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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2022-05-27 07:0015.152.56.1-10.96.7
2022-05-27 06:005.063.35.8-13.68.6
2022-05-27 05:006.165.85.8-11.07.8
2022-05-27 04:005.065.75.8-12.88.5
2022-05-27 03:006.160.36.5-11.28.0
2022-05-27 02:00-58.8--9.97.5
2022-05-27 01:0015.552.86.2-8.36.4
2022-05-27 00:009.956.35.6-6.34.9
2022-05-26 23:0014.058.35.4-7.26.3
2022-05-26 22:0011.863.75.5-8.96.8
2022-05-26 21:0013.965.75.5-8.56.8
2022-05-26 20:009.670.45.5-9.27.8
2022-05-26 19:0015.266.95.8-13.29.2
2022-05-26 18:0046.239.16.1-13.49.6
2022-05-26 17:0037.551.55.9-13.08.5
2022-05-26 16:0015.960.45.9-15.49.2
2022-05-26 15:0037.949.86.1-16.411.3
2022-05-26 14:0038.855.85.6-15.813.0
2022-05-26 13:0037.257.95.5-15.112.3
2022-05-26 12:0044.642.06.1-14.710.9
2022-05-26 11:0045.631.26.1-11.58.8
2022-05-26 10:0045.629.86.1-13.712.4
2022-05-26 09:0044.724.55.9-13.011.5
2022-05-26 08:0037.927.56.4-9.28.2
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.