EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

North
Date TimeNO2O3SO2COPM10PM2.5
2023-12-08 09:0077.611.75.7909.828.811.6
2023-12-08 08:0079.46.06.71,010.026.415.4
2023-12-08 07:0065.19.53.8837.025.716.3
2023-12-08 06:0054.49.33.6672.023.713.9
2023-12-08 05:0051.916.73.4677.522.113.3
2023-12-08 04:0035.123.72.6606.824.215.1
2023-12-08 03:0038.816.22.1629.028.015.3
2023-12-08 02:0051.312.02.2660.526.610.4
2023-12-08 01:0069.117.32.7749.328.78.6
2023-12-08 00:0078.015.72.7720.836.914.7
2023-12-07 23:0079.411.13.4936.343.720.0
2023-12-07 22:0089.58.13.51,125.945.921.4
2023-12-07 21:00100.79.33.71,196.845.121.1
2023-12-07 20:00103.410.44.21,071.841.217.1
2023-12-07 19:00115.813.34.61,323.345.813.5
2023-12-07 18:0037.798.33.0869.350.912.3
2023-12-07 17:0032.1114.03.1628.248.612.2
2023-12-07 16:0043.4104.03.2487.446.712.7
2023-12-07 15:0043.6104.13.5460.449.516.5
2023-12-07 14:0035.5104.13.4616.341.518.9
2023-12-07 13:0041.290.73.5524.137.217.7
2023-12-07 12:0046.867.73.9557.940.615.0
2023-12-07 11:0041.362.04.1799.329.912.7
2023-12-07 10:0042.052.94.3528.325.513.6
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.