Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2024-04-20 17:0014.253.02.5-21.812.8
2024-04-20 16:0014.754.72.2-24.914.7
2024-04-20 15:0018.653.42.1-25.716.1
2024-04-20 14:0021.150.32.2-21.413.7
2024-04-20 13:0013.958.32.1-21.212.9
2024-04-20 12:0017.555.12.1-19.911.4
2024-04-20 11:0022.745.52.1-19.211.3
2024-04-20 10:0021.144.42.2-16.89.7
2024-04-20 09:0021.342.22.5-13.97.8
2024-04-20 08:0016.145.12.3-13.47.4
2024-04-20 07:0010.249.92.2-15.09.3
2024-04-20 06:006.952.32.1-16.410.5
2024-04-20 05:004.556.72.0-15.79.6
2024-04-20 04:008.551.42.1-13.37.5
2024-04-20 03:006.253.12.0-13.67.6
2024-04-20 02:008.551.72.0-16.810.3
2024-04-20 01:00-53.3--14.88.5
2024-04-20 00:008.350.31.7-15.49.1
2024-04-19 23:0014.044.41.6-14.38.7
2024-04-19 22:0010.947.91.6-16.710.5
2024-04-19 21:009.051.81.6-17.710.9
2024-04-19 20:009.952.61.8-18.812.1
2024-04-19 19:0016.547.21.9-17.810.7
2024-04-19 18:0021.648.02.0-17.09.9
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(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: 17:07 20-04-2024