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Pollutant and AQHI Distribution

(At 2021-08-01 04:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western3.558.93.6127.32
Southern23.438.15164.818.511.82
Eastern9.963.30.719.65.53
Kwun Tong---2.6-2
Sham Shui Po30.2388.818.59.33
Kwai Chung---17.19.42
Tsuen Wan23.624.34.1717.211.85.32
Tseung Kwan O17.460.26.5375.310.16.23
Yuen Long15.5418.2497.714.38.32
Tuen Mun16.735.23.962117.262
Tung Chung11.932.75.2289.414.28.32
Tai Po30.723.92.210.45.32
Sha Tin---12.35.82
North8.147.82.3391.418.29.32
Tap Mun336.26.3358.29.63.82

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay28.328.72.8760.41913.42
Central37.825.62.4424.714.610.42
Mong Kok26.93221017.512.38.32


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) Owing to temporary suspension of electricity supply, monitoring at Central roadside air quality monitoring station will be temporarily suspended on 6 August 2021 from 9:30AM to 6:00PM. We apologize for any inconvenience caused.