Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-04-28 16:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western33.278.31.37.53.64
Southern13.784.50441.18.37.83
Eastern46.378.10.610.85.64
Kwun Tong28.582.1013.59.14
Sham Shui Po46.568.33.2128.94
Kwai Chung38.673.21.17.55.44
Tsuen Wan47.9845.9440.56.65.84
Tseung Kwan O12.6104.81.7256.48.41.34
Yuen Long22.683.51.2612.81.7-4
Tuen Mun20.284.33.4670.61074
Tung Chung13.687.90.9455.17.46.23
Tai Po22.995.32.75.35.24
Sha Tin14.11001.16.44.74
North14.11021.2341.88.16.44
Tap Mun3.9118.21.333716.214.34

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay56.662.13.3547.720.916.24
Central67.248.31.9429.916.411.94
Mong Kok79.5452424.518.414.24


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: 16:07 28-04-2024