Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2020-01-19 21:0047.912.04.81,085.849.935.1
2020-01-19 20:0044.325.05.11,071.154.838.6
2020-01-19 19:0051.124.45.01,056.555.237.3
2020-01-19 18:0042.940.55.11,000.357.437.4
2020-01-19 17:0044.045.95.0978.654.736.4
2020-01-19 16:0038.952.15.0942.652.933.9
2020-01-19 15:0033.052.15.2919.855.935.7
2020-01-19 14:0033.246.65.1903.347.530.5
2020-01-19 13:0031.747.15.3848.739.024.8
2020-01-19 12:0028.045.45.2862.540.324.5
2020-01-19 11:0028.937.94.9859.939.824.8
2020-01-19 10:0039.731.24.6918.337.124.6
2020-01-19 09:0040.129.04.4878.230.319.8
2020-01-19 08:0032.142.54.4774.424.514.9
2020-01-19 07:0030.651.74.2730.124.515.6
2020-01-19 06:0018.165.34.4690.119.112.2
2020-01-19 05:0012.374.64.4648.720.213.9
2020-01-19 04:0013.574.84.3641.218.412.1
2020-01-19 03:0016.271.64.4669.821.014.4
2020-01-19 02:0017.472.34.4678.420.613.5
2020-01-19 01:0027.065.74.4696.322.916.6
2020-01-19 00:0035.659.84.3769.421.214.5
2020-01-18 23:0041.156.44.6824.924.217.6
2020-01-18 22:0041.158.44.6839.827.921.2
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:21:07 19-01-2020