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Past 24 Hours Pollutant Concentration Summary

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Causeway BayCentralMong Kok
Sha Tin
Date TimeNO2O3SO2COPM10PM2.5
2021-10-22 03:0011.547.62.6-5.64.9
2021-10-22 02:0015.246.02.3-6.64.5
2021-10-22 01:0017.146.81.7-10.86.6
2021-10-22 00:0017.648.92.4-10.55.8
2021-10-21 23:0017.552.12.7-11.65.5
2021-10-21 22:0018.552.82.3-13.05.8
2021-10-21 21:0022.249.72.3-13.74.8
2021-10-21 20:0027.246.72.6-17.78.0
2021-10-21 19:0030.245.42.8-16.95.5
2021-10-21 18:0028.846.53.5-16.43.4
2021-10-21 17:0030.544.93.4-21.85.5
2021-10-21 16:0033.641.13.8-28.39.4
2021-10-21 15:0036.639.64.2-28.48.6
2021-10-21 14:0033.855.14.2-30.411.6
2021-10-21 13:0034.652.34.4-30.612.9
2021-10-21 12:0038.651.64.5-19.69.4
2021-10-21 11:0045.440.34.2-18.58.1
2021-10-21 10:0050.233.54.3-15.36.6
2021-10-21 09:0051.420.04.0-20.111.9
2021-10-21 08:0044.86.94.7-15.89.9
2021-10-21 07:0037.56.84.4-11.36.6
2021-10-21 06:0029.314.13.2-11.36.2
2021-10-21 05:0024.722.03.8-15.79.5
2021-10-21 04:0023.226.83.0-11.96.9
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 22-10-2021