Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-11-23 09:0037.448.94.1-19.914.6
2019-11-23 08:0031.854.33.8-20.614.5
2019-11-23 07:0026.662.33.8-20.014.1
2019-11-23 06:0017.578.74.2-23.217.0
2019-11-23 05:0017.579.34.9-22.416.0
2019-11-23 04:0020.077.85.3-20.915.4
2019-11-23 03:0022.874.65.6-20.515.1
2019-11-23 02:0027.071.45.4-22.817.3
2019-11-23 01:0032.074.85.4-23.916.6
2019-11-23 00:0034.683.55.5-27.118.5
2019-11-22 23:0041.886.15.4-31.721.9
2019-11-22 22:0056.575.95.6-31.621.3
2019-11-22 21:0050.678.95.0-25.516.8
2019-11-22 20:0049.677.54.9-23.515.1
2019-11-22 19:0040.684.85.2-25.915.6
2019-11-22 18:0041.495.56.0-35.721.2
2019-11-22 17:0083.278.18.0-44.524.7
2019-11-22 16:0086.083.89.2-45.126.3
2019-11-22 15:0088.467.89.2-47.228.0
2019-11-22 14:0090.152.69.4-46.626.2
2019-11-22 13:00103.435.310.0-52.024.7
2019-11-22 12:00108.926.411.1-51.424.7
2019-11-22 11:00108.623.810.4-57.730.5
2019-11-22 10:00107.012.610.3-46.928.5
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:09:07 23-11-2019