Pollutant and AQHI Distribution

(At 2017-02-22 02:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 15.6 73.6 4.2 17.3 15.3 3
Eastern 23.7 76.4 1.8 16.8 10.8 4
Kwun Tong 14.4 79.2 3.7 16.1 9.1 3
Sham Shui Po 28.6 63.1 4.9 5.2 4.9 3
Kwai Chung 20.8 68.6 1.8 16.2 - 3
Tsuen Wan 19.2 70.9 9.3 483.6 8.5 7.9 3
Tseung Kwan O 11.7 83.8 5.6 688.1 18.5 16.9 4
Yuen Long 21 63.5 7.3 581.9 15.7 9.7 3
Tuen Mun 30.1 41.7 3.3 698 14.9 13 3
Tung Chung 10.4 63.8 6.4 476.2 - - 3
Tai Po 23.2 67.6 1.3 14.2 11.6 3
Sha Tin 12.7 75.5 4.8 3.8 2.9 3
Tap Mun 7 83.1 7.8 877.9 19.1 13.7 3

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 67.3 32.9 4.3 750 20.7 17.2 4
Central 21.7 73.7 1.4 542.4 0.7 - 3
Mong Kok 48.6 41.4 1.3 680.3 11 10.1 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:02:08 22-02-2017