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Past 24 Hours Pollutant Concentration Summary

Central
Date TimeNO2O3SO2COPM10PM2.5
2019-09-17 22:0098.965.41.7842.847.430.7
2019-09-17 21:00122.853.62.5939.145.828.9
2019-09-17 20:00147.039.43.6956.444.827.8
2019-09-17 19:00170.723.24.41,009.952.234.6
2019-09-17 18:00163.333.83.7959.550.332.0
2019-09-17 17:00127.655.72.0900.644.227.7
2019-09-17 16:00108.570.11.8841.746.028.4
2019-09-17 15:00109.376.82.0820.548.030.6
2019-09-17 14:0095.377.81.31,169.342.025.3
2019-09-17 13:00114.161.62.4979.142.627.6
2019-09-17 12:00124.850.83.1886.446.530.6
2019-09-17 11:00131.443.13.4857.245.227.9
2019-09-17 10:00139.937.13.8810.845.327.9
2019-09-17 09:00130.941.33.0738.840.422.3
2019-09-17 08:0086.166.91.8728.639.723.3
2019-09-17 07:0045.098.21.6636.935.621.9
2019-09-17 06:0030.4112.11.4616.129.316.9
2019-09-17 05:0025.0114.71.1751.530.618.6
2019-09-17 04:0026.9111.01.5686.730.717.0
2019-09-17 03:0030.9105.81.8663.330.216.1
2019-09-17 02:0041.195.41.9725.625.616.0
2019-09-17 01:0073.468.31.9776.728.518.5
2019-09-17 00:0083.358.02.3905.246.821.7
2019-09-16 23:0076.165.42.4894.6102.422.2
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.