Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2019-05-20 02:0014.626.42.8240.322.211.3
2019-05-20 01:0020.922.42.4260.1-10.7
2019-05-20 00:0023.520.72.4240.5-11.7
2019-05-19 23:0028.817.32.8248.128.812.7
2019-05-19 22:0029.618.13.2292.928.813.2
2019-05-19 21:0022.526.92.8317.0-13.9
2019-05-19 20:0026.129.63.1258.4-13.5
2019-05-19 19:0020.239.93.3224.928.914.6
2019-05-19 18:0018.548.73.2223.429.015.0
2019-05-19 17:0011.662.03.2201.031.914.1
2019-05-19 16:0015.663.13.3218.930.914.2
2019-05-19 15:0010.972.83.2195.325.012.8
2019-05-19 14:0010.977.63.6219.331.415.1
2019-05-19 13:0011.380.43.0244.333.615.6
2019-05-19 12:0014.174.52.7261.026.516.6
2019-05-19 11:0014.966.93.4259.624.217.8
2019-05-19 10:0013.364.62.6254.519.416.0
2019-05-19 09:0018.453.42.7253.531.316.6
2019-05-19 08:0024.338.42.6272.926.817.9
2019-05-19 07:0020.839.22.6293.220.615.4
2019-05-19 06:0010.843.22.7269.920.914.5
2019-05-19 05:0011.442.82.3233.818.013.7
2019-05-19 04:008.944.22.6273.222.913.0
2019-05-19 03:009.540.62.8265.620.711.7
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.

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Last revision date:02:07 20-05-2019