Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-05-13 07:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western46.227.65.332.323.63
Southern42.219.93.783922.520.33
Eastern35.842.20.820.414.33
Kwun Tong51.227.22.224.516.33
Sham Shui Po44.1253.530.121.13
Kwai Chung32.3352.125.5182
Tsuen Wan45.935.52.5524.824.117.33
Tseung Kwan O54.66.85.2638.734.621.53
Yuen Long41.819.73.2542.848.736.93
Tuen Mun61.76.56.4909.550.832.83
Tung Chung70.703.1713.449.632.43
Tai Po44.1-3.950.131.52
Sha Tin46.417.72.741.728.23
North36.58.12.4558.930.222.12
Tap Mun10.657.43.3503.621.213.23

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay70.19.34.1843.835.921.43
Central736.24.6523.733253
Mong Kok64.722.43.1614.428.3213


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.


Last revision date: 07:07 13-05-2024