Pollutant and AQHI Distribution

(At 2014-09-01 21:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 15.8 24.1 2.3 - 10.6 4.7 2
Eastern 41.6 16 6.3 - 6.5 3.2 2
Kwun Tong 35.6 10.7 9.3 - 22.5 8.2 2
Sham Shui Po 47 4 5.2 - 30.1 20.4 2
Kwai Chung 42.3 5.1 6.1 - 15.5 8.5 2
Tsuen Wan 50.2 3.8 17.2 585.9 25.2 16.3 2
Yuen Long 46.6 2.1 23 524.5 17.5 7 2
Tuen Mun 42.4 5.6 26.3 453.3 18.6 7.9 2
Tung Chung 3.4 36.2 6.2 356.8 4.5 1.2 2
Tai Po 45.6 16.9 2.2 - 19.6 10.7 2
Sha Tin 47.8 3.4 3.6 - 13.4 5.6 2
Tap Mun 4 18 10.3 370.8 13.7 8.6 2

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 111.6 2 3.5 697.5 50.6 37.3 4
Central 79.1 9.8 3.4 616.9 10.9 5 3
Mong Kok 64.6 3.9 2.6 616.4 23.4 15.1 3


Remark:
(1) NO2 - nitrogen dioxide, O3 - ozone, SO2 - sulphur dioxide, CO - carbon monoxide, PM10/RSP - particulate matter with an aerodynamic diameter of less than 10 μm / respirable suspended particulates, PM2.5 / FSP - particulate matter with an aerodynamic diameter of less than 2.5 μm / fine suspended particulates.
(2) Concentrations in micrograms per cubic meter (μg/m3).
(3) Pollutant concentrations and AQHI information are based on raw data taken directly from EPD's Air Quality Monitoring Network.

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Last revision date:21:06 01-09-2014