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Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2022-01-19 08:0047.78.74.91,103.426.921.6
2022-01-19 07:0046.75.44.81,129.529.621.7
2022-01-19 06:0049.93.05.01,129.926.818.9
2022-01-19 05:0040.78.74.61,093.128.919.9
2022-01-19 04:0046.68.05.11,126.931.619.5
2022-01-19 03:0051.37.56.41,136.029.719.1
2022-01-19 02:0042.413.77.01,116.128.319.5
2022-01-19 01:00----32.322.0
2022-01-19 00:0049.612.54.51,158.233.222.0
2022-01-18 23:0051.614.13.91,154.339.224.8
2022-01-18 22:0057.012.03.61,171.946.429.3
2022-01-18 21:0062.412.74.61,218.946.829.3
2022-01-18 20:0065.413.53.91,229.547.329.8
2022-01-18 19:0072.69.83.51,238.556.834.8
2022-01-18 18:0074.217.73.71,209.758.435.8
2022-01-18 17:0065.726.23.01,160.252.833.0
2022-01-18 16:0053.735.63.01,123.145.430.1
2022-01-18 15:0049.732.42.91,118.546.331.2
2022-01-18 14:0052.921.23.11,177.342.128.8
2022-01-18 13:0049.417.83.01,139.534.226.4
2022-01-18 12:0044.014.32.91,095.331.625.7
2022-01-18 11:0038.017.33.01,075.335.928.9
2022-01-18 10:0033.319.42.81,088.838.429.5
2022-01-18 09:0041.24.53.01,158.641.030.4
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.