Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2018-02-23 04:0024.510.57.8-6.14.4
2018-02-23 03:0037.71.17.0-6.94.9
2018-02-23 02:0034.54.06.6-1.91.1
2018-02-23 01:0037.53.96.8-3.10.7
2018-02-23 00:0038.63.36.8-5.93.2
2018-02-22 23:0041.92.67.0-9.77.1
2018-02-22 22:0044.50.97.9-11.27.1
2018-02-22 21:0043.92.36.6-10.97.3
2018-02-22 20:0040.64.76.6-7.83.7
2018-02-22 19:0044.44.67.3-9.34.4
2018-02-22 18:0045.12.47.1-11.17.9
2018-02-22 17:0043.74.36.0-8.36.2
2018-02-22 16:0039.87.26.6-12.07.8
2018-02-22 15:0044.99.16.2-16.510.9
2018-02-22 14:0046.47.97.7-22.316.6
2018-02-22 13:0041.621.77.5-19.912.2
2018-02-22 12:0039.336.65.5-30.718.8
2018-02-22 11:0041.845.44.8-22.411.5
2018-02-22 10:0041.846.75.1-14.16.7
2018-02-22 09:0042.142.06.1-27.518.2
2018-02-22 08:0047.033.88.3-37.422.4
2018-02-22 07:0026.054.15.6-37.320.4
2018-02-22 06:0016.663.66.3-36.120.7
2018-02-22 05:0012.469.45.8-31.817.7
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.

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Last revision date:04:05 23-02-2018