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Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2024-05-27 02:0032.722.42.8224.08.47.4
2024-05-27 01:0041.621.13.0213.415.813.5
2024-05-27 00:0051.716.63.4235.431.927.4
2024-05-26 23:0061.39.73.6222.724.820.8
2024-05-26 22:0066.57.33.9275.919.517.2
2024-05-26 21:0051.019.13.5352.219.616.9
2024-05-26 20:0050.019.33.1329.715.113.2
2024-05-26 19:0052.019.43.6316.213.310.1
2024-05-26 18:0041.521.93.3212.311.59.8
2024-05-26 17:0046.817.24.6278.09.97.9
2024-05-26 16:0036.019.44.1155.713.111.3
2024-05-26 15:0046.022.64.2280.821.818.8
2024-05-26 14:0050.316.84.1359.921.517.2
2024-05-26 13:0072.78.15.8402.421.114.6
2024-05-26 12:0068.48.54.4607.918.113.9
2024-05-26 11:0059.09.93.8233.916.513.5
2024-05-26 10:0050.114.63.3235.314.911.7
2024-05-26 09:0051.111.73.6214.014.310.9
2024-05-26 08:0045.711.53.3168.016.713.1
2024-05-26 07:0040.413.53.2188.614.711.0
2024-05-26 06:0032.220.92.7164.811.97.9
2024-05-26 05:0034.420.42.6157.813.39.3
2024-05-26 04:0033.323.42.7191.614.310.4
2024-05-26 03:00-29.8--13.510.1
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.