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Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2017-11-21 21:00125.03.17.31,334.369.649.9
2017-11-21 20:00107.215.03.1541.951.136.3
2017-11-21 19:00105.114.03.7456.343.028.9
2017-11-21 18:0094.216.92.1417.045.628.4
2017-11-21 17:00102.99.75.3519.944.127.0
2017-11-21 16:00102.66.56.1531.743.728.3
2017-11-21 15:0092.74.85.4634.436.424.9
2017-11-21 14:0083.07.85.7601.634.223.5
2017-11-21 13:0070.74.75.8635.329.818.3
2017-11-21 12:0078.55.95.1629.737.222.0
2017-11-21 11:0069.42.86.6649.740.725.6
2017-11-21 10:0068.94.15.5583.432.322.2
2017-11-21 09:0083.91.010.8590.134.724.9
2017-11-21 08:0059.11.07.6471.625.317.5
2017-11-21 07:0047.62.14.1742.016.910.3
2017-11-21 06:0034.57.91.7365.923.116.4
2017-11-21 05:0025.414.21.51,286.722.615.7
2017-11-21 04:0026.414.31.6518.419.913.2
2017-11-21 03:0030.810.11.0534.920.815.5
2017-11-21 02:0035.97.21.2387.725.118.7
2017-11-21 01:0060.60.83.6690.526.719.2
2017-11-21 00:0071.80.65.5726.633.223.8
2017-11-20 23:0096.81.09.1896.740.329.1
2017-11-20 22:00113.91.39.9978.043.129.7
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:21:06 21-11-2017