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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2020-02-18 13:0020.578.22.3-13.46.8
2020-02-18 12:0025.669.12.3-16.910.3
2020-02-18 11:0028.960.12.2-16.59.7
2020-02-18 10:0046.044.12.4-19.112.1
2020-02-18 09:0059.527.82.7-17.010.9
2020-02-18 08:0041.440.32.1-13.69.1
2020-02-18 07:0024.755.11.9-15.111.1
2020-02-18 06:0017.863.12.2-13.610.0
2020-02-18 05:0011.269.72.0-11.88.3
2020-02-18 04:0012.970.02.1-12.07.7
2020-02-18 03:0015.767.92.1-14.710.1
2020-02-18 02:0019.765.32.2-13.18.3
2020-02-18 01:0023.461.12.0-15.810.8
2020-02-18 00:0023.460.91.8-16.111.1
2020-02-17 23:00----15.110.4
2020-02-17 22:0027.861.61.7-17.112.1
2020-02-17 21:0031.458.31.8-16.911.8
2020-02-17 20:0038.754.52.0-16.09.9
2020-02-17 19:0039.157.02.1-18.311.6
2020-02-17 18:0040.858.32.2-17.410.5
2020-02-17 17:0034.467.32.1-17.510.8
2020-02-17 16:0037.863.32.1-20.013.3
2020-02-17 15:0032.067.12.1-19.313.5
2020-02-17 14:0028.967.11.9-18.613.2
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.