Pollutant and AQHI Distribution

(At 2015-02-28 12:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 50.9 23.6 0.8 - 46.3 27 3
Eastern 53.3 35.4 0.3 - 35.3 24.3 3
Kwun Tong 26.3 62.1 6.7 - 44.4 17.7 3
Sham Shui Po 69.3 30.6 3.9 - 37.4 24.4 4
Kwai Chung 49.8 49 7.6 - 20.5 16.9 3
Tsuen Wan 53.1 44.2 7.6 803.4 26.1 17.4 3
Yuen Long 25.1 56.8 3 465.5 30.3 20 3
Tuen Mun 27.8 42.6 5.3 549.9 26 19 3
Tung Chung 18.2 64.3 6.8 204 20.9 12.2 3
Tai Po 29.1 60.9 2 - 29.5 17.5 3
Sha Tin 18.6 65 4.4 - 27.3 16.2 3
Tap Mun 6.2 85.2 4 480.6 28.4 17.8 3

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 108.7 21.1 0.6 416.7 52.3 29.1 4
Central 91 21.1 4.5 478 34.6 17.6 4
Mong Kok 99.8 13.6 2.2 841.9 50.3 30.2 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:12:06 28-02-2015