Welcome to Environmental Protection Department Air Quality Health Index Website


(At 2024-04-27 09:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western14.628.71.220.48.32
Southern34.212.90.4466.625.76.62
Eastern19.740.90.919.89.83
Kwun Tong36.914.71.223.110.52
Sham Shui Po46.62.8522.29.82
Kwai Chung53.11.38.924.69.92
Tsuen Wan4525.48.2338.823.512.63
Tseung Kwan O22.828.71.7176.128.313.12
Yuen Long36.114.61.7562.82212.42
Tuen Mun49.89.75.4747.832192
Tung Chung23.2281476.319.49.72
Tai Po44.810.13.530.519.92
Sha Tin27.119.41.824.411.62
North49.16.73.5613.524.515.32
Tap Mun7.431.51.1316.214.87.12

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay51.410.14.8545.430.318.62
Central57.933.9350.924.411.72
Mong Kok51.74.94368.626.9142


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: 09:07 27-04-2024