(At 2023-12-04 21:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong97.833.3472.254.35
Sham Shui Po127.
Kwai Chung138.32.41468.244.86
Tsuen Wan9912.68.3805.36743.95
Tseung Kwan O53.273.13.5654.246.742.25
Yuen Long75.517.79.6944.469.439.44
Tuen Mun82.97.87.9839.972.9434
Tung Chung71.53.810.5940.240.115.14
Tai Po77.8273.462.844.55
Sha Tin112.310.2664.345.95
Tap Mun7.973.51.5506.434.229.44

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay120.712.28.11058.195.167.86
Mong Kok136.815.112.2913.274.247.66


(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: 21:07 04-12-2023