(At 2023-12-08 10:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong74.7634.437.717.54
Sham Shui Po66.4635.641.8194
Kwai Chung84.644.31135.715.94
Tsuen Wan67.361.18.5506.731.716.34
Tseung Kwan O21.51115.535329.115.74
Yuen Long8335.610785.339.1214
Tuen Mun102.115.26.1676.132.322.24
Tung Chung54.520.58.5564.423.913.53
Tai Po48.553.
Sha Tin57.153.48.933.420.63
Tap Mun17.191.34.2401.926.312.73

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay97.637.66.9588.652.826.45
Mong Kok103.839.47.6602.442.720.65


(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: 10:07 08-12-2023