EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Eastern
Date TimeNO2O3SO2COPM10PM2.5
2023-09-27 21:0032.961.01.7-16.39.3
2023-09-27 20:0032.459.22.0-16.610.4
2023-09-27 19:0034.563.21.5-18.612.5
2023-09-27 18:0043.479.81.9-20.513.2
2023-09-27 17:0046.797.92.1-24.216.0
2023-09-27 16:0035.2107.02.3-22.913.4
2023-09-27 15:0035.292.51.9-20.411.6
2023-09-27 14:0028.079.81.9-19.412.9
2023-09-27 13:0028.196.02.0-19.212.4
2023-09-27 12:0028.598.82.3-18.511.4
2023-09-27 11:0029.389.22.0-21.513.8
2023-09-27 10:0033.367.91.5-20.812.6
2023-09-27 09:0034.656.71.0-17.410.4
2023-09-27 08:0031.455.11.2-15.59.2
2023-09-27 07:0024.657.11.8-14.47.8
2023-09-27 06:0015.663.71.2-13.05.4
2023-09-27 05:0013.570.61.0-13.95.6
2023-09-27 04:008.981.61.5-16.88.1
2023-09-27 03:0011.085.11.5-18.18.9
2023-09-27 02:0014.381.31.4-18.09.2
2023-09-27 01:0018.777.21.6-20.112.4
2023-09-27 00:0023.379.81.3-19.611.9
2023-09-26 23:0021.084.21.4-17.710.4
2023-09-26 22:0025.190.01.6-19.010.8
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.