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Past 24 Hours Pollutant Concentration Summary

Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2024-04-23 02:0058.64.41.3513.415.911.1
2024-04-23 01:0057.32.70.6505.217.813.0
2024-04-23 00:0048.410.81.1483.915.112.0
2024-04-22 23:0046.725.61.4508.617.613.8
2024-04-22 22:0071.20.01.9520.217.413.2
2024-04-22 21:0071.51.21.3558.613.310.1
2024-04-22 20:0026.240.50.5505.711.29.2
2024-04-22 19:0021.949.41.2428.69.46.8
2024-04-22 18:0032.838.51.3503.813.711.0
2024-04-22 17:0058.720.81.9530.419.615.3
2024-04-22 16:0067.112.01.8497.89.54.8
2024-04-22 15:00----15.011.1
2024-04-22 14:0062.825.5-572.517.412.4
2024-04-22 13:00-10.25.0616.220.012.3
2024-04-22 12:0084.36.15.1621.917.311.3
2024-04-22 11:0079.08.34.6582.518.613.5
2024-04-22 10:0059.98.33.8543.825.421.3
2024-04-22 09:0056.56.03.3604.334.231.1
2024-04-22 08:0054.00.42.4619.418.914.4
2024-04-22 07:0055.03.61.4509.413.210.6
2024-04-22 06:0038.632.01.1490.212.910.9
2024-04-22 05:0037.334.21.0473.111.48.0
2024-04-22 04:0057.014.20.6513.912.09.0
2024-04-22 03:0066.93.51.4500.913.710.8
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.