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Pollutant and AQHI Distribution

(At 2021-09-22 18:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western21.645.62.36.14.12
Southern12595.9407.48.53.53
Eastern3254.70.91.9-3
Kwun Tong32.434210.152
Sham Shui Po44.933.21.810.65.33
Kwai Chung19.338.61.85.54.52
Tsuen Wan3129.34.2499.365.42
Tseung Kwan O10.260.32.1384.53.32.13
Yuen Long22.934.89.2631.864.23
Tuen Mun11.355.34.7439.31043
Tung Chung1141.87.21982.92.12
Tai Po24.940.83.64.73.32
Sha Tin6.5565.24.53.22
North14.851.50.6445.57.34.42
Tap Mun2.569.86.74305.553

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay50.721.24.8677.825.116.43
Central37.530.43.3847.18.45.92
Mong Kok67.115.93.9772.512.17.93


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.