(At 2022-10-03 06:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong19.131.6413.49.42
Sham Shui Po13.439.20.914.98.62
Kwai Chung---159.82
Tsuen Wan13.428.38.3336117.92
Tseung Kwan O11.140.92.795.612.210.52
Yuen Long15.412.22.6617.513.5102
Tuen Mun1035.13.2392.81762
Tung Chung14.623.74.4468.713.56.22
Tai Po13.931.30.715.19.42
Sha Tin5.644.
Tap Mun3.746.38.6627.213.57.72

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay13.838.21.7142.415.392
Mong Kok29.6321.2561.610.57.62


(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.

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Last revision date: 06:07 03-10-2022