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Mong Kok
Date TimeNO2O3SO2COPM10PM2.5
2021-01-22 23:00129.25.515.61,595.370.854.0
2021-01-22 22:00127.25.613.81,633.566.551.1
2021-01-22 21:00129.85.814.01,534.261.246.0
2021-01-22 20:00129.75.814.81,513.951.938.3
2021-01-22 19:00146.15.815.41,463.850.635.0
2021-01-22 18:00156.66.114.01,332.248.828.9
2021-01-22 17:00158.69.412.91,163.056.737.5
2021-01-22 16:00161.213.010.61,127.563.439.0
2021-01-22 15:00152.410.212.21,230.676.752.1
2021-01-22 14:00165.510.413.71,248.390.166.3
2021-01-22 13:00152.110.114.91,284.693.570.8
2021-01-22 12:00145.39.316.71,287.2103.177.0
2021-01-22 11:00152.56.719.41,428.0113.581.9
2021-01-22 10:00144.05.521.11,638.7112.478.3
2021-01-22 09:00134.54.419.61,723.8102.871.6
2021-01-22 08:00125.44.816.31,592.999.272.8
2021-01-22 07:00119.95.712.61,563.8100.073.9
2021-01-22 06:00113.95.811.31,581.498.973.0
2021-01-22 05:00109.15.610.11,500.893.868.1
2021-01-22 04:00117.05.311.61,514.3109.479.5
2021-01-22 03:00125.0-12.51,560.6135.096.8
2021-01-22 02:00154.05.914.11,659.0149.1107.2
2021-01-22 01:00182.96.314.91,760.090.363.2
2021-01-22 00:00160.06.612.92,134.965.144.8
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: 23:07 22-01-2021