Past 24 Hours Pollutant Concentration Summary

Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2019-02-22 19:00149.128.115.2-46.625.5
2019-02-22 18:00122.954.813.7-46.022.9
2019-02-22 17:00123.744.812.6-46.619.1
2019-02-22 16:00122.417.612.2-46.721.5
2019-02-22 15:00102.913.812.8-38.318.1
2019-02-22 14:0076.022.510.2-30.4-
2019-02-22 13:0053.735.18.6-15.9-
2019-02-22 12:0045.315.19.5-18.3-
2019-02-22 11:0047.26.811.6-17.2-
2019-02-22 10:0050.13.312.4-20.39.7
2019-02-22 09:0047.73.012.6-21.010.1
2019-02-22 08:0047.63.011.4-22.810.9
2019-02-22 07:0037.92.59.2-19.08.7
2019-02-22 06:0036.02.48.8-13.56.3
2019-02-22 05:0036.82.19.2-15.67.0
2019-02-22 04:0038.92.19.9-14.35.8
2019-02-22 03:0041.02.410.0-11.05.6
2019-02-22 02:0046.12.09.8-9.26.7
2019-02-22 01:0059.08.68.6-25.4-
2019-02-22 00:0039.330.67.4-22.5-
2019-02-21 23:0030.537.67.1-22.214.1
2019-02-21 22:0045.236.97.4-26.517.8
2019-02-21 21:0046.341.37.4-26.218.1
2019-02-21 20:0054.537.47.3-25.019.1
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