Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-05-11 16:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western44.475.13.530.712.44
Southern21.585.62.5618.639.411.44
Eastern42.298.61.833.113.95
Kwun Tong53.772.61.627.3144
Sham Shui Po56.355.22.626.911.54
Kwai Chung28.572.82.123.811.34
Tsuen Wan46.378.71.8335.222.211.34
Tseung Kwan O13.1121.42.1316.635.913.95
Yuen Long19.978.42293.122.3114
Tuen Mun27.1713.8664.52411.34
Tung Chung675.4135714.86.73
Tai Po18.583.92.421.610.74
Sha Tin13.993.51.420.810.44
North28.376.40.9273.311.710.64
Tap Mun3.8131.22.8414.620.710.55

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay74.850.42524.144.9264
Central103.430.13.8395.147.5194
Mong Kok111.3234.1635.933.718.14


Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(4) The Pollutant concentration and AQHI information are based on real time data taken directly from EPD's Air Quality Monitoring Network.

(5) In case of equipment or station suspension due to repair and maintenance, the data collection for calculation of AQHI at station will be affected, the data of similar stations will then be adopted. Such AQHI will be shown with an asterisk.


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Last revision date: 16:07 11-05-2024