Pollutant and AQHI Distribution

(At 2014-10-25 22:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 38.4 83.7 5.1 - 56.9 33.2 5
Eastern 52.5 74.5 4.2 - 45.5 26.5 5
Kwun Tong 35.7 93.3 11.6 - 58.5 36.5 5
Sham Shui Po 68 63.6 8.6 - 62.6 41.8 5
Kwai Chung 93.6 54.1 9.3 - 51 32.1 5
Tsuen Wan 45.9 85 9.9 594.7 49.5 31.1 5
Yuen Long 59.8 55.9 6.7 904.6 50 34.5 4
Tuen Mun 86 25.8 8.4 803.1 - - 4
Tung Chung 74.5 42.5 11.5 755.5 37.4 22.5 4
Tai Po 64.3 73.8 1.2 - 49.5 30.9 5
Sha Tin 31.8 102.7 6.1 - 46.8 25.4 5
Tap Mun 11.4 78.1 4.6 688.8 54.1 18.2 4

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 65.5 61 1.5 595.5 54 32.5 5
Central 142.8 25.9 4.8 1016.6 54.1 32.4 6
Mong Kok 101.9 32.4 5.8 1137.8 61.2 39.5 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:22:06 25-10-2014