Pollutant and AQHI Distribution

(At 2018-12-15 15:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong33.483.35.438224
Sham Shui Po76.847.33.628.819.94
Kwai Chung108.117.219.941.3254
Tsuen Wan932219.8843.537.825.94
Tseung Kwan O14.9111.76.2816.821.415.24
Yuen Long58.169.87.4992.74426.84
Tuen Mun-517.31262.865.135.34
Tung Chung108.130.421.21128.272.441.54
Tai Po39.777.33.537.423.14
Sha Tin25.497.25.88.2-4
Tap Mun9.4122.18556.134.521.74

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay105.220.29.7966.250.531.94
Mong Kok99.8315.6905.939.728.84


(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 equipment maintenance, monitoring of Nitrogen Dioxide at Tuen Mun general air quality monitoring station is temporarily suspended. We apologize for any inconvenience caused.

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Last revision date:15:07 15-12-2018