Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2019-02-22 19:00172.34.511.01,609.761.337.5
2019-02-22 18:00170.74.810.61,486.158.733.5
2019-02-22 17:00134.84.59.81,520.751.431.9
2019-02-22 16:00140.05.08.41,454.550.329.3
2019-02-22 15:00117.45.18.71,603.259.434.6
2019-02-22 14:00100.44.68.51,572.646.229.3
2019-02-22 13:0086.94.79.61,570.742.626.9
2019-02-22 12:0080.43.810.51,645.137.122.3
2019-02-22 11:0057.93.38.71,579.039.525.9
2019-02-22 10:0060.02.810.21,654.839.127.3
2019-02-22 09:0056.22.39.01,559.431.422.1
2019-02-22 08:0040.91.96.71,432.226.321.0
2019-02-22 07:0034.81.55.21,321.419.916.4
2019-02-22 06:0036.51.55.01,258.820.315.5
2019-02-22 05:0037.71.55.61,264.918.413.9
2019-02-22 04:0044.01.46.01,260.115.712.6
2019-02-22 03:0052.01.77.11,319.219.014.7
2019-02-22 02:0054.51.57.91,313.730.520.6
2019-02-22 01:0065.83.66.31,175.552.629.9
2019-02-22 00:0076.96.54.91,023.051.833.1
2019-02-21 23:0074.49.74.21,038.756.034.6
2019-02-21 22:0091.22.45.51,178.255.635.6
2019-02-21 21:0096.34.45.21,313.547.734.3
2019-02-21 20:0087.012.54.41,196.141.632.1
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:19:07 22-02-2019