EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2023-04-02 18:0019.684.42.0605.321.112.2
2023-04-02 17:0019.283.11.9607.120.012.0
2023-04-02 16:0020.281.71.9574.920.012.0
2023-04-02 15:0019.379.62.0564.220.018.8
2023-04-02 14:0027.970.02.2600.023.915.1
2023-04-02 13:0022.476.42.1618.725.916.9
2023-04-02 12:0021.776.02.0628.225.010.2
2023-04-02 11:0030.065.62.6645.222.114.8
2023-04-02 10:0039.649.52.7636.519.19.2
2023-04-02 09:0032.253.31.7656.519.017.7
2023-04-02 08:0029.456.11.7702.922.911.2
2023-04-02 07:0018.078.61.9583.823.017.8
2023-04-02 06:0012.789.22.0603.715.315.1
2023-04-02 05:0015.281.72.1577.316.912.1
2023-04-02 04:0017.976.62.0562.912.26.2
2023-04-02 03:0016.879.92.1564.114.97.9
2023-04-02 02:0018.880.32.1578.716.99.0
2023-04-02 01:0027.672.22.1600.513.112.9
2023-04-02 00:0027.774.42.0611.123.615.9
2023-04-01 23:0026.980.82.1633.025.918.9
2023-04-01 22:0045.560.32.7701.234.727.7
2023-04-01 21:0064.741.72.7743.138.927.0
2023-04-01 20:0071.938.73.2730.747.725.1
2023-04-01 19:0088.927.03.9730.352.827.9
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.