Pollutant and AQHI Distribution

(At 2014-12-23 03:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 11.4 88.1 14.1 - 99.6 67.4 5
Eastern 20 89.8 12.2 - 98.8 58.6 5
Kwun Tong 24.3 114.2 17.7 - 120.5 74.5 6
Sham Shui Po 31.4 116.4 14.4 - 77.3 61.1 6
Kwai Chung 35.3 102.3 19.4 - 76.1 51.1 5
Tsuen Wan 33.1 97.7 19.2 916.5 81.6 55.1 5
Yuen Long 92.8 26.4 26.1 837.5 86.4 63.8 5
Tuen Mun - - - - - - 5
Tung Chung 38.9 98.5 23.4 725.6 88.3 54.6 5
Tai Po 85.6 20.2 0.9 - 63.1 47.3 4
Sha Tin 34.6 97.2 17 - 83.1 55.9 5
Tap Mun 19.8 124.9 16.5 634 110.5 75.2 6

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 89.4 66.1 10.2 899.7 110.6 77.7 7
Central 51.2 106 15.5 772.9 92 61.1 6
Mong Kok 67.2 75.9 14.3 1315.9 101.6 71.6 6


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:03:06 23-12-2014