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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2021-03-03 16:0033.174.03.2-45.220.1
2021-03-03 15:0034.869.23.9-42.018.7
2021-03-03 14:0031.367.14.0-38.717.6
2021-03-03 13:0033.160.33.9-34.313.0
2021-03-03 12:0035.953.82.5-33.413.9
2021-03-03 11:0032.555.53.5-33.014.6
2021-03-03 10:0035.250.23.5-32.115.3
2021-03-03 09:0033.846.83.7-26.010.9
2021-03-03 08:0028.646.43.9-25.511.2
2021-03-03 07:0017.552.93.5-25.812.4
2021-03-03 06:0011.461.33.4-22.48.6
2021-03-03 05:0010.066.33.6-22.19.4
2021-03-03 04:00-63.8--18.47.3
2021-03-03 03:0011.264.02.9-20.88.7
2021-03-03 02:0013.064.62.9-23.810.0
2021-03-03 01:0015.467.72.9-25.810.5
2021-03-03 00:0016.772.72.9-26.110.4
2021-03-02 23:0022.071.73.0-27.513.6
2021-03-02 22:0025.274.83.1-30.416.9
2021-03-02 21:0024.779.03.0-26.812.6
2021-03-02 20:0034.978.53.7-20.010.0
2021-03-02 19:0035.982.94.1-16.58.2
2021-03-02 18:0038.086.13.9-22.212.2
2021-03-02 17:0036.193.53.8-26.315.4
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.