Welcome to Environmental Protection Department Air Quality Health Index Website


Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2022-10-06 01:0011.890.32.5-23.012.0
2022-10-06 00:0011.1-2.3-21.411.5
2022-10-05 23:0016.591.42.2-17.07.4
2022-10-05 22:0014.794.92.4-19.29.1
2022-10-05 21:0021.090.92.6-19.18.4
2022-10-05 20:0022.288.92.6-15.34.1
2022-10-05 19:0032.579.62.6-15.54.5
2022-10-05 18:0032.577.42.4-18.86.8
2022-10-05 17:0030.473.72.3-25.714.8
2022-10-05 16:0023.379.72.3-25.616.1
2022-10-05 15:0024.985.52.5-22.714.7
2022-10-05 14:0025.890.32.6-21.214.8
2022-10-05 13:0026.887.22.4-19.312.5
2022-10-05 12:0023.594.73.1-26.219.0
2022-10-05 11:0033.077.32.7-23.115.0
2022-10-05 10:0040.572.72.8-30.823.2
2022-10-05 09:0037.866.42.9-26.118.0
2022-10-05 08:0039.255.23.0-29.322.3
2022-10-05 07:0017.280.93.0-25.218.5
2022-10-05 06:0010.286.63.1-19.812.9
2022-10-05 05:006.790.43.0-26.921.2
2022-10-05 04:0012.196.83.6-31.023.5
2022-10-05 03:0087.019.08.3-29.320.9
2022-10-05 02:0073.829.97.3-33.624.2
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: 01:07 06-10-2022