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Pollutant and AQHI Distribution

(At 2023-06-08 15:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong29.532.
Sham Shui Po34.
Kwai Chung50.726.26.913.36.73
Tsuen Wan36.329.33.8669.914.75.62
Tseung Kwan O16.449.14.1111.810.96.62
Yuen Long19.844.54.3463.463.62
Tuen Mun27.934.61.2490.510.152
Tung Chung6.436.73.13163.91.92
Tai Po28.437.
Sha Tin14.
Tap Mun1.6604.5377.241.12

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay62174.1427.221.813.63
Mong Kok7414.45.3615.213.77.83


(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) In case of equipment or station suspension due to repair and maintenance, the data collection for calculation of AQHI at station will be affected, the data of similar stations will then be adopted. Such AQHI will be shown with an asterisk.