Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2019-07-21 03:0072.04.84.9908.034.315.8
2019-07-21 02:0085.04.97.5961.932.717.5
2019-07-21 01:0098.95.18.9965.331.520.5
2019-07-21 00:0084.75.05.81,066.826.716.2
2019-07-20 23:0084.54.75.2967.423.515.2
2019-07-20 22:0095.14.85.91,037.525.118.5
2019-07-20 21:0077.78.67.4870.923.919.2
2019-07-20 20:0098.95.07.91,334.631.921.2
2019-07-20 19:0095.74.96.41,195.521.916.2
2019-07-20 18:0089.35.64.61,064.724.717.2
2019-07-20 17:00107.85.56.51,169.730.522.2
2019-07-20 16:0095.06.43.71,047.724.118.7
2019-07-20 15:0099.65.44.21,104.623.317.9
2019-07-20 14:0095.712.53.5911.427.418.2
2019-07-20 13:0060.420.02.7839.329.916.9
2019-07-20 12:0071.417.13.0897.933.719.2
2019-07-20 11:0082.913.54.0933.834.218.2
2019-07-20 10:0075.415.63.3892.032.717.6
2019-07-20 09:0080.814.63.2797.025.315.3
2019-07-20 08:0067.917.22.7778.824.615.2
2019-07-20 07:0061.315.62.6783.422.615.4
2019-07-20 06:0049.515.12.1783.219.814.2
2019-07-20 05:0040.020.32.0806.121.215.4
2019-07-20 04:0051.414.42.3941.322.316.5
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:03:07 21-07-2019