Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2018-12-18 22:00101.443.78.6695.963.630.3
2018-12-18 21:00109.742.88.6731.365.529.8
2018-12-18 20:00117.942.69.6734.167.531.1
2018-12-18 19:00113.847.39.8697.566.230.1
2018-12-18 18:00124.037.910.6681.667.133.0
2018-12-18 17:00123.141.611.1718.165.032.3
2018-12-18 16:00120.439.810.7676.362.132.6
2018-12-18 15:00136.231.313.0722.866.439.9
2018-12-18 14:00160.715.316.8741.956.734.3
2018-12-18 13:00129.020.913.0694.257.931.3
2018-12-18 12:00125.021.413.0813.964.331.7
2018-12-18 11:00107.918.711.8933.962.431.4
2018-12-18 10:00100.616.512.2787.257.030.0
2018-12-18 09:00124.66.117.9869.560.631.2
2018-12-18 08:0098.28.212.9962.352.629.6
2018-12-18 07:0082.511.69.7856.943.222.3
2018-12-18 06:0056.926.87.0763.836.419.0
2018-12-18 05:0066.320.26.8799.529.616.9
2018-12-18 04:0071.815.26.9884.929.417.7
2018-12-18 03:0078.98.07.6902.036.322.5
2018-12-18 02:0080.68.07.9972.443.226.5
2018-12-18 01:00102.93.311.51,049.149.229.1
2018-12-18 00:00116.93.013.01,065.155.431.1
2018-12-17 23:00120.53.514.11,080.757.132.6
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:22:07 18-12-2018