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Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2022-06-29 11:0019.734.44.2-7.65.5
2022-06-29 10:0018.928.13.5-5.83.8
2022-06-29 09:0017.525.03.4-5.43.3
2022-06-29 08:0020.720.63.4-6.75.2
2022-06-29 07:0021.221.53.5-4.42.9
2022-06-29 06:0041.610.55.8-6.63.9
2022-06-29 05:0025.224.54.3-4.32.4
2022-06-29 04:006.143.63.1-3.61.8
2022-06-29 03:003.751.83.1-4.33.6
2022-06-29 02:005.955.33.2-2.32.1
2022-06-29 01:0010.949.53.3-3.1-
2022-06-29 00:0015.742.63.4-4.6-
2022-06-28 23:0012.947.73.6-3.6-
2022-06-28 22:0012.649.83.0-4.74.4
2022-06-28 21:0018.557.53.5-7.16.2
2022-06-28 20:0021.168.23.7-9.88.8
2022-06-28 19:0040.947.44.2-7.86.1
2022-06-28 18:0031.942.94.3-6.24.3
2022-06-28 17:0028.840.44.8-8.66.2
2022-06-28 16:0027.149.65.3-7.25.0
2022-06-28 15:0024.444.65.3-4.43.0
2022-06-28 14:0022.137.73.9-5.24.6
2022-06-28 13:0031.733.17.1-5.03.5
2022-06-28 12:0036.429.66.8-7.45.2
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.