Pollutant and AQHI Distribution

(At 2017-04-26 19:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 113.6 3.3 8.5 73 56.1 4
Eastern 93.6 38.5 5.7 83.4 65 5
Kwun Tong 78.4 15.7 5 72 67 4
Sham Shui Po 115.3 2.2 8 69.2 54.3 4
Kwai Chung 84.6 2.8 6.2 46.9 37.4 3
Tsuen Wan 123.7 2 16 1273.4 65.6 49.5 5
Tseung Kwan O 33.8 82.7 10.4 1048 75.3 59.3 5
Yuen Long 66.8 11.8 11.4 871.9 37.4 27.3 3
Tuen Mun 77.2 7.5 15.4 971.8 48 33.9 3
Tung Chung 45.6 34.7 9.8 479 20.8 15.2 3
Tai Po 63 52 4.9 54.8 46.3 4
Sha Tin 71 20.4 6.3 39.9 32.5 3
Tap Mun 14.7 87.6 11.7 494.3 92.1 53.3 5

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 124.1 3.5 9.6 1337.1 - - 5
Central 141 2.8 11.2 986.2 92.9 73.7 5
Mong Kok 135.1 1.7 5 1163.6 75.9 64.6 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:19:08 26-04-2017