Air Quality Monitoring Network of Hong Kong

Air Quality Monitoring Stations Info
Central/Western AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 60.7 PM2.5 33.6
SO2 1.9 PM10 51.2
O3 58.9
Air Quality Monitoring Stations Info
Kwai Chung AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 70.2 PM2.5 21.9
SO2 4.2 PM10 29.7
O3 47.9
Air Quality Monitoring Stations Info
Sham Shui Po AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 69.4 PM2.5 33.7
SO2 3.5 PM10 57.8
O3 54.0
Air Quality Monitoring Stations Info
Tai Po AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 37.4 PM2.5 27.7
SO2 3.6 PM10 42.2
O3 86.3
Air Quality Monitoring Stations Info
Tap Mun AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 8.6 PM2.5 30.8
SO2 6.1 PM10 49.0
O3 116.2
Air Quality Monitoring Stations Info
Tsuen Wan AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 86.4 PM2.5 26.1
SO2 6.2 PM10 43.2
O3 30.1
Air Quality Monitoring Stations Info
Tung Chung AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 81.7 PM2.5 31.0
SO2 7.8 PM10 53.2
O3 46.5
Air Quality Monitoring Stations Info
Yuen Long AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 52.4 PM2.5 27.7
SO2 5.2 PM10 46.3
O3 72.7
Air Quality Monitoring Stations Info
Causeway Bay AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 76.2 PM2.5 42.0
SO2 2.8 PM10 66.3
O3 44.5
Air Quality Monitoring Stations Info
Central AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 104.0 PM2.5 35.2
SO2 4.5 PM10 57.9
O3 30.9
Air Quality Monitoring Stations Info
Sha Tin AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 15.8 PM2.5 -
SO2 5.2 PM10 22.0
O3 91.8
Air Quality Monitoring Stations Info
Kwun Tong AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 51.1 PM2.5 31.0
SO2 6.6 PM10 53.0
O3 68.4
Air Quality Monitoring Stations Info
Tseung Kwan O AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 15.9 PM2.5 33.0
SO2 1.6 PM10 56.5
O3 108.7
Air Quality Monitoring Stations Info
Eastern AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 53.9 PM2.5 25.0
SO2 0.4 PM10 42.1
O3 75.1
Air Quality Monitoring Stations Info
Mong Kok AQHI 5
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 117.8 PM2.5 43.8
SO2 3.5 PM10 64.0
O3 17.4
Air Quality Monitoring Stations Info
Tuen Mun AQHI 4
Past 24 hrsConcentration / AQHI
Hourly concentration (ug/m3)
NO2 42.6 PM2.5 28.1
SO2 5.8 PM10 50.0
O3 79.2
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:07:07 19-01-2020