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 50.9 PM2.5 24.9
SO2 5.4 PM10 37.7
O3 92.1
Air Quality Monitoring Stations Info
Kwai Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 75.3 PM2.5 27.5
SO2 3.6 PM10 45.2
O3 83.9
Air Quality Monitoring Stations Info
Sham Shui Po AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 75.2 PM2.5 -
SO2 2.6 PM10 -
O3 69.3
Air Quality Monitoring Stations Info
Tai Po AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 64.1 PM2.5 30.4
SO2 1.8 PM10 44.2
O3 102.1
Air Quality Monitoring Stations Info
Tap Mun AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 11.1 PM2.5 35.3
SO2 7.0 PM10 60.2
O3 135.4
Air Quality Monitoring Stations Info
Tsuen Wan AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 71.9 PM2.5 32.1
SO2 9.6 PM10 45.7
O3 88.0
Air Quality Monitoring Stations Info
Tung Chung AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 73.8 PM2.5 38.8
SO2 6.6 PM10 65.5
O3 87.8
Air Quality Monitoring Stations Info
Yuen Long AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 55.5 PM2.5 34.0
SO2 8.1 PM10 67.1
O3 104.6
Air Quality Monitoring Stations Info
Causeway Bay AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 140.6 PM2.5 36.9
SO2 10.7 PM10 57.0
O3 16.6
Air Quality Monitoring Stations Info
Central AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 115.3 PM2.5 23.3
SO2 5.6 PM10 28.9
O3 40.2
Air Quality Monitoring Stations Info
Sha Tin AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 26.1 PM2.5 28.1
SO2 5.2 PM10 37.2
O3 120.6
Air Quality Monitoring Stations Info
Kwun Tong AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 71.9 PM2.5 31.0
SO2 4.2 PM10 52.9
O3 78.8
Air Quality Monitoring Stations Info
Tseung Kwan O AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 17.6 PM2.5 24.1
SO2 7.0 PM10 40.7
O3 136.1
Air Quality Monitoring Stations Info
Eastern AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 48.4 PM2.5 20.3
SO2 2.6 PM10 44.0
O3 112.1
Air Quality Monitoring Stations Info
Mong Kok AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 95.4 PM2.5 -
SO2 3.2 PM10 -
O3 49.6
Air Quality Monitoring Stations Info
Tuen Mun AQHI 6
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 - PM2.5 43.9
SO2 - PM10 71.8
O3 -
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:09:06 22-11-2017