Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2021-04-12 02:0016.694.02.3-19.111.7
2021-04-12 01:0021.198.62.4-19.912.0
2021-04-12 00:0019.3107.22.5-21.813.0
2021-04-11 23:0018.8119.93.0-23.313.8
2021-04-11 22:0021.1120.33.5-24.514.9
2021-04-11 21:0027.5120.83.8-25.916.3
2021-04-11 20:0032.8115.13.6-23.914.6
2021-04-11 19:0028.8125.53.0-20.512.2
2021-04-11 18:0021.4129.52.9-20.712.3
2021-04-11 17:0024.6124.62.8-24.714.9
2021-04-11 16:0022.3126.22.6-25.615.2
2021-04-11 15:0024.1123.52.7-26.516.9
2021-04-11 14:0020.7118.42.3-25.115.4
2021-04-11 13:0016.4120.42.0-26.515.9
2021-04-11 12:0015.6116.22.2-24.713.7
2021-04-11 11:0017.8111.42.4-23.811.5
2021-04-11 10:0019.3104.32.3-22.910.0
2021-04-11 09:0018.698.92.4-23.29.8
2021-04-11 08:0018.299.02.3-24.110.1
2021-04-11 07:0012.4110.32.4-27.413.2
2021-04-11 06:0010.8116.92.5-26.211.7
2021-04-11 05:0010.5120.32.6-29.215.2
2021-04-11 04:009.8125.12.7-29.214.5
2021-04-11 03:0012.0122.32.6-28.913.7
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: 02:07 12-04-2021