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Southern
Date TimeNO2O3SO2COPM10PM2.5
2021-06-21 05:0025.156.34.0220.829.512.9
2021-06-21 04:0021.254.73.9210.229.58.8
2021-06-21 03:0013.859.53.8212.828.48.0
2021-06-21 02:0020.750.63.8220.530.714.0
2021-06-21 01:0011.856.13.5216.531.815.1
2021-06-21 00:0025.747.94.3227.228.511.1
2021-06-20 23:0022.956.93.8251.626.110.1
2021-06-20 22:0019.464.23.2257.225.810.5
2021-06-20 21:0023.754.83.6237.530.111.0
2021-06-20 20:0036.739.34.1253.730.411.2
2021-06-20 19:0051.830.54.7285.825.212.1
2021-06-20 18:0032.147.54.5264.727.717.7
2021-06-20 17:0028.958.84.5252.025.617.7
2021-06-20 16:0023.466.24.3254.422.715.2
2021-06-20 15:0024.968.34.1275.426.313.1
2021-06-20 14:0023.272.13.3266.025.04.7
2021-06-20 13:0028.271.14.3249.824.34.3
2021-06-20 12:0032.159.64.1238.626.28.9
2021-06-20 11:0038.254.04.4257.623.66.5
2021-06-20 10:0035.250.64.8232.216.89.4
2021-06-20 09:0026.655.84.4233.620.914.3
2021-06-20 08:0041.538.84.8252.723.69.5
2021-06-20 07:0035.540.15.1215.622.09.7
2021-06-20 06:0023.950.64.1214.025.814.5
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: 05:07 21-06-2021