Pollutant and AQHI Distribution

(At 2015-07-03 01:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 7.2 57.4 9.9 23.5 11.3 3
Eastern 18.9 47.5 2.9 19.7 7 3
Kwun Tong 62.8 19.4 6.1 19.7 14.4 3
Sham Shui Po 44.5 28.9 6.5 23.1 11.3 3
Kwai Chung 63.2 18.2 10.1 28 13 3
Tsuen Wan 59.8 10.9 19.7 566.4 20 6.8 3
Yuen Long 24.9 32.6 6 490.3 23.5 7.5 2
Tuen Mun 35.6 22.3 9.6 592.2 23 13.9 2
Tung Chung 3.7 63.8 2.3 427.5 20.4 7.6 3
Tai Po 41.9 18.4 5.3 21.7 9.2 3
Sha Tin 50.6 20.4 3.1 21.3 9.7 3
Tap Mun 10.6 46.1 4.7 669.1 22.2 12.2 2

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 48.5 16 7.8 487.1 22.5 7.6 3
Central 33.7 35.5 2.7 431.6 19.4 7.1 3
Mong Kok 70.7 9.1 4.4 542.2 27.1 13.6 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:01:06 03-07-2015