Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2018-02-23 04:00----0.5-
2018-02-23 03:0019.915.82.41,157.55.1-
2018-02-23 02:0026.410.32.61,200.42.2-
2018-02-23 01:0029.39.52.81,211.31.61.2
2018-02-23 00:0031.29.02.81,243.91.5-
2018-02-22 23:0030.69.62.81,238.96.43.5
2018-02-22 22:0034.08.12.81,269.42.60.2
2018-02-22 21:0036.76.52.81,288.35.45.2
2018-02-22 20:0038.67.52.91,319.06.1-
2018-02-22 19:0038.37.83.11,298.13.2-
2018-02-22 18:0040.18.83.81,306.42.7-
2018-02-22 17:00----2.2-
2018-02-22 16:0034.312.01.11,241.31.8-
2018-02-22 15:0034.911.41.21,230.62.7-
2018-02-22 14:0033.115.50.81,190.78.8-
2018-02-22 13:0036.919.11.31,240.06.8-
2018-02-22 12:0039.123.51.01,195.710.4-
2018-02-22 11:0036.228.41.21,135.72.2-
2018-02-22 10:0043.930.11.11,089.63.0-
2018-02-22 09:0050.735.50.91,053.28.2-
2018-02-22 08:0054.229.21.11,048.719.414.7
2018-02-22 07:0044.141.31.3982.526.220.5
2018-02-22 06:0019.960.11.4947.329.825.7
2018-02-22 05:0016.862.41.3915.720.915.4
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:04:05 23-02-2018