Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2017-11-24 00:0078.19.55.9778.069.149.2
2017-11-23 23:00133.92.611.51,023.386.868.7
2017-11-23 22:00109.35.17.6951.192.269.5
2017-11-23 21:00116.65.37.61,083.193.667.5
2017-11-23 20:00123.46.18.81,061.698.170.1
2017-11-23 19:00157.83.712.9964.286.961.7
2017-11-23 18:00187.02.414.3937.669.645.5
2017-11-23 17:00135.76.08.6830.964.040.3
2017-11-23 16:00154.25.38.8903.773.751.4
2017-11-23 15:00130.09.47.7873.580.458.7
2017-11-23 14:00155.44.411.7916.766.744.1
2017-11-23 13:00145.38.69.3754.263.343.5
2017-11-23 12:00139.35.110.1722.065.743.1
2017-11-23 11:00116.15.27.0728.952.934.3
2017-11-23 10:00120.32.59.2748.952.237.7
2017-11-23 09:00101.82.87.3608.648.635.2
2017-11-23 08:00116.73.06.4572.444.532.0
2017-11-23 07:0070.915.03.6487.237.628.6
2017-11-23 06:0052.223.83.01,119.437.428.9
2017-11-23 05:0044.919.32.51,154.135.526.7
2017-11-23 04:0036.225.02.11,053.731.823.1
2017-11-23 03:0049.215.01.8703.429.221.0
2017-11-23 02:0053.012.21.8701.033.523.5
2017-11-23 01:0067.25.93.11,050.138.325.0
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:00:06 24-11-2017