Past 24 Hours Pollutant Concentration Summary

Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2019-07-21 03:0047.71.06.0-23.812.7
2019-07-21 02:0048.30.96.0-27.514.1
2019-07-21 01:0061.40.98.4-23.411.2
2019-07-21 00:0055.50.76.4-12.77.9
2019-07-20 23:0053.70.75.1-12.19.8
2019-07-20 22:0053.52.44.7-22.117.1
2019-07-20 21:0062.72.36.8-24.115.7
2019-07-20 20:0082.81.110.5-17.310.5
2019-07-20 19:0058.84.04.8-15.411.4
2019-07-20 18:0052.711.84.2-17.413.8
2019-07-20 17:0058.814.34.8-18.610.4
2019-07-20 16:0059.811.65.1-19.79.3
2019-07-20 15:0057.213.44.5-20.212.7
2019-07-20 14:0063.314.64.9-28.216.9
2019-07-20 13:0066.911.85.7-33.016.7
2019-07-20 12:0066.18.86.1-32.115.0
2019-07-20 11:0062.310.57.4-28.114.4
2019-07-20 10:0066.34.68.5-22.112.1
2019-07-20 09:0067.42.28.3-20.111.7
2019-07-20 08:0059.43.16.5-21.213.0
2019-07-20 07:0053.31.06.1-25.315.0
2019-07-20 06:0045.24.25.8-23.917.9
2019-07-20 05:0052.20.27.3-23.917.1
2019-07-20 04:0056.10.57.8-26.014.5
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:03:07 21-07-2019