Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2019-07-21 03:0028.44.94.1868.920.28.4
2019-07-21 02:0033.14.64.7946.728.48.8
2019-07-21 01:0037.24.64.2955.222.010.6
2019-07-21 00:0048.85.54.0868.124.711.1
2019-07-20 23:0053.44.73.7898.820.410.3
2019-07-20 22:0060.45.54.2859.113.813.2
2019-07-20 21:0063.45.04.7822.514.711.8
2019-07-20 20:0056.512.94.2821.417.48.4
2019-07-20 19:0053.811.83.9767.26.6-
2019-07-20 18:0034.437.03.7705.89.26.0
2019-07-20 17:0028.645.43.6678.920.96.6
2019-07-20 16:0057.613.33.6853.815.5-
2019-07-20 15:0056.515.63.8847.618.412.7
2019-07-20 14:0046.827.04.5855.617.8-
2019-07-20 13:0030.846.55.4700.432.016.5
2019-07-20 12:0032.741.03.8701.927.418.3
2019-07-20 11:0024.843.45.3697.722.52.6
2019-07-20 10:0024.440.34.8632.324.410.4
2019-07-20 09:0030.033.24.9677.025.310.6
2019-07-20 08:0033.225.43.5707.724.010.2
2019-07-20 07:0036.314.63.7746.726.513.3
2019-07-20 06:0026.121.93.9695.724.911.6
2019-07-20 05:0021.823.03.6703.628.410.6
2019-07-20 04:0028.718.63.8740.323.113.9
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:03:07 21-07-2019