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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-08-24 09:0055.453.39.3-62.547.2
2019-08-24 08:0063.730.56.0-45.334.6
2019-08-24 07:0075.94.15.5-41.631.7
2019-08-24 06:0068.54.64.1-27.320.5
2019-08-24 05:0047.622.83.2-20.115.7
2019-08-24 04:0064.77.74.1-17.513.1
2019-08-24 03:0078.80.07.0-19.314.7
2019-08-24 02:0084.10.15.9-29.020.5
2019-08-24 01:0099.10.06.9-35.021.5
2019-08-24 00:00101.40.75.1-28.617.7
2019-08-23 23:0088.210.54.4-18.013.7
2019-08-23 22:0070.124.92.9-19.814.6
2019-08-23 21:0084.918.12.8-21.715.2
2019-08-23 20:0061.937.72.6-26.918.9
2019-08-23 19:0093.539.93.7-32.822.7
2019-08-23 18:0067.268.73.5-30.021.3
2019-08-23 17:0059.977.23.2-34.726.5
2019-08-23 16:0052.9100.13.7-38.328.1
2019-08-23 15:0047.7108.34.0-39.029.6
2019-08-23 14:0054.579.54.9-34.327.4
2019-08-23 13:0046.671.95.1-38.728.0
2019-08-23 12:0051.458.74.1-45.629.7
2019-08-23 11:0064.935.04.5-72.835.6
2019-08-23 10:0092.911.36.4-39.529.9
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.