Pollutant and AQHI Distribution

(At 2018-01-18 21:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong32.592.34.953375
Sham Shui Po62.
Kwai Chung6472.34.541.331.65
Tsuen Wan5292.512862.957.644.96
Tseung Kwan O17.5111.63.8903.3--5
Yuen Long56.868.79448.271.745.45
Tuen Mun143412.9926.680.953.96
Tung Chung73.841.39.3736.557.139.95
Tai Po35.6102.62.648.734.45
Sha Tin50.683752.9345
Tap Mun11.4107.77.6533.747.429.85

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay125.220.27.41170.265.847.96
Mong Kok8551.34.11054.96246.95


(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 quality assurance checking, monitoring of RSP (PM10)  and FSP (PM2.5) at Tseung Kwan O general air quality monitoring station is temporarily suspended from 17 to 19 January 2018. We apologize for any inconvenience caused.

Last revision date:21:06 18-01-2018