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Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2024-04-29 23:0043.627.210.2347.415.510.0
2024-04-29 22:0043.528.510.8298.615.29.8
2024-04-29 21:0045.927.713.6305.414.08.7
2024-04-29 20:0047.727.913.6319.914.28.8
2024-04-29 19:0052.227.313.3336.915.610.3
2024-04-29 18:0047.531.79.9321.513.68.5
2024-04-29 17:0044.737.59.7312.613.17.8
2024-04-29 16:0040.642.48.3300.316.711.9
2024-04-29 15:0036.447.08.7296.916.411.8
2024-04-29 14:0040.342.310.6307.717.512.4
2024-04-29 13:0040.341.58.2318.617.812.5
2024-04-29 12:0042.338.87.4308.316.611.1
2024-04-29 11:0045.835.18.2319.519.912.8
2024-04-29 10:0060.926.38.0468.821.514.1
2024-04-29 09:0056.727.87.0510.918.011.5
2024-04-29 08:0042.436.36.0448.813.46.7
2024-04-29 07:0030.447.05.7339.515.28.2
2024-04-29 06:0017.260.85.6287.910.03.5
2024-04-29 05:0011.867.25.6290.110.34.2
2024-04-29 04:0010.371.35.7259.311.25.2
2024-04-29 03:0010.375.15.8227.211.25.2
2024-04-29 02:0011.377.85.4269.112.15.9
2024-04-29 01:0015.483.85.5313.513.07.2
2024-04-29 00:0023.182.45.4354.513.98.5
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: 23:07 29-04-2024