Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2017-11-22 09:0050.58.57.3-25.013.5
2017-11-22 08:0044.18.17.5-26.316.9
2017-11-22 07:0039.99.66.9-25.616.0
2017-11-22 06:0041.810.37.1-26.015.7
2017-11-22 05:0040.513.87.3-31.520.1
2017-11-22 04:0051.06.68.2-33.520.8
2017-11-22 03:0047.512.77.6-33.321.1
2017-11-22 02:0051.913.97.9-44.927.2
2017-11-22 01:0067.54.99.9-56.231.3
2017-11-22 00:0068.86.49.2-68.339.0
2017-11-21 23:0080.14.89.4-63.735.6
2017-11-21 22:0079.311.88.7-59.334.5
2017-11-21 21:0097.512.67.0-43.225.5
2017-11-21 20:0083.123.06.3-22.613.9
2017-11-21 19:0068.938.75.7-35.120.1
2017-11-21 18:00101.412.16.8-50.227.4
2017-11-21 17:0091.918.510.5-42.124.5
2017-11-21 16:0073.919.49.2-27.617.8
2017-11-21 15:0056.726.25.9-22.315.6
2017-11-21 14:0036.036.15.1-20.115.1
2017-11-21 13:0033.527.45.1-18.812.8
2017-11-21 12:0037.818.26.0-23.914.9
2017-11-21 11:0046.37.27.1-26.616.0
2017-11-21 10:0044.54.87.8-24.414.2
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.

Last revision date:09:06 22-11-2017