Past 24 Hours Pollutant Concentration Summary

Eastern
Date TimeNO2O3SO2COPM10PM2.5
2017-11-21 21:0071.438.53.2-36.222.0
2017-11-21 20:0055.961.81.5-28.026.5
2017-11-21 19:0061.057.80.7-26.926.7
2017-11-21 18:0059.154.50.7-24.017.0
2017-11-21 17:0053.758.32.2-26.717.9
2017-11-21 16:0047.659.12.7-27.216.0
2017-11-21 15:0048.447.70.9-20.19.7
2017-11-21 14:0034.850.00.8-15.910.5
2017-11-21 13:0036.537.60.8-16.07.3
2017-11-21 12:0040.930.00.7-19.28.3
2017-11-21 11:0034.429.30.8-19.410.8
2017-11-21 10:0037.923.20.8-14.97.4
2017-11-21 09:0037.221.80.6-14.38.7
2017-11-21 08:0035.321.23.0-18.913.8
2017-11-21 07:0031.622.52.3-24.918.2
2017-11-21 06:0020.630.21.1-25.414.1
2017-11-21 05:0017.633.61.1-21.26.9
2017-11-21 04:0017.734.01.1-18.97.0
2017-11-21 03:0018.832.51.0-19.110.3
2017-11-21 02:0022.131.20.7-18.813.4
2017-11-21 01:0030.927.40.6-12.69.7
2017-11-21 00:0033.925.20.7-10.47.9
2017-11-20 23:0031.726.30.9-18.810.8
2017-11-20 22:0042.018.30.7-23.411.5
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:21:06 21-11-2017