Air Quality Monitoring Network of Hong Kong

Air Quality Monitoring Stations Info
Central/Western AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 58.1 PM2.5 28.1
SO2 4.4 PM10 62.6
O3 67.6
Air Quality Monitoring Stations Info
Kwai Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 78.9 PM2.5 27.5
SO2 1.8 PM10 71.0
O3 47.9
Air Quality Monitoring Stations Info
Sham Shui Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 90.5 PM2.5 31.7
SO2 3.8 PM10 60.0
O3 41.8
Air Quality Monitoring Stations Info
Tai Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 28.2 PM2.5 24.5
SO2 1.0 PM10 54.0
O3 105.8
Air Quality Monitoring Stations Info
Tap Mun AQHI -
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 4.5 PM2.5 20.9
SO2 7.7 PM10 66.4
O3 134.3
Air Quality Monitoring Stations Info
Tsuen Wan AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 82.6 PM2.5 25.2
SO2 4.8 PM10 57.8
O3 55.2
Air Quality Monitoring Stations Info
Tung Chung AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 61.8 PM2.5 21.3
SO2 23.1 PM10 57.3
O3 43.9
Air Quality Monitoring Stations Info
Yuen Long AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 63.1 PM2.5 26.7
SO2 8.1 PM10 66.4
O3 50.0
Air Quality Monitoring Stations Info
Causeway Bay AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 159.1 PM2.5 44.4
SO2 13.9 PM10 87.7
O3 8.7
Air Quality Monitoring Stations Info
Central AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 114.8 PM2.5 28.8
SO2 6.3 PM10 60.0
O3 30.6
Air Quality Monitoring Stations Info
Sha Tin AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 25.8 PM2.5 22.9
SO2 5.1 PM10 58.4
O3 103.5
Air Quality Monitoring Stations Info
Kwun Tong AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 31.9 PM2.5 28.0
SO2 0.8 PM10 80.0
O3 -
Air Quality Monitoring Stations Info
Tseung Kwan O AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 16.7 PM2.5 -
SO2 3.4 PM10 -
O3 115.1
Air Quality Monitoring Stations Info
Eastern AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 49.0 PM2.5 23.7
SO2 2.2 PM10 81.6
O3 96.9
Air Quality Monitoring Stations Info
Mong Kok AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 130.9 PM2.5 32.6
SO2 4.3 PM10 65.7
O3 21.1
Air Quality Monitoring Stations Info
Tuen Mun AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 90.1 PM2.5 31.0
SO2 12.6 PM10 79.1
O3 31.8
General Station
Roadside Station


The air quality monitoring network in Hong Kong operated by the Environmental Protection Department (EPD) comprises 16 fixed monitoring stations to meet the following objectives:

  1. To understand air pollution problems in order that cost-effective policies and solutions can be developed;
  2. To assess to what extent the standards and targets are being achieved or violated;
  3. To assist the assessment of public's exposure to air pollution;
  4. To provide public information on current and forecast air quality.

The network is designed and operated to meet the highest international standards. It is certified by the Hong Kong Laboratory Accreditation Scheme (HOKLAS) and has gained high regard from experts of overseas and the United Nations' Environmental Programme.

 

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Last revision date:04:05 23-02-2018