Pollutant and AQHI Distribution

(At 2016-02-12 02:00)


General Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Central/Western 33.6 41 12.2 42.7 27 3
Eastern - - - 14.9 - 3
Kwun Tong 29.2 54.5 3.2 27.8 22.7 3
Sham Shui Po 41.9 35.7 6 19.3 - 3
Kwai Chung 35.3 43.5 4.2 25 20.7 3
Tsuen Wan 47.3 26.5 6.1 795.8 29.5 22.3 3
Yuen Long 51.5 6 9.7 763.9 39.6 31.9 3
Tuen Mun 76.7 6.8 15.2 721.1 35 34 3
Tung Chung 3.6 55.3 6.9 752.2 27 16.2 3
Tai Po 14.8 54.8 2.9 29.2 19.1 3
Sha Tin 39.4 39 1.7 34.9 27.2 3
Tap Mun - - - - - - -

Roadside Stations
Pollutant Concentrations(μg/m3)
Station Names NO2 O3 SO2 CO PM10 PM2.5 AQHI
Causeway Bay 71.9 9.3 4 1511.2 41.2 31.4 4
Central 43.6 32.2 3.1 611.7 37.3 23.7 3
Mong Kok 54.3 24.1 0.9 1029.6 47.4 35.6 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.
(4) Owing to re-roofing and renovation of the building where the Tap Mun monitoring station is located, its operation will be temporarily suspended from 30 November 2015 to 29 February 2016. We apologize for any inconvenience caused.

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Last revision date:02:06 12-02-2016