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Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2024-02-23 09:0030.56.31.5689.414.910.4
2024-02-23 08:0026.88.31.3660.614.211.0
2024-02-23 07:0024.410.01.5594.015.712.0
2024-02-23 06:0032.55.73.7700.619.214.5
2024-02-23 05:0038.90.54.2785.221.816.7
2024-02-23 04:0040.40.64.4803.121.015.6
2024-02-23 03:0043.30.84.4821.921.115.2
2024-02-23 02:0045.40.73.1772.320.315.6
2024-02-23 01:0038.99.91.6652.518.116.0
2024-02-23 00:0034.620.01.6567.217.315.4
2024-02-22 23:0037.121.01.5604.516.715.1
2024-02-22 22:0027.430.01.0566.315.013.4
2024-02-22 21:0031.528.11.5574.315.713.7
2024-02-22 20:0041.619.81.7554.018.015.9
2024-02-22 19:0050.116.81.9510.820.417.7
2024-02-22 18:0034.834.42.4484.020.517.7
2024-02-22 17:0029.137.22.7456.523.220.0
2024-02-22 16:00----24.421.2
2024-02-22 15:00-45.33.1467.425.821.9
2024-02-22 14:0018.245.23.6465.020.919.1
2024-02-22 13:0022.239.23.3493.420.018.6
2024-02-22 12:0024.934.23.0497.920.819.1
2024-02-22 11:0037.518.63.2525.516.214.5
2024-02-22 10:0046.05.43.6630.815.414.3
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.