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Past 24 Hours Pollutant Concentration Summary

Yuen Long
Date TimeNO2O3SO2COPM10PM2.5
2019-09-16 04:0038.948.04.1448.029.715.7
2019-09-16 03:0039.645.15.8461.531.319.6
2019-09-16 02:00----30.419.0
2019-09-16 01:00----35.720.0
2019-09-16 00:0051.448.96.0532.430.520.1
2019-09-15 23:0051.351.57.2546.324.621.1
2019-09-15 22:0053.749.57.0478.828.921.2
2019-09-15 21:0054.952.85.1547.231.419.5
2019-09-15 20:0058.948.65.0558.327.819.8
2019-09-15 19:0054.573.85.1530.830.423.8
2019-09-15 18:0055.285.75.1561.233.622.4
2019-09-15 17:0041.1105.24.9479.126.424.4
2019-09-15 16:0034.2110.83.5432.128.420.6
2019-09-15 15:0029.299.83.0416.226.819.1
2019-09-15 14:0015.5108.43.1388.934.017.4
2019-09-15 13:0016.994.73.1382.730.418.0
2019-09-15 12:0022.087.63.0416.128.515.1
2019-09-15 11:0028.766.83.1457.618.517.3
2019-09-15 10:0020.870.22.9428.423.914.6
2019-09-15 09:0038.938.53.0528.046.617.4
2019-09-15 08:0044.911.83.4542.630.121.4
2019-09-15 07:0042.23.52.8613.923.218.4
2019-09-15 06:0034.210.42.4533.828.514.2
2019-09-15 05:0039.912.52.5525.625.413.7
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.