Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2019-05-20 02:0021.411.17.7393.123.09.9
2019-05-20 01:0022.313.07.5419.221.96.2
2019-05-20 00:0024.613.77.7434.819.27.0
2019-05-19 23:0029.310.07.5440.622.38.8
2019-05-19 22:0025.216.88.1448.122.38.7
2019-05-19 21:0036.87.38.6489.522.610.1
2019-05-19 20:0038.013.17.8508.723.710.7
2019-05-19 19:0039.616.17.8504.824.811.9
2019-05-19 18:0033.131.97.7510.525.813.1
2019-05-19 17:0031.338.27.5514.428.415.8
2019-05-19 16:0025.242.97.5505.029.115.9
2019-05-19 15:0020.649.87.4508.626.213.6
2019-05-19 14:0027.446.67.6531.327.314.5
2019-05-19 13:0034.042.07.3520.325.112.4
2019-05-19 12:0031.844.17.3513.024.612.9
2019-05-19 11:0022.849.67.5494.225.414.3
2019-05-19 10:0032.236.17.2518.126.716.0
2019-05-19 09:0023.937.77.6479.823.211.8
2019-05-19 08:0026.432.27.3498.722.311.1
2019-05-19 07:0024.730.17.2459.518.510.4
2019-05-19 06:0020.728.47.4427.118.811.4
2019-05-19 05:0014.529.57.3426.317.58.8
2019-05-19 04:0010.930.37.5423.127.510.9
2019-05-19 03:007.532.77.9432.020.210.3
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.

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Last revision date:02:07 20-05-2019