(At 2022-06-28 04:00)

General Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Kwun Tong26.728.45.45.832
Sham Shui Po---2.4-2
Kwai Chung37.312.412.26.35.52
Tsuen Wan31.15.19.12428.46.12
Tseung Kwan O2128.50.8388.29.97.42
Yuen Long27.215.45.1409.82.7-2
Tuen Mun16.322.82.6330.463.12
Tung Chung5.821.73.2245.92-1
Tai Po12.
Sha Tin14.924.874.54.12
Tap Mun125.17.3409.12.21.11

Roadside Stations
Pollutant Concentrations(μg/m3)
Station NamesNO2O3SO2COPM10PM2.5AQHI
Causeway Bay-23.4--9.86.72*
Mong Kok27.217.73.2633.84.93.92


(1) Time shown is in Hong Kong time.

(2) NO2 - nitrogen dioxide, O3 - ozone,
     SO2 - sulphur dioxide, CO - carbon monoxide,
     PM10 - respirable suspended particulates,
     PM2.5 - fine suspended particulates

(3) Concentration shown is in µg/m3.

(4) The Pollutant concentration and AQHI information are based on real time data taken directly from EPD's Air Quality Monitoring Network.

(5) In case of equipment or station suspension due to repair and maintenance, the data collection for calculation of AQHI at station will be affected, the data of similar stations will then be adopted. Such AQHI will be shown with an asterisk.

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Last revision date: 04:07 28-06-2022