Welcome to Environmental Protection Department Air Quality Health Index Website


Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2023-09-23 11:0016.652.66.6328.114.68.2
2023-09-23 10:0022.339.06.8373.716.310.1
2023-09-23 09:0031.231.46.7420.216.210.2
2023-09-23 08:0033.420.75.7486.215.211.6
2023-09-23 07:0024.822.85.4431.814.712.1
2023-09-23 06:0023.521.15.2429.811.99.7
2023-09-23 05:0011.527.45.2378.012.410.1
2023-09-23 04:0010.346.25.3348.213.210.1
2023-09-23 03:0013.458.35.5376.012.09.2
2023-09-23 02:0012.074.25.9395.716.112.6
2023-09-23 01:00----17.112.8
2023-09-23 00:0021.573.95.7394.219.114.6
2023-09-22 23:0018.186.75.8460.618.914.3
2023-09-22 22:0020.882.05.8433.921.817.2
2023-09-22 21:0018.693.55.8411.921.316.8
2023-09-22 20:0014.5110.26.2359.920.315.5
2023-09-22 19:0023.5100.36.6375.929.224.7
2023-09-22 18:0028.795.37.0434.919.313.9
2023-09-22 17:0033.584.38.9376.722.013.7
2023-09-22 16:0045.491.37.4448.427.516.0
2023-09-22 15:0049.092.67.6408.223.813.6
2023-09-22 14:0041.179.57.7414.918.310.1
2023-09-22 13:0044.277.37.6401.221.711.9
2023-09-22 12:0052.567.47.6417.624.713.8
Remarks:

(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 is based on real time data taken directly from EPD's Air Quality Monitoring Network.

Mobile Version | Desktop Version
Last revision date: 11:07 23-09-2023