Pollutant and AQHI Distribution

(At 2014-04-24 09:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 67.6 44.7 1.1 - 73.2 36.7 4
Eastern 73 48.8 1.3 - 68.8 - 5
Kwun Tong 38.4 72.9 3.4 - 98.4 45.3 5
Sham Shui Po 89.8 35.2 7.2 - 79 50.7 5
Kwai Chung 102.3 29.5 4 - 66.1 44.3 5
Tsuen Wan 56.5 56.8 6.8 788.3 - - 5
Yuen Long 49.7 59.1 5.1 692.4 46.5 37.8 4
Tuen Mun 57 48.8 5.3 547.2 58 40 4
Tung Chung 39.8 66.9 8.8 453.3 50 26.8 4
Tai Po 44.9 58 3.2 - 62.9 39.2 4
Sha Tin 32.7 80.6 5.3 - 63.7 35.4 5
Tap Mun 3.4 108.2 9 539.5 56.4 36.3 5

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 92.5 34.4 2.3 599.6 92.2 55.3 5
Central 138.3 14.3 3.8 1051 81.2 40 5
Mong Kok 140.4 9.1 4.4 903.6 89.5 50.5 5


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:09:06 24-04-2014