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Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2023-04-02 18:0022.582.64.1869.821.718.8
2023-04-02 17:0024.977.44.0891.519.717.0
2023-04-02 16:0027.172.74.0857.117.816.0
2023-04-02 15:0020.275.74.0810.517.815.4
2023-04-02 14:0023.766.64.0860.719.016.3
2023-04-02 13:0024.165.13.8848.215.313.0
2023-04-02 12:0024.657.54.0818.113.611.9
2023-04-02 11:0026.654.43.8852.210.69.4
2023-04-02 10:0024.755.53.9844.211.49.7
2023-04-02 09:0031.552.03.8872.630.326.3
2023-04-02 08:0024.760.03.7818.821.217.6
2023-04-02 07:0023.757.93.9795.319.615.4
2023-04-02 06:0025.750.94.0792.215.713.0
2023-04-02 05:0024.654.93.9778.416.611.7
2023-04-02 04:0026.451.54.1839.914.911.1
2023-04-02 03:0029.452.54.1872.418.315.8
2023-04-02 02:0032.353.14.5926.914.313.2
2023-04-02 01:00----13.112.1
2023-04-02 00:0026.273.73.6872.318.316.6
2023-04-01 23:0031.073.53.9915.825.323.0
2023-04-01 22:0031.075.53.8925.826.323.4
2023-04-01 21:0035.466.34.1931.829.524.5
2023-04-01 20:0044.163.64.0919.226.821.2
2023-04-01 19:0043.161.64.0938.024.619.7
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.