EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Eastern
Date TimeNO2O3SO2COPM10PM2.5
2019-08-22 20:0028.1116.94.4-29.020.3
2019-08-22 19:0044.1100.33.9-27.321.2
2019-08-22 18:0046.791.72.6-28.322.5
2019-08-22 17:0043.590.92.4-27.621.3
2019-08-22 16:0045.685.52.0-25.723.7
2019-08-22 15:0040.494.12.0-24.921.0
2019-08-22 14:0040.9104.31.8-30.118.6
2019-08-22 13:0034.7101.22.1-30.118.4
2019-08-22 12:0041.487.72.3-24.218.2
2019-08-22 11:0044.553.22.3-22.318.8
2019-08-22 10:0044.446.82.8-25.821.6
2019-08-22 09:0053.839.43.0-27.822.3
2019-08-22 08:0053.331.53.0-23.718.5
2019-08-22 07:0030.148.03.3-18.514.2
2019-08-22 06:0013.762.94.5-14.511.5
2019-08-22 05:0016.063.33.4-17.113.8
2019-08-22 04:0020.960.13.3-22.515.8
2019-08-22 03:0027.152.73.7-21.916.7
2019-08-22 02:0045.834.23.0-18.115.9
2019-08-22 01:0036.945.42.7-18.6-
2019-08-22 00:0029.059.53.0-20.819.4
2019-08-21 23:0032.357.52.7-17.514.5
2019-08-21 22:0027.260.92.5-16.710.9
2019-08-21 21:0038.558.22.5-17.713.3
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.