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Past 24 Hours Pollutant Concentration Summary

Southern
Date TimeNO2O3SO2COPM10PM2.5
2022-01-19 10:0040.540.21.0764.915.811.5
2022-01-19 09:0042.420.52.0887.016.410.5
2022-01-19 08:0038.215.61.7952.019.07.8
2022-01-19 07:0028.816.01.2890.920.110.9
2022-01-19 06:0032.815.51.2896.222.913.6
2022-01-19 05:0035.713.31.1906.927.713.2
2022-01-19 04:0041.311.91.3937.327.012.3
2022-01-19 03:0047.511.51.5953.935.321.6
2022-01-19 02:0052.511.71.6987.839.626.8
2022-01-19 01:0056.912.01.6992.439.422.4
2022-01-19 00:0062.37.21.61,057.943.822.5
2022-01-18 23:0065.16.41.71,118.844.523.4
2022-01-18 22:0066.29.51.61,084.942.626.2
2022-01-18 21:0072.710.11.81,091.339.322.6
2022-01-18 20:0075.88.11.71,088.540.219.8
2022-01-18 19:0075.55.12.11,065.438.022.4
2022-01-18 18:0066.914.31.51,040.935.830.5
2022-01-18 17:0054.930.61.2979.432.525.2
2022-01-18 16:0046.141.41.0959.233.520.1
2022-01-18 15:0046.543.11.6920.820.015.7
2022-01-18 14:0057.726.91.8926.110.18.6
2022-01-18 13:0040.751.21.0875.17.35.6
2022-01-18 12:0024.459.00.7832.76.53.9
2022-01-18 11:0029.248.70.6838.67.86.6
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.