Welcome to Environmental Protection Department Air Quality Health Index Website


Central
Date TimeNO2O3SO2COPM10PM2.5
2022-09-27 09:0052.928.03.7920.021.412.2
2022-09-27 08:0040.135.03.5932.720.210.7
2022-09-27 07:0022.246.92.8891.821.712.6
2022-09-27 06:0015.255.22.7884.215.88.4
2022-09-27 05:008.259.32.3835.415.17.4
2022-09-27 04:008.866.62.5879.419.711.2
2022-09-27 03:008.262.52.2893.317.28.7
2022-09-27 02:0013.861.93.0975.018.99.5
2022-09-27 01:0020.570.02.5921.921.011.4
2022-09-27 00:0031.268.82.9935.318.89.0
2022-09-26 23:0031.263.52.8981.619.79.7
2022-09-26 22:0031.365.82.2989.920.811.4
2022-09-26 21:0042.463.72.81,023.626.915.3
2022-09-26 20:0054.365.52.91,037.227.715.4
2022-09-26 19:0085.458.13.61,074.432.818.1
2022-09-26 18:0079.281.64.11,102.240.522.8
2022-09-26 17:0086.981.14.21,103.6--
2022-09-26 16:00-79.64.21,092.3--
2022-09-26 15:00111.158.55.21,131.5--
2022-09-26 14:00119.552.15.51,114.736.822.7
2022-09-26 13:0083.380.64.71,143.036.121.5
2022-09-26 12:0083.975.24.51,109.238.622.3
2022-09-26 11:0093.172.54.21,103.243.823.6
2022-09-26 10:00106.353.44.81,104.043.322.9
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: 09:07 27-09-2022