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Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2022-05-26 10:0047.414.43.0715.815.611.3
2022-05-26 09:0037.213.32.7744.414.210.0
2022-05-26 08:0033.914.62.6715.811.67.8
2022-05-26 07:0037.710.32.7809.314.011.1
2022-05-26 06:0032.09.32.4731.115.312.3
2022-05-26 05:0029.412.82.2704.913.710.9
2022-05-26 04:0026.417.22.3689.311.59.5
2022-05-26 03:0033.216.83.0711.611.69.7
2022-05-26 02:0040.315.42.0757.710.08.8
2022-05-26 01:0033.921.82.3726.37.66.2
2022-05-26 00:0034.525.72.3704.18.07.4
2022-05-25 23:0036.428.42.4730.99.99.4
2022-05-25 22:0047.326.72.3751.910.59.5
2022-05-25 21:0046.727.02.7760.210.18.1
2022-05-25 20:0070.115.43.1824.712.89.3
2022-05-25 19:0067.624.42.9799.620.316.2
2022-05-25 18:0060.732.63.3811.117.614.3
2022-05-25 17:0059.533.63.0776.116.412.7
2022-05-25 16:0050.744.23.6736.09.68.2
2022-05-25 15:0030.245.12.8623.97.76.8
2022-05-25 14:0034.842.72.7671.212.710.5
2022-05-25 13:0048.831.52.7723.012.29.0
2022-05-25 12:0036.435.22.4737.79.07.6
2022-05-25 11:0030.334.42.3723.17.77.6
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.

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Last revision date: 10:07 26-05-2022