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Past 24 Hours Pollutant Concentration Summary

Southern
Date TimeNO2O3SO2COPM10PM2.5
2021-12-02 08:0040.757.72.6326.932.511.2
2021-12-02 07:0031.763.12.5294.730.310.8
2021-12-02 06:0020.774.12.1284.130.89.8
2021-12-02 05:0014.682.31.9256.225.76.7
2021-12-02 04:0013.978.11.5258.323.99.7
2021-12-02 03:0014.676.01.2256.128.015.4
2021-12-02 02:0018.177.11.4259.232.115.4
2021-12-02 01:0022.574.11.5270.535.212.4
2021-12-02 00:0028.268.31.4292.836.211.4
2021-12-01 23:0029.674.11.7309.338.812.0
2021-12-01 22:0030.981.52.2295.442.19.1
2021-12-01 21:0037.478.02.7306.641.37.4
2021-12-01 20:0059.852.72.4378.942.311.2
2021-12-01 19:0055.765.52.0341.545.913.6
2021-12-01 18:0058.270.01.7337.672.143.5
2021-12-01 17:0055.679.51.6328.065.041.7
2021-12-01 16:0048.494.61.7326.737.316.6
2021-12-01 15:0044.790.51.1321.837.411.4
2021-12-01 14:0036.590.51.1304.238.37.0
2021-12-01 13:0032.983.71.2317.234.911.2
2021-12-01 12:0036.575.21.4306.932.114.7
2021-12-01 11:0035.568.71.2298.029.16.7
2021-12-01 10:0043.956.21.6316.031.79.1
2021-12-01 09:0038.258.81.3301.433.212.2
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.