Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2017-11-23 01:0022.442.79.0475.423.412.4
2017-11-23 00:0032.432.69.1548.630.718.0
2017-11-22 23:0039.424.69.3620.629.514.6
2017-11-22 22:0043.821.210.2705.237.218.8
2017-11-22 21:0056.015.211.2797.342.422.9
2017-11-22 20:0060.014.711.7805.043.721.9
2017-11-22 19:0062.819.811.4798.345.520.8
2017-11-22 18:0059.335.211.8726.046.623.0
2017-11-22 17:0060.250.712.2702.047.525.0
2017-11-22 16:0054.057.212.0683.953.330.8
2017-11-22 15:0047.077.611.2644.255.032.2
2017-11-22 14:0052.589.810.8631.757.731.4
2017-11-22 13:0058.566.510.1663.247.823.4
2017-11-22 12:0050.535.99.2618.926.714.4
2017-11-22 11:0042.923.38.9634.618.49.9
2017-11-22 10:0042.418.39.0592.917.511.9
2017-11-22 09:0039.314.09.4609.916.610.5
2017-11-22 08:0037.69.69.4590.419.712.5
2017-11-22 07:0034.19.89.4555.322.313.5
2017-11-22 06:0027.615.59.3496.622.313.9
2017-11-22 05:0032.013.89.3518.126.816.2
2017-11-22 04:0035.214.510.0544.731.219.2
2017-11-22 03:0043.29.910.1612.837.726.3
2017-11-22 02:0042.913.010.3606.738.124.1
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.

Last revision date:01:06 23-11-2017