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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2022-01-27 06:0012.898.2--19.115.6
2022-01-27 05:0011.596.51.9-22.116.9
2022-01-27 04:00-90.71.9-23.616.9
2022-01-27 03:0014.791.62.1-24.416.6
2022-01-27 02:00-92.7--26.416.8
2022-01-27 01:0025.691.92.5-26.418.5
2022-01-27 00:0028.5-2.3-30.721.9
2022-01-26 23:0033.195.91.6-29.821.3
2022-01-26 22:0032.695.31.8-34.626.4
2022-01-26 21:0041.584.42.2-35.826.4
2022-01-26 20:0073.153.32.6-36.525.5
2022-01-26 19:00113.917.53.1-31.622.0
2022-01-26 18:0079.340.32.5-23.016.9
2022-01-26 17:0045.869.72.3-24.017.0
2022-01-26 16:0045.774.92.9-28.920.3
2022-01-26 15:0041.080.42.8-29.321.1
2022-01-26 14:0039.677.92.6-33.825.1
2022-01-26 13:0036.374.21.9-35.926.3
2022-01-26 12:0044.653.21.7-33.624.1
2022-01-26 11:0043.348.62.5-34.524.7
2022-01-26 10:0041.945.92.9-34.025.0
2022-01-26 09:0043.846.12.5-31.222.4
2022-01-26 08:0031.959.32.4-32.021.6
2022-01-26 07:0020.275.42.4-35.721.7
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.