Past 24 Hours Pollutant Concentration Summary

Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2019-05-20 03:0016.536.43.6-19.29.9
2019-05-20 02:0019.232.13.8-20.310.4
2019-05-20 01:0024.326.34.4-19.09.0
2019-05-20 00:0013.838.33.1-19.99.8
2019-05-19 23:0016.135.63.0-20.19.8
2019-05-19 22:0018.334.42.8-20.911.0
2019-05-19 21:0020.832.73.0-21.611.3
2019-05-19 20:0013.641.52.2-21.410.9
2019-05-19 19:0018.041.43.2-22.812.9
2019-05-19 18:0017.448.03.7-22.212.3
2019-05-19 17:0013.658.83.3-21.912.0
2019-05-19 16:0011.065.32.7-24.314.0
2019-05-19 15:007.470.62.6-23.514.1
2019-05-19 14:005.473.82.4-24.514.8
2019-05-19 13:007.173.42.3-25.214.7
2019-05-19 12:006.376.42.6-27.316.3
2019-05-19 11:008.071.92.3-25.414.4
2019-05-19 10:007.469.12.3-26.215.4
2019-05-19 09:0013.459.92.7-25.014.2
2019-05-19 08:0011.259.12.7-22.912.6
2019-05-19 07:009.260.42.7-22.312.3
2019-05-19 06:0022.344.84.5-24.014.3
2019-05-19 05:0015.047.73.3-21.411.6
2019-05-19 04:0019.242.03.7-19.39.5
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 20-05-2019