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Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2024-04-19 15:0019.748.61.4477.817.412.1
2024-04-19 14:0022.246.81.4462.819.414.2
2024-04-19 13:0018.049.61.5486.518.913.7
2024-04-19 12:0018.547.41.5512.823.719.2
2024-04-19 11:0022.542.41.4523.018.814.5
2024-04-19 10:0035.330.51.7539.716.111.9
2024-04-19 09:0032.431.41.8535.413.79.9
2024-04-19 08:0029.127.91.6546.210.47.3
2024-04-19 07:0018.735.91.0503.08.66.4
2024-04-19 06:0015.437.11.2486.59.37.3
2024-04-19 05:0016.335.31.0491.512.310.0
2024-04-19 04:0012.737.51.5468.711.48.3
2024-04-19 03:0021.633.21.7496.514.310.9
2024-04-19 02:0031.625.21.5545.612.27.8
2024-04-19 01:0040.128.82.0561.314.69.9
2024-04-19 00:0076.111.32.4698.317.312.0
2024-04-18 23:0067.221.91.9725.811.17.5
2024-04-18 22:0068.336.81.9661.17.44.0
2024-04-18 21:0063.848.82.2671.812.99.4
2024-04-18 20:0067.350.32.3636.110.46.4
2024-04-18 19:0068.467.92.6627.311.97.3
2024-04-18 18:0072.763.92.4581.315.08.8
2024-04-18 17:0065.453.71.5570.111.47.3
2024-04-18 16:0070.653.31.5618.412.79.4
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(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: 15:07 19-04-2024