Pollutant and AQHI Distribution

(At 2019-07-21 17:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong33.935.46.523.7103
Sham Shui Po19.149.75.423.39.13
Kwai Chung39.425.8519.37.32
Tsuen Wan2434.56.6353.720122
Tseung Kwan O32.533.44.5382.816.410.42
Yuen Long17.4445.1645.718.152
Tuen Mun23.538.62.8448.218.1132
Tung Chung9.344.98.4327.51910.82
Tai Po16.652.44.817.2123
Sha Tin23.542.64.617.78.42
Tap Mun12.9691.4296.212.17.43

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay26.321.15692.619.810.72
Mong Kok91.714.43.8726.422.414.43


(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.

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Last revision date:17:07 21-07-2019