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Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2021-12-02 08:0083.617.15.9357.641.219.4
2021-12-02 07:0075.119.64.5283.229.812.9
2021-12-02 06:0042.646.43.5199.324.811.0
2021-12-02 05:0049.238.12.9223.324.08.8
2021-12-02 04:00-36.3--25.710.5
2021-12-02 03:0064.429.93.7253.825.09.1
2021-12-02 02:0057.439.94.3315.731.914.0
2021-12-02 01:0081.320.16.1382.231.810.3
2021-12-02 00:0073.127.35.5614.442.118.8
2021-12-01 23:0087.919.07.2489.245.922.7
2021-12-01 22:0098.417.07.8507.841.018.1
2021-12-01 21:0099.516.17.5519.642.117.6
2021-12-01 20:00108.59.89.3592.254.624.9
2021-12-01 19:00123.010.110.7676.357.625.7
2021-12-01 18:00133.08.010.1617.153.520.8
2021-12-01 17:00125.110.27.9493.351.520.0
2021-12-01 16:00129.77.47.8591.658.426.4
2021-12-01 15:00135.79.49.5576.246.319.1
2021-12-01 14:00125.311.610.6636.640.317.1
2021-12-01 13:00115.512.57.9471.643.120.3
2021-12-01 12:00103.512.37.2502.238.913.5
2021-12-01 11:0092.716.35.5378.842.817.6
2021-12-01 10:00104.113.57.5670.334.812.3
2021-12-01 09:0090.814.05.8395.735.715.0
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.