Welcome to Environmental Protection Department Air Quality Health Index Website


Central
Date TimeNO2O3SO2COPM10PM2.5
2022-10-07 09:0066.432.43.01,001.417.010.2
2022-10-07 08:0053.240.32.91,016.914.77.6
2022-10-07 07:0025.359.32.2945.017.09.9
2022-10-07 06:0024.162.62.1962.213.49.0
2022-10-07 05:0019.169.52.4942.917.410.0
2022-10-07 04:0014.878.21.8894.717.88.2
2022-10-07 03:0017.674.82.1917.918.27.3
2022-10-07 02:0018.178.32.0895.516.38.3
2022-10-07 01:0025.473.72.2922.418.910.0
2022-10-07 00:0030.268.62.3930.519.510.5
2022-10-06 23:0034.666.02.3936.121.211.8
2022-10-06 22:0042.671.02.51,044.326.516.3
2022-10-06 21:0054.967.12.81,142.726.416.6
2022-10-06 20:0075.351.93.71,147.926.316.8
2022-10-06 19:0080.154.93.81,135.626.917.7
2022-10-06 18:0081.348.34.41,183.722.313.5
2022-10-06 17:0072.151.83.41,116.320.112.2
2022-10-06 16:0077.546.13.71,108.020.612.3
2022-10-06 15:0083.641.33.91,113.024.415.8
2022-10-06 14:0062.153.93.41,071.221.013.2
2022-10-06 13:0072.046.93.81,101.221.412.7
2022-10-06 12:0061.248.03.71,087.721.512.4
2022-10-06 11:0073.836.43.81,067.622.514.3
2022-10-06 10:0062.035.93.1985.323.715.3
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.

Last revision date: 09:28 07-10-2022