Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2020-01-19 21:0086.95.87.31,378.360.541.4
2020-01-19 20:0071.812.34.11,313.453.836.0
2020-01-19 19:0068.618.73.81,321.458.938.7
2020-01-19 18:0063.829.44.11,234.571.846.7
2020-01-19 17:0069.932.94.51,236.171.245.1
2020-01-19 16:0081.826.35.21,248.665.738.9
2020-01-19 15:0083.223.65.71,260.170.743.9
2020-01-19 14:0093.714.97.61,320.860.637.8
2020-01-19 13:0079.234.64.51,241.144.726.3
2020-01-19 12:0071.830.65.51,360.838.822.6
2020-01-19 11:0062.331.64.11,334.439.923.5
2020-01-19 10:0052.929.43.61,390.841.622.8
2020-01-19 09:0060.927.63.91,051.930.716.1
2020-01-19 08:0059.140.83.4940.332.918.6
2020-01-19 07:0044.552.02.8909.126.813.6
2020-01-19 06:0035.261.52.5911.123.413.4
2020-01-19 05:0026.572.12.2887.722.613.6
2020-01-19 04:0027.972.82.3895.518.810.9
2020-01-19 03:0025.875.02.3876.420.811.6
2020-01-19 02:0042.261.92.7938.722.010.4
2020-01-19 01:0048.760.92.4944.523.813.0
2020-01-19 00:0067.948.32.9950.427.514.8
2020-01-18 23:0079.942.43.91,020.228.215.9
2020-01-18 22:0074.846.33.61,084.425.015.2
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:21:07 19-01-2020