Past record of Air Quality Health Index (Simplified Chinese Version)

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• ID: hk-epd-airteam-past-record-of-air-quality-health-index-sc
• Publisher: Environmental Protection Department · Markdown
• Categories: Environment · Markdown
• Tags: Not stated
• Resources: 151
• Updated: 2026-07-09T16:36:04.156825
• Harvest started: 2026-10-20T22:31:00.105Z
• Licence: Not stated
• Source: Official metadata record

Harvest started is the source harvest start associated with this record, not its precise retrieval time. Updated is an upstream metadata claim.

Description

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations since 30 December 2013 (Simplified Chinese Version)

Resources

These are upstream resource links from metadata. Resource contents and endpoint availability have not been verified here.

Past record of Air Quality Health Index (Simplified Chinese) May 2017

• Resource ID: 01fe9419-abfa-4588-8f50-04f72cf7b118
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:32.509938
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201705_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2017

• Resource ID: 04b2cb66-1687-4460-9762-673300f79b05
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:25.559045
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201702_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2021

• Resource ID: 051c66bf-4dc6-492b-8c44-8392cb997b99
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:11.336883
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202107_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2026

• Resource ID: 051e7c6d-1ea2-46a3-94a3-5144a15a2ae1
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:35:44.974781
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2026/202604_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2026.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2020

• Resource ID: 055a714c-d230-4aa5-a016-11d046b96454
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:03.338063
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202001_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2019

• Resource ID: 094ca32d-4ce1-43b3-90ee-008e12ffa807
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:43.751527
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201907_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2020

• Resource ID: 09fa58a2-c1f6-4308-8fe9-254175b302de
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:39.712740
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202011_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2015

• Resource ID: 0ad1b5c5-88fd-4c1f-9b0c-5c5fac71fd5b
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:46.706889
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201503_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2024

• Resource ID: 0ba942c9-8123-483e-b3b6-c0cad0b23e79
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:17.806787
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202409_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2026

• Resource ID: 0be853ab-3b7f-4bff-9691-ab553a5d3a4b
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:36:04.203431
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2026/202606_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2026.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2018

• Resource ID: 0bf863c5-e479-4c3a-846e-0d5f4beb9ab3
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:03.672538
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201805_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2021

• Resource ID: 10f6f59e-6b56-4774-bfa6-2b9c08931f6e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:51.015688
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202102_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2023

• Resource ID: 1174c1c2-930b-4dca-b3d2-ab327aa47af6
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:42.401914
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202303_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2023

• Resource ID: 1411628d-3d10-4126-a546-445276fdce65
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:47.350440
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202304_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2025

• Resource ID: 15da8e7b-74f4-460a-86c7-ed1015bebd20
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:52.455785
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202503_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2022

• Resource ID: 16b16f26-be96-461e-b882-c86979d4db76
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:17.085277
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202210_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2014

• Resource ID: 184c1d88-3fb2-45ed-9399-474f77773329
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:36.427592
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201405_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2015

• Resource ID: 19997767-59f8-4ac9-88fc-9e336045f92d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:54.775626
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201509_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2017

• Resource ID: 1a7545ec-2920-4571-9908-c60c9d317291
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:36.740517
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201707_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2024

• Resource ID: 1a947aa5-3041-4c21-89be-450e0a81e51c
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:28.895729
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202411_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2022

• Resource ID: 1bf0dde9-4002-40ba-82f5-9b38381c4ab3
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:40.841062
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202202_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2024

• Resource ID: 1f12f1cc-839e-4b67-807d-518a25cb935e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:00.584767
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202406_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2019

• Resource ID: 1fd3ee1e-318a-42ba-801d-d106a36d4203
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:53.207350
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201910_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2023

• Resource ID: 207d1e27-956e-41d0-ba07-e94a58b691e4
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:37.529386
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202302_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2020

• Resource ID: 24c6f0e5-1106-45ed-ad58-d1ea653d48cd
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:13.717699
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202004_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2015

• Resource ID: 274194f4-7d46-4144-8c13-41b99d410fe6
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:45.511007
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201502_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in Feburary 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2018

• Resource ID: 2a06d4f2-218a-4a84-959d-1c8bc2f1b708
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:06.426329
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201806_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2016

• Resource ID: 2e2264f4-86d7-4301-aad3-310eb660effe
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:10.261529
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201606_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2016

• Resource ID: 2e7b5008-9d82-4515-9960-e24cc7e21634
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:13.847961
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201608_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2014

• Resource ID: 2efa6540-3222-4858-a169-5e30db44db0f
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:40.082098
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201409_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2018

• Resource ID: 30d1e62d-b88f-49c8-827f-7ac8ff41d058
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:53.272407
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201801_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2022

• Resource ID: 312197e7-b0b0-4370-ac62-78b37ad3bbb0
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:49.448070
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202204_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2016

• Resource ID: 369d5c77-69f4-44f8-ab79-5903fee01eae
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:17.711904
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201610_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2019

• Resource ID: 3e3b9543-f9e7-4f66-aaca-f84c1fe055ae
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:49.997636
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201909_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2015

• Resource ID: 423344fd-9a86-4fea-b683-45801221773e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:51.938405
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201507_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2014

• Resource ID: 42eaee22-55ef-4b49-a579-9d635a207a30
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:38.177190
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201407_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2020

• Resource ID: 432ed035-51eb-49f9-ac22-09c081d22246
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:43.324891
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202012_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2017

• Resource ID: 454527cf-afdc-48ca-818a-fe9e117e29dd
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:34.587071
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201706_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2021

• Resource ID: 456c27a8-8445-4ae1-b3ca-752dcf151f28
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:07.332679
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202106_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2014

• Resource ID: 46493f2a-8294-4bee-832a-8a12a964f015
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:43.193070
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201412_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2014

• Resource ID: 46c58451-0cbd-48ab-9f81-ea8d4eee1757
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:37.288705
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201406_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2015

• Resource ID: 46cf4a99-a1ed-4f56-ad9d-45d8bedff0cb
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:53.331169
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201508_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2020

• Resource ID: 483d0946-b303-44e1-afdc-bf46f8c7fb4e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:20.929379
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202006_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2015

• Resource ID: 484056e1-0804-4277-a9bb-000381a82974
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:58.159609
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201511_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2019

• Resource ID: 49c2ac4a-5b96-4066-b721-f09bff153d78
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:59.875657
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201912_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2025

• Resource ID: 52ed478a-cfa1-40e9-bd53-d9578521fd02
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:40.744515
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202501_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2018

• Resource ID: 57086622-2ac5-4d9a-b5a6-031ec5625d97
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:20.348825
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201811_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2020

• Resource ID: 57666a9d-4010-4ac5-aa5e-f5e2d65106ac
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:10.216445
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202003_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2025

• Resource ID: 5e4d9070-46d1-4c95-8195-cbcaf840d23a
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:56:16.669545
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202507_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2017

• Resource ID: 603dc2d0-7d1a-4eef-94a6-a34a1b5e51c7
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:45.395000
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201710_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2019

• Resource ID: 634be324-3e1b-45ec-a674-8fb236ff73ea
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:31.786656
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201903_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2026

• Resource ID: 63e7ef8d-7229-46f1-944d-1147fc132a2e
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:35:26.619810
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2026/202602_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2026.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2026

• Resource ID: 690e8ca6-6016-4334-982f-59e013ea73a5
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:35:53.999962
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2026/202605_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2026.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2013

• Resource ID: 69272647-4b72-48c1-8985-a00d899d3319
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:29.575853
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2013/201312_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2013.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2014

• Resource ID: 6998dd0d-5818-4704-8451-8e03a8513c81
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:33.381702
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201401_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2018

• Resource ID: 6abe26d7-a88e-4bf9-b105-cc79d17e1bd3
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:11.899607
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201808_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2020

• Resource ID: 6c4111bc-a641-473b-a00f-a838d9819ebf
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:28.325092
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202008_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2025

• Resource ID: 6c7710d0-1977-45fc-a02c-7d3f38809ef5
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:56:10.421778
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202506_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2019

• Resource ID: 6f92ed79-e338-482d-82ba-59689ee4e96b
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:26.035070
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201901_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2014

• Resource ID: 6fa7601f-6b7b-49f6-86d9-19f867b80455
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:41.068598
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201410_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2023

• Resource ID: 70b84a67-4f35-4d77-9f2e-daaa527657e4
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:02.404189
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202307_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2022

• Resource ID: 70c65ba1-4a11-41c2-b333-6cacc6a26797
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:36.491846
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202201_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2014

• Resource ID: 714a6090-fc20-4713-b499-8db741685712
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:34.067102
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201402_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in Feburary 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2020

• Resource ID: 72067d7c-1f7e-4ec0-86c9-3de76e293a19
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:24.689573
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202007_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2021

• Resource ID: 72d9a991-51bd-4f32-9243-b088d5cdcdc3
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:19.568102
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202109_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2019

• Resource ID: 7426bba4-e995-44f2-bb85-f38b35b30a6e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:34.695131
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201904_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2016

• Resource ID: 75b2f890-549d-495b-9a50-48906737797f
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:08.533173
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201605_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2014

• Resource ID: 75c73834-9502-4a6a-b1d1-fcfa9aca8614
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:35.592457
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201404_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2020

• Resource ID: 7678f334-26d8-4674-95b8-e1ed146cf16e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:17.252500
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202005_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2022

• Resource ID: 769a6a58-5731-446f-b21c-ae8c298568fb
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:53.864517
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202205_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2015

• Resource ID: 772089ac-74ae-4b7f-950e-feb4fd97c351
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:59.903742
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201512_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2023

• Resource ID: 77e303ce-38af-4bd9-896c-ad49d413329d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:22.658497
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202311_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2014

• Resource ID: 783cb3c0-5c36-4130-be34-5a9ee5572fd9
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:34.811010
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201403_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2024

• Resource ID: 78b267f4-9396-4cc4-b3c6-25c658e1f8b1
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:44.309463
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202403_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2023

• Resource ID: 799bbdb7-a996-481c-98bd-7854e668d95f
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:12.460092
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202309_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2016

• Resource ID: 79a71a92-f059-44bc-b074-0a1a56343359
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:12.067302
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201607_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2017

• Resource ID: 7a689232-27ba-4c67-aa02-d06fd34b9d7d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:27.657781
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201703_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2017

• Resource ID: 7b33418b-6704-41de-a44e-0a08d40c2000
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:48.527063
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201711_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2018

• Resource ID: 7e918680-1960-44b9-8f04-acb1344e935d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:55.765797
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201802_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2021

• Resource ID: 7f2d9f12-02e5-4a99-911a-711311c9f451
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:32.320237
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202112_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2019

• Resource ID: 818eaec7-2b39-4bef-9e56-6ae9314f524b
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:56.462671
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201911_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2017

• Resource ID: 83704585-60e1-4142-9818-2034281b912a
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:42.071025
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201709_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2021

• Resource ID: 85695e33-71de-4310-a0de-3e026fc37f2d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:15.534010
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202108_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2025

• Resource ID: 8ba74fad-10c2-44dc-a266-bfff107a83d6
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:34:39.282335
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202509_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2026

• Resource ID: 8bb99285-7485-44f4-8a92-2f3c4f9e165a
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:35:35.686872
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2026/202603_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2026.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2020

• Resource ID: 8f4cc93f-f66d-427e-ac7a-9314036bd02d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:35.919984
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202010_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2025

• Resource ID: 8f6da45b-746c-4c4b-8d1f-9bd91d8bac9a
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:58.444798
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202504_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2025

• Resource ID: 8fc3aae4-f819-4f40-b919-f76d8677a2df
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:34:58.332012
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202511_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2021

• Resource ID: 9268ba0b-9a3f-450c-8140-c8c566bbf9d5
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:23.682140
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202110_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2026

• Resource ID: 94a337d5-5c8a-4b25-9f74-42cf977b3586
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:35:17.113266
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2026/202601_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2026.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2018

• Resource ID: 9b38bd93-2938-4a6a-800b-979d9d7eb503
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:00.879244
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201804_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2016

• Resource ID: 9db6c70d-048c-4e87-80dd-0d8c308238bb
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:19.571269
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201611_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2025

• Resource ID: 9e572cbc-b5e3-4538-ad68-b77b103c7895
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:56:04.527164
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202505_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2024

• Resource ID: a1da01b7-e324-4660-b181-c6960dc3acbc
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:23.314922
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202410_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2022

• Resource ID: a223ccbb-7ae5-4b33-9409-5988bd8515f1
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:26.815039
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202212_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2018

• Resource ID: a30f4c07-f051-4db1-bafc-1593ae43240b
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:58.177947
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201803_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2022

• Resource ID: a38a4bf8-105a-45d5-948e-bbca8a4d99fa
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:21.836519
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202211_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2016

• Resource ID: a80d2859-9e1c-4899-91a5-86e1ee2a5bec
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:06.825121
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201604_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2021

• Resource ID: a99427db-4df9-4292-be1e-8ef4fbe090a4
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:54.986703
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202103_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2022

• Resource ID: aa7c14c8-09d0-438d-a2bb-e0a8acd32074
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:58.407676
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202206_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2018

• Resource ID: abb08a19-1d9c-49ac-906f-9bac7e4d3d03
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:23.229044
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201812_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2025

• Resource ID: ace8ce94-79b5-4b08-99c5-841dfeec3449
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:46.635465
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202502_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2015

• Resource ID: ad8ec29c-7904-4c57-a079-122f9440812f
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:56.582104
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201510_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2017

• Resource ID: b22ee8ae-6210-4074-9d74-536bb43f3ffd
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:30.283053
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201704_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2015

• Resource ID: b37d9f1d-d77a-4f60-9acd-b430dabc5b92
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:49.237165
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201505_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2021

• Resource ID: b86aa12d-b616-433c-91c9-5cd0f9819ca4
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:58.838695
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202104_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2021

• Resource ID: bbbc9db9-6756-4b06-be10-fd22ae317a64
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:03.100257
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202105_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2016

• Resource ID: bbfddc07-41ba-4829-9ebd-9e7e1fbed540
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:03.504222
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201602_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2020

• Resource ID: bc85aa04-a8a7-49ec-994c-354959633690
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:06.806555
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202002_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2014

• Resource ID: bd39a9d2-1d84-4f63-81ec-63805249cf28
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:39.106103
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201408_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2023

• Resource ID: bde7938c-4c15-4bc1-a1b4-441e0825d9b9
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:27.876936
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202312_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2017

• Resource ID: be534b28-82de-4f93-9ae4-8bbe78b32e0c
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:38.937950
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201708_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2024

• Resource ID: bf7c44d5-8e27-43fa-9fcd-704ff6df206e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:38.903518
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202402_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2019

• Resource ID: bf81934f-dbbe-44a0-9610-4139979da57f
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:37.733745
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201905_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2023

• Resource ID: c04a6739-391b-4a0a-85c6-50c989ade945
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:57.242911
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202306_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2023

• Resource ID: c425b9a8-057e-4b9a-95de-b388eaea9392
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:07.420363
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202308_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2024

• Resource ID: c67b8fa5-9ba6-473d-8af3-a88889c41da5
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:49.356496
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202404_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2016

• Resource ID: c81f825d-5a75-4d8e-ad8a-51728da442c7
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:21.504241
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201612_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2023

• Resource ID: c8442390-a41f-46d4-8d65-a0dcaed480a4
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:17.430888
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202310_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2019

• Resource ID: c929c841-9a15-436e-aa7f-a038bf058f6b
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:46.922076
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201908_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2018

• Resource ID: c92f0db3-7b4c-4d1a-b07b-0700b3d48f85
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:14.618991
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201809_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2017

• Resource ID: cac4d01c-1dd9-4d1b-8e65-5ac63939a349
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:23.447957
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201701_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2023

• Resource ID: cafb409e-0a8b-4dd7-98ea-7ab2737f4f64
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:52.187939
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202305_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2025

• Resource ID: cc3b735a-9d4c-466c-b475-d8da4b5f1915
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:34:30.135525
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202508_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2020

• Resource ID: d0dc8152-00b2-46fe-8ef8-6c29920ccc50
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:32.302591
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2020/202009_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2020.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2022

• Resource ID: d233a1ea-1a3e-4229-bfcf-75953fedc07e
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:12.384978
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202209_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2025

• Resource ID: d28c71bd-1e00-453d-8654-c1f205f3fe54
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:35:07.352818
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202512_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2025

• Resource ID: d6b1bde0-f8c5-4220-a419-2ef57c24ce2f
• Format: CSV
• Language: zh-Hans
• Updated: 2026-07-09T16:34:48.634972
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2025/202510_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2025.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Sep 2016

• Resource ID: d7276c63-3481-4d74-b3b2-dbfb073845ac
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:15.893948
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201609_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in September 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2017

• Resource ID: d99c29f7-6f30-4634-90ac-18fd7a418c65
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:50.933517
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2017/201712_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2017.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2024

• Resource ID: d9d4afa5-524b-4562-886e-2d888f90eb5a
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:06.333695
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202407_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Oct 2018

• Resource ID: dbd0b19d-c53c-4775-92d0-7aa7a3f88256
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:17.562639
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201810_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in October 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2019

• Resource ID: ddf2e9ee-dae1-4207-a0a1-8d755b5f7810
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:40.724118
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201906_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2015

• Resource ID: de141e67-35be-478d-9f5a-9987fcbe5bcc
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:44.347668
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201501_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Apr 2015

• Resource ID: df998bd1-3737-4f15-83fb-45a59b01a5ad
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:47.996053
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201504_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in April 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2021

• Resource ID: dfd1f913-01c1-46b1-b361-b4ca2d444dab
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:28.002543
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202111_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2016

• Resource ID: e0863655-f1fd-449e-9e8c-e2f4e7b5fd04
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:01.641329
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201601_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Dec 2024

• Resource ID: e0a17c4e-edef-4d6a-9bab-d40720efde16
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:34.956088
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202412_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in December 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2024

• Resource ID: e23d824f-cc68-4754-be84-0321b6ac1a16
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:33.616473
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202401_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2024

• Resource ID: e272263b-4a6d-42ca-a49b-422f97b2b254
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:55:11.925601
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202408_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2016

• Resource ID: e3c1a9bc-55d4-4fc8-9894-0465bc6be0d5
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:49:05.208560
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2016/201603_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2016.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Nov 2014

• Resource ID: e4f5f1e2-c80c-4e58-b95d-97c6ea5db2da
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:42.138081
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2014/201411_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in November 2014.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Feb 2019

• Resource ID: e796b100-65ed-4e6f-9e38-a3941dc31c75
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:28.821294
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2019/201902_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in February 2019.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2021

• Resource ID: e9a78a24-d1e0-4cb5-bccd-91b76571525d
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:51:47.101265
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2021/202101_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2021.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jan 2023

• Resource ID: ebc89268-d061-4de1-8f25-7f3f90452834
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:32.323529
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2023/202301_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in January 2023.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) May 2024

• Resource ID: eea81803-2505-48a8-ae6c-67b843af7ab3
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:54:54.900315
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2024/202405_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in May 2024.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jun 2015

• Resource ID: f10fa30e-57a8-4130-b154-174bf402731c
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:48:50.567990
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2015/201506_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in June 2015.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2018

• Resource ID: f28bb61c-0105-4947-a633-bd5494b86e69
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:50:09.150116
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2018/201807_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2018.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Mar 2022

• Resource ID: f8e59845-75f2-42aa-a9c4-69b4879783d5
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:52:45.190377
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202203_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in March 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Jul 2022

• Resource ID: fc4059a5-321b-41a3-a020-f37e25846cd4
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:03.099323
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202207_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in July 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Past record of Air Quality Health Index (Simplified Chinese) Aug 2022

• Resource ID: fcbcc8e2-5286-4e09-84c2-438df8fa36de
• Format: CSV
• Language: zh-Hans
• Updated: 2025-08-04T16:53:07.721497
• Original URL: https://www.aqhi.gov.hk/epd/ddata/html/history/2022/202208_ChS.csv

Hourly Air Quality Health Index (AQHI) at different Air Quality Monitoring stations in August 2022.

The Environmental Protection Department releases AQHI information hourly to inform the public of the short-term health risk of air pollution in Hong Kong and helps the public take precautionary measures to protect their health. The AQHIs are reported on a scale of 1 to 10 and 10+ and are grouped into five AQHI health risk categories with health advice provided. This is particularly useful for children, the elderly and those with heart or respiratory illnesses who need to take precautions when the health risk levels are high. The AQHI forecast also advises the public before the onset of high health risk categories due to pollution episodes.

Please refer to the [thematic page of AQHI](http://www.aqhi.gov.hk/en) for more information.

The above external links lead to a collection of CSV files containing past hourly AQHI data since December 2013.

Document availability

Parsed specifications and data dictionaries: not available for this dataset. Document availability.