Pollutant and AQHI Distribution

(At 2014-09-20 07:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 33.6 32.7 6.7 - 29.6 12.6 3
Eastern 25 42.6 3.6 - 43.1 32.9 3
Kwun Tong 26.8 45.4 11.1 - 46.7 37.7 3
Sham Shui Po 37 37.4 35.1 - 37.4 36.7 3
Kwai Chung 35.3 36.6 7.7 - 35.6 27.4 3
Tsuen Wan 26 44.5 8.2 977.8 35.7 25.8 3
Yuen Long 31.4 36 6.1 839.3 45.4 27.7 3
Tuen Mun 18.6 48 7.2 741.2 49.9 35.7 3
Tung Chung 17.1 46.7 7.7 792.1 36.9 25.8 3
Tai Po 28.3 50.7 0.3 - 32 23.3 3
Sha Tin 26.5 47.6 7.2 - 32.2 23.7 3
Tap Mun 7.7 56.3 5.5 1071.4 51.8 42.4 3

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 67.1 19.4 5.6 683.9 37 26.4 3
Central 82.8 16.3 5.2 765.9 35.8 21.6 3
Mong Kok 48.4 26 5.7 774.8 35.8 27.1 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:07:06 20-09-2014