Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2019-07-21 04:0043.58.45.01,012.721.411.4
2019-07-21 03:0055.14.25.91,101.223.915.3
2019-07-21 02:0064.33.26.91,000.721.613.8
2019-07-21 01:0072.43.27.9968.626.819.4
2019-07-21 00:0076.23.37.81,075.438.829.3
2019-07-20 23:0081.33.88.71,126.834.826.9
2019-07-20 22:0083.24.08.21,141.747.139.5
2019-07-20 21:00100.54.912.51,260.139.833.3
2019-07-20 20:0096.24.610.21,353.354.142.9
2019-07-20 19:0094.24.09.21,252.738.129.6
2019-07-20 18:0090.24.37.1998.534.924.1
2019-07-20 17:00101.24.311.11,326.352.136.3
2019-07-20 16:0097.15.19.01,355.040.427.7
2019-07-20 15:00105.35.68.01,122.739.326.7
2019-07-20 14:00108.16.67.2900.931.317.5
2019-07-20 13:0074.312.46.9844.133.719.3
2019-07-20 12:0067.515.66.0782.836.722.4
2019-07-20 11:0069.414.85.6806.236.122.4
2019-07-20 10:0061.719.95.5757.233.019.0
2019-07-20 09:0063.513.85.8716.931.519.4
2019-07-20 08:0075.010.66.3735.524.313.9
2019-07-20 07:0050.018.24.6705.322.914.0
2019-07-20 06:0042.019.04.7697.316.29.8
2019-07-20 05:0030.022.15.11,011.921.115.1
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:04:07 21-07-2019