Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2019-10-19 17:0052.1156.110.1493.063.842.8
2019-10-19 16:0057.9200.912.8544.064.842.5
2019-10-19 15:0063.2152.011.1528.452.336.5
2019-10-19 14:0035.7145.810.6512.345.633.1
2019-10-19 13:0040.4125.510.6512.943.931.8
2019-10-19 12:0037.4113.410.8513.341.728.6
2019-10-19 11:0020.9124.111.3496.236.021.4
2019-10-19 10:0048.488.311.5588.141.127.6
2019-10-19 09:0063.163.812.2639.140.627.7
2019-10-19 08:0053.458.811.5603.953.037.1
2019-10-19 07:0041.162.59.7525.040.627.2
2019-10-19 06:0012.482.08.0406.630.821.5
2019-10-19 05:009.488.27.8413.428.818.8
2019-10-19 04:004.5106.18.0407.726.315.1
2019-10-19 03:007.9109.47.9440.641.130.3
2019-10-19 02:0018.596.08.4520.150.136.1
2019-10-19 01:0025.379.08.7512.651.734.0
2019-10-19 00:0033.483.78.9516.458.440.7
2019-10-18 23:0036.586.08.9534.946.732.1
2019-10-18 22:0035.891.98.4515.854.641.0
2019-10-18 21:0051.785.08.3547.655.041.6
2019-10-18 20:0055.193.68.3516.249.231.8
2019-10-18 19:0047.5131.29.0464.857.138.8
2019-10-18 18:0047.6165.59.5423.755.936.9
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:17:07 19-10-2019