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Past 24 Hours Pollutant Concentration Summary

Kwai Chung
Date TimeNO2O3SO2COPM10PM2.5
2024-04-20 16:0071.211.47.6-28.117.4
2024-04-20 15:0064.117.46.1-25.015.3
2024-04-20 14:0061.616.64.2-24.915.8
2024-04-20 13:0056.324.94.6-23.613.6
2024-04-20 12:0056.523.84.1-21.712.3
2024-04-20 11:0053.523.74.2-22.914.2
2024-04-20 10:0056.116.93.2-24.917.0
2024-04-20 09:0056.615.92.7-22.614.4
2024-04-20 08:0055.212.51.9-19.112.2
2024-04-20 07:0044.219.21.3-17.211.3
2024-04-20 06:0036.623.41.1-16.010.7
2024-04-20 05:0022.737.21.1-16.410.8
2024-04-20 04:0022.935.41.2-14.18.3
2024-04-20 03:0022.636.21.2-15.59.4
2024-04-20 02:0025.633.31.1-14.88.6
2024-04-20 01:0030.630.41.1-15.08.8
2024-04-20 00:0040.120.01.2-15.19.3
2024-04-19 23:0040.920.31.3-14.89.4
2024-04-19 22:0043.121.21.5-17.510.3
2024-04-19 21:0047.420.21.5-21.013.3
2024-04-19 20:0055.914.71.7-19.111.2
2024-04-19 19:0057.412.42.2-20.512.4
2024-04-19 18:0066.213.42.6-19.511.4
2024-04-19 17:0055.420.12.1-19.711.8
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.