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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2022-10-06 00:0017.578.08.0409.718.69.7
2022-10-05 23:0022.676.28.0454.920.512.7
2022-10-05 22:0023.476.28.5471.323.014.9
2022-10-05 21:0031.069.28.5484.721.512.8
2022-10-05 20:0040.557.28.5510.922.213.2
2022-10-05 19:0044.054.28.5515.821.212.6
2022-10-05 18:0040.156.88.5450.920.811.9
2022-10-05 17:0031.261.68.4439.421.012.4
2022-10-05 16:0028.070.68.4426.421.213.4
2022-10-05 15:0029.369.98.7456.422.315.9
2022-10-05 14:0032.173.98.7470.622.218.1
2022-10-05 13:0030.475.68.7460.220.216.0
2022-10-05 12:0029.874.68.7453.717.212.4
2022-10-05 11:0029.672.18.8493.225.319.1
2022-10-05 10:0047.651.89.2546.130.424.0
2022-10-05 09:0042.855.89.2522.926.320.9
2022-10-05 08:0046.130.79.1579.428.022.9
2022-10-05 07:0027.243.18.7479.125.921.7
2022-10-05 06:0018.555.88.5422.223.618.6
2022-10-05 05:0011.964.58.5422.125.320.0
2022-10-05 04:0012.664.98.1432.127.422.4
2022-10-05 03:0018.451.08.5467.229.023.1
2022-10-05 02:0025.135.98.7516.930.624.6
2022-10-05 01:0028.932.88.7529.431.625.6
Remarks:

(1) Time shown is in Hong Kong time.

(2) NO2 - nitrogen dioxide, O3 - ozone,
     SO2 - sulphur dioxide, CO - carbon monoxide,
     PM10 - respirable suspended particulates,
     PM2.5 - fine suspended particulates

(3) Concentration shown is in µg/m3.

(4) The pollutant concentration is based on real time data taken directly from EPD's Air Quality Monitoring Network.