Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2017-11-22 09:0076.62.08.0816.524.215.4
2017-11-22 08:0082.72.08.7773.325.017.2
2017-11-22 07:0062.61.66.3706.922.414.7
2017-11-22 06:0053.12.15.3680.321.514.3
2017-11-22 05:0055.83.05.2677.425.916.6
2017-11-22 04:0055.32.95.4755.623.316.0
2017-11-22 03:0054.28.44.9694.926.717.8
2017-11-22 02:0068.41.56.2786.640.825.0
2017-11-22 01:0079.01.38.1912.866.742.1
2017-11-22 00:0084.71.79.1945.873.045.8
2017-11-21 23:0097.31.810.01,025.064.538.3
2017-11-21 22:00107.52.19.41,082.061.239.6
2017-11-21 21:00121.32.210.11,159.829.618.2
2017-11-21 20:00109.19.45.2874.915.87.6
2017-11-21 19:00111.210.16.5821.226.416.6
2017-11-21 18:00110.412.45.6770.729.518.1
2017-11-21 17:00101.07.99.1775.516.78.7
2017-11-21 16:0093.610.59.4769.219.112.3
2017-11-21 15:0098.48.56.1780.713.99.0
2017-11-21 14:0077.49.85.0704.715.511.4
2017-11-21 13:0078.06.37.0736.314.69.4
2017-11-21 12:0071.86.36.4839.416.29.6
2017-11-21 11:0063.94.36.9772.117.811.0
2017-11-21 10:0077.92.09.0766.618.412.0
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.

Last revision date:09:06 22-11-2017