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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-11-17 22:0077.627.04.4-37.924.3
2019-11-17 21:0077.034.75.4-39.925.1
2019-11-17 20:0076.445.64.6-38.022.9
2019-11-17 19:0077.845.84.0-37.121.5
2019-11-17 18:0078.156.15.1-34.818.8
2019-11-17 17:0049.982.84.8-32.218.4
2019-11-17 16:0029.3109.04.2-36.119.8
2019-11-17 15:0054.684.24.3-39.220.2
2019-11-17 14:0049.383.84.2-37.020.7
2019-11-17 13:0030.793.03.8-33.718.8
2019-11-17 12:0023.192.93.7-32.518.6
2019-11-17 11:0023.384.63.8-29.515.6
2019-11-17 10:0022.676.93.2-30.516.1
2019-11-17 09:0029.363.93.2-31.617.0
2019-11-17 08:0025.167.92.9-32.117.9
2019-11-17 07:0019.875.73.2-32.419.1
2019-11-17 06:0013.780.43.6-30.617.3
2019-11-17 05:0013.783.63.3-28.915.6
2019-11-17 04:0015.685.33.2-28.715.6
2019-11-17 03:0018.687.53.4-31.217.5
2019-11-17 02:0028.779.43.4-36.922.7
2019-11-17 01:0031.779.63.3-34.220.6
2019-11-17 00:0017.2103.83.1-34.020.1
2019-11-16 23:0022.2103.93.6-35.121.0
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:22:07 17-11-2019