Pollutant and AQHI Distribution

(At 2014-10-22 04:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 98 0.3 43.5 - 48.9 33.3 4
Eastern 106.5 8.9 37.5 - 56.4 39.1 5
Kwun Tong 112.2 2.5 56.8 - 66.5 52.5 5
Sham Shui Po 105.5 2.9 49.1 - 67.3 56.6 5
Kwai Chung 98.1 13.2 25.5 - 50.1 37.5 4
Tsuen Wan 104.1 4.6 39.1 518.4 51.1 34.9 4
Yuen Long 88.5 1.4 14.3 853.5 42.5 28.9 3
Tuen Mun 81.9 6.4 33.7 721.5 54.6 36 4
Tung Chung 69.5 11.6 15.4 877.7 40.2 22.1 3
Tai Po 81 20.5 6 - 40.1 27.7 4
Sha Tin 93.2 6.8 13.4 - 48.7 36.2 4
Tap Mun 47.1 11 11.9 840.5 28 15.4 2

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 103.7 0.3 26.7 536.9 57.5 41.3 4
Central 129.7 1.5 42.3 795 40.9 28 5
Mong Kok 117.9 2.1 60 1122.9 59.7 43.8 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:04:06 22-10-2014