Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-05-07 13:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western108.167.47.643.5315
Southern72.585.49.8719.137.518.65
Eastern59.2118.41.938.3275
Kwun Tong9984.82.845.527.25
Sham Shui Po5996.25.736.822.75
Kwai Chung101.665.68.937.925.55*
Tsuen Wan1221019.7588.350.238.56
Tseung Kwan O28.8153.44.2344.241.222.75
Yuen Long73.9156.16.1794.652.539.17
Tuen Mun114.679.913.8944.159.340.96
Tung Chung80.2125.68634.648.437.56*
Tai Po48.3127.22.939.532.55
Sha Tin36.5136.91.732.5235
North45.8132.82.4462.845.128.76
Tap Mun6.1134.51.6500.928.119.85

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay169.713.68.7975.98153.26
Central168.710.96.6853.748.833.16
Mong Kok115.7524.5464.234.824.45


Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(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: 13:07 07-05-2024