Pollutant and AQHI Distribution

(At 2015-09-04 21:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 40.5 9.1 5.5 16.4 9.9 2
Eastern 28.6 26.7 9.3 12 6.8 2
Kwun Tong 62.5 12.1 4.5 25.6 13.5 3
Sham Shui Po 60.2 4.6 23.1 25.4 19.1 3
Kwai Chung 63.3 13.9 31.1 19.7 10 3
Tsuen Wan 61.2 2.1 18.7 677.4 18.8 9.2 3
Yuen Long 51.1 5.8 15.4 374.4 14.3 10.5 2
Tuen Mun 41.1 8.8 8.3 587.3 22 14 2
Tung Chung 25.8 5.3 3.5 346 12.1 6.8 2
Tai Po 46.1 7 8 24.9 14.9 2
Sha Tin 61 2.3 16.5 9.3 4.5 2
Tap Mun 4.8 15.9 6.2 727.6 15.5 10.1 2

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 178.5 1.6 11.7 880 43 28.2 5
Central 66.1 3.6 8 767.7 18.2 13.8 3
Mong Kok 93.2 0.5 9.9 635.3 30.4 17 4


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 04-09-2015