Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2019-08-18 04:0024.524.75.6350.513.16.7
2019-08-18 03:0022.024.25.5361.511.15.8
2019-08-18 02:0029.017.15.8380.310.96.5
2019-08-18 01:0037.311.36.0386.711.17.9
2019-08-18 00:0033.618.06.5411.39.87.7
2019-08-17 23:0028.820.65.6408.710.57.7
2019-08-17 22:0033.519.16.1423.811.98.4
2019-08-17 21:0047.86.77.3516.315.611.3
2019-08-17 20:0048.05.76.1472.811.711.3
2019-08-17 19:0047.58.66.0528.29.2-
2019-08-17 18:0040.622.36.4476.519.69.7
2019-08-17 17:0058.819.88.4521.619.111.2
2019-08-17 16:0047.440.47.4445.517.411.7
2019-08-17 15:0046.442.18.1455.69.2-
2019-08-17 14:0039.846.16.0449.05.9-
2019-08-17 13:0037.134.65.8460.622.75.4
2019-08-17 12:0043.938.96.6503.321.112.4
2019-08-17 11:0042.744.27.5521.227.214.5
2019-08-17 10:0040.636.98.5525.227.617.3
2019-08-17 09:0043.920.38.3547.815.9-
2019-08-17 08:0040.220.65.7455.919.110.0
2019-08-17 07:0036.922.15.8399.013.28.9
2019-08-17 06:0020.832.46.0331.915.97.0
2019-08-17 05:0038.519.46.6401.117.410.1
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:04:07 18-08-2019