Past 24 Hours Pollutant Concentration Summary

Mong Kok
Date TimeNO2O3SO2COPM10PM2.5
2019-02-22 20:00142.210.76.61,322.361.246.0
2019-02-22 19:00180.95.19.91,382.552.939.1
2019-02-22 18:00158.58.78.61,298.242.230.0
2019-02-22 17:00143.07.58.11,154.151.934.1
2019-02-22 16:00117.25.86.21,236.754.233.9
2019-02-22 15:00114.36.56.71,268.050.531.6
2019-02-22 14:00105.83.88.21,260.739.425.6
2019-02-22 13:0094.73.18.51,255.533.721.8
2019-02-22 12:0067.34.67.11,177.524.016.1
2019-02-22 11:0047.46.73.91,049.423.215.6
2019-02-22 10:0040.24.73.91,080.524.818.7
2019-02-22 09:0044.72.84.61,140.022.418.5
2019-02-22 08:0047.01.85.71,214.324.119.9
2019-02-22 07:0041.31.35.51,117.619.115.9
2019-02-22 06:0039.10.95.21,141.219.314.7
2019-02-22 05:0040.01.15.61,300.217.613.3
2019-02-22 04:0043.10.94.71,032.015.011.5
2019-02-22 03:0047.00.84.91,066.517.113.1
2019-02-22 02:0051.40.75.41,274.728.420.2
2019-02-22 01:0067.43.03.3956.038.327.4
2019-02-22 00:0070.010.42.4878.743.731.0
2019-02-21 23:0077.07.82.6895.248.333.9
2019-02-21 22:0082.58.32.9921.555.139.1
2019-02-21 21:0082.214.62.8957.159.844.3
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:20:07 22-02-2019