Pollutant and AQHI Distribution

(At 2019-12-11 02:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong138.11.1671.9385
Sham Shui Po130.
Kwai Chung90.8288.964.737.55
Tsuen Wan98.218.74.4774.458.840.15
Tseung Kwan O117.16.14.7918.741.424.24
Yuen Long9817.81137.169.334.44
Tuen Mun141.657.2740.89054.95
Tung Chung----54.436.74
Tai Po75.720.67.565.446.74
Sha Tin98.445.34732.34
Tap Mun12.151.25.4495.523.917.23

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay141.21.98.31167.560.436.45
Mong Kok144.50.99.81270.671.549.35


(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, the operation of Tap Mun general station will be temporarily suspended on 17 Dec 2019. We apologize for any inconvenience caused.

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Last revision date:02:07 11-12-2019