Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-03-29 22:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western62.495.63.763.334.46
Southern7930.14.8682.835.94.44
Eastern15.2157.92.257.434.16
Kwun Tong98.869.25.951.819.16
Sham Shui Po84.725.7646.826.25
Kwai Chung7150.4345.623.24
Tsuen Wan48.683.62.9754.250.832.35
Tseung Kwan O43.4109.23.2476.762.243.16
Yuen Long29.5107.82.6786.257.933.96
Tuen Mun37.6113.83.8767.269.9406
Tung Chung26.2139.32.1463.450.630.86
Tai Po44.8114.14.363.139.56
Sha Tin61.774.85.754.131.85
North57.586.82.5632.95028.16
Tap Mun14.2144.61.5447.74531.46

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay142.120.76.91129.181.952.96
Central137.12.25.3669.968.342.25
Mong Kok10620.25.8605.257.235.25


Remarks:

(1) Time shown is in Hong Kong time.

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

(3) Concentration shown is in µg/m3.

(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: 22:07 29-03-2024