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Past 24 Hours Pollutant Concentration Summary

North
Date TimeNO2O3SO2COPM10PM2.5
2024-04-20 18:0029.953.31.2296.321.216.6
2024-04-20 17:0024.540.21.5350.017.717.3
2024-04-20 16:0023.740.71.4302.615.6-
2024-04-20 15:0022.144.31.3255.819.316.8
2024-04-20 14:0013.855.91.4219.421.717.6
2024-04-20 13:0015.455.91.5226.221.617.7
2024-04-20 12:0017.751.31.3249.121.016.4
2024-04-20 11:0013.854.41.4243.319.716.0
2024-04-20 10:0016.648.41.3266.118.115.2
2024-04-20 09:0016.346.71.7275.617.613.3
2024-04-20 08:0014.346.71.6256.016.113.4
2024-04-20 07:0012.846.01.6268.412.8-
2024-04-20 06:0011.446.91.8264.613.412.2
2024-04-20 05:008.948.81.6264.615.213.2
2024-04-20 04:007.950.42.2228.514.213.5
2024-04-20 03:008.251.31.6234.917.316.7
2024-04-20 02:007.152.81.2248.119.616.6
2024-04-20 01:0010.848.91.4250.217.115.3
2024-04-20 00:0015.844.12.4287.515.312.6
2024-04-19 23:0013.547.22.2230.315.712.0
2024-04-19 22:0017.842.62.4320.115.7-
2024-04-19 21:0018.942.32.3374.117.915.6
2024-04-19 20:0021.841.42.4267.521.515.1
2024-04-19 19:0022.146.12.5305.719.114.7
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.