EPD


Pollutant and AQHI Distribution

(At 2024-03-19 10:00)


General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Central/Western3918.12.36.32.32
Southern32.2-1.6920.33.10.52*
Eastern34.329.30.452.22
Kwun Tong43.213.12.3-2.92
Sham Shui Po33.125.70.67.75.62
Kwai Chung41.322.13.66.73.92
Tsuen Wan40.3211.81140.99.27.42
Tseung Kwan O14.240.90.7586.13-2
Yuen Long32.626.21.4972.4432
Tuen Mun49.315.13.7942.814.19.22
Tung Chung22.128.32.77108.17.32
Tai Po27.923.11.85.93.32
Sha Tin18.640.30.52.21.72
North31.2270.9651.9-5.22
Tap Mun13.435.30.4626.73.72.42

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay64.79.14.711392918.93
Central73.22.75.2806.510.57.43
Mong Kok49.816.82.6749.16.94.52


Remarks:

(1) Time shown is in Hong Kong time.

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

(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) 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.