Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2018-06-21 10:0019.142.26.6-25.112.5
2018-06-21 09:0015.846.65.9-25.013.4
2018-06-21 08:0021.937.57.8-22.511.0
2018-06-21 07:0012.242.75.0-21.910.0
2018-06-21 06:007.245.05.2-22.510.2
2018-06-21 05:004.646.55.2-23.611.6
2018-06-21 04:005.344.66.3-23.211.4
2018-06-21 03:0018.131.37.8-25.614.6
2018-06-21 02:0011.638.16.2-21.711.1
2018-06-21 01:0011.841.26.4-25.714.1
2018-06-21 00:0010.441.64.9-23.611.6
2018-06-20 23:009.944.64.7-23.411.2
2018-06-20 22:007.247.64.2-22.410.6
2018-06-20 21:009.945.63.6-22.110.0
2018-06-20 20:0010.343.73.3-21.39.3
2018-06-20 19:0012.642.05.4-24.712.1
2018-06-20 18:0014.244.24.7-26.313.0
2018-06-20 17:0014.647.25.3-30.516.5
2018-06-20 16:0016.345.55.2-22.89.1
2018-06-20 15:0012.748.25.8-25.211.7
2018-06-20 14:009.548.74.3---
2018-06-20 13:0011.450.05.3---
2018-06-20 12:0011.852.97.8---
2018-06-20 11:0012.551.38.2-28.413.5
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:10:07 21-06-2018