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Past 24 Hours Pollutant Concentration Summary

North
Date TimeNO2O3SO2COPM10PM2.5
2021-12-04 08:0071.910.24.5712.521.012.5
2021-12-04 07:0070.010.64.0801.318.910.5
2021-12-04 06:0047.523.53.3516.117.59.5
2021-12-04 05:0027.649.03.2478.017.510.1
2021-12-04 04:0043.436.83.2518.217.39.6
2021-12-04 03:0031.841.02.8585.819.913.3
2021-12-04 02:0044.222.92.7766.425.916.7
2021-12-04 01:0064.012.83.5591.133.115.8
2021-12-04 00:0074.59.15.1794.438.618.4
2021-12-03 23:0096.25.66.11,274.939.616.3
2021-12-03 22:00103.36.67.01,381.544.019.3
2021-12-03 21:00104.65.26.51,062.943.617.9
2021-12-03 20:00112.25.27.31,371.438.19.6
2021-12-03 19:00130.47.75.91,021.734.39.4
2021-12-03 18:0080.346.33.4880.133.510.8
2021-12-03 17:0050.275.43.1595.936.210.3
2021-12-03 16:0037.385.33.1576.438.812.2
2021-12-03 15:0037.485.43.2554.339.310.9
2021-12-03 14:0039.683.63.2434.941.311.7
2021-12-03 13:0035.882.63.7446.641.910.9
2021-12-03 12:0039.676.24.1598.536.98.5
2021-12-03 11:0033.574.34.2438.232.310.6
2021-12-03 10:0032.669.84.8438.130.19.1
2021-12-03 09:0052.750.55.8543.429.28.4
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.