Pollutant and AQHI Distribution

(At 2014-07-30 04:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 12.8 65.1 5.9 - 25.1 16.9 3
Eastern 25.3 52.8 4.7 - 22.6 15.1 3
Kwun Tong 15.3 64.4 11.4 - 17.9 17.5 3
Sham Shui Po 20.5 60 10.7 - 27.9 26.4 3
Kwai Chung 17 46.9 9.6 - 22.9 15.4 3
Tsuen Wan 13.4 52.2 10.1 302.2 23.9 19.8 3
Yuen Long 45.6 13.5 16.6 407.3 35.1 25.7 3
Tuen Mun 31.3 47.8 25.5 252.2 27.2 19.1 3
Tung Chung 18.1 37.2 9.3 414.8 28.9 21.4 3
Tai Po 24.1 50.7 2.3 - 23.4 16.8 3
Sha Tin 34.2 24.2 6.1 - 21.4 14.1 3
Tap Mun 3.9 25.9 12 591.1 21.7 14.9 2

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 64.1 17.4 5.6 436.6 32.4 22.8 3
Central 51.1 28 5 385.7 24.5 19.2 3
Mong Kok 39.1 38.5 4.7 724.8 24.7 17.3 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:04:06 30-07-2014