Welcome to Environmental Protection Department Air Quality Health Index Website


Pollutant and AQHI Distribution

(At 2018-09-23 12:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western28.418.88.994.62
Eastern18.432.33.618.28.42
Kwun Tong18.126.55.518.95.52
Sham Shui Po2728.62.822.315.12
Kwai Chung38.79.919.615.712.82
Tsuen Wan25.815.116.4225.920.37.42
Tseung Kwan O10.333.26.2477.810.51.82
Yuen Long27.713.97.2348.1178.72
Tuen Mun1929.816.1640.7138.12
Tung Chung23.810.513.5313.110.87.12
Tai Po6.537.538.15.92
Sha Tin11.2418.9632
Tap Mun-------

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay52.87.68.7539.63119.72
Central43.211.67.9476.116.78.92
Mong Kok52.815.93.6445.213.1102


Remarks:

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

(2) Time shown is in Hong Kong time.

(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) Owing to failure of power supply, the operation of Tap Mun general station has been suspended until further notice. We apologize for any inconvenience caused.

(6) Owing to urgent repairing work, the monitoring of Eastern general station is temporarily suspended until further notice. Regret for any inconvenience caused.


Last revision date:12:07 23-09-2018