Central
Date TimeNO2O3SO2COPM10PM2.5
2021-06-20 05:0037.030.93.1357.619.210.6
2021-06-20 04:0034.928.63.1410.418.210.3
2021-06-20 03:0034.231.23.0370.620.812.3
2021-06-20 02:0039.131.33.2422.918.69.8
2021-06-20 01:0048.719.63.5420.620.513.0
2021-06-20 00:0049.315.24.0428.219.312.0
2021-06-19 23:0033.427.13.0345.218.410.4
2021-06-19 22:0029.331.32.9341.819.410.7
2021-06-19 21:0047.821.63.5560.525.416.1
2021-06-19 20:0055.017.33.4566.321.513.2
2021-06-19 19:0047.425.23.1388.622.214.2
2021-06-19 18:0028.043.32.9337.721.011.7
2021-06-19 17:0048.934.93.4397.821.512.3
2021-06-19 16:0058.826.43.7447.323.712.6
2021-06-19 15:0058.129.83.9469.529.117.7
2021-06-19 14:0064.220.44.7591.026.616.5
2021-06-19 13:0075.121.94.4527.826.716.1
2021-06-19 12:0067.126.74.3487.928.417.1
2021-06-19 11:0075.919.24.6513.323.713.8
2021-06-19 10:0067.620.54.3468.822.914.6
2021-06-19 09:0057.824.53.9486.420.712.2
2021-06-19 08:0043.527.83.3407.324.815.8
2021-06-19 07:0047.819.83.6394.523.114.6
2021-06-19 06:0037.823.63.1342.918.311.3
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.

Last revision date: 05:07 20-06-2021