Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2019-02-22 20:0066.737.82.6824.952.636.3
2019-02-22 19:00148.88.410.01,286.769.847.5
2019-02-22 18:00163.03.711.71,401.452.935.0
2019-02-22 17:00136.13.710.61,382.564.941.6
2019-02-22 16:00125.36.97.71,404.756.934.3
2019-02-22 15:00109.79.97.41,262.362.039.9
2019-02-22 14:00117.53.612.11,448.559.041.5
2019-02-22 13:0099.94.312.61,439.149.033.8
2019-02-22 12:0091.73.612.41,433.849.531.3
2019-02-22 11:0077.73.011.51,456.347.628.6
2019-02-22 10:0070.02.711.51,419.140.028.3
2019-02-22 09:0072.72.812.71,353.233.624.0
2019-02-22 08:0054.82.58.01,226.628.220.9
2019-02-22 07:0044.42.45.51,517.022.918.3
2019-02-22 06:0039.02.33.61,165.619.914.3
2019-02-22 05:0039.92.04.21,217.317.613.3
2019-02-22 04:0044.12.14.5947.014.711.5
2019-02-22 03:0054.92.06.41,148.721.415.2
2019-02-22 02:0056.92.15.41,353.430.320.5
2019-02-22 01:0065.16.33.91,139.855.636.7
2019-02-22 00:0053.314.21.7692.262.340.7
2019-02-21 23:0072.710.33.3873.455.637.4
2019-02-21 22:0078.510.12.7885.867.150.0
2019-02-21 21:0090.99.94.51,088.266.948.5
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