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Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2021-06-21 06:0024.852.53.4539.827.212.0
2021-06-21 05:0011.060.63.3524.120.416.7
2021-06-21 04:0013.057.63.4522.826.818.0
2021-06-21 03:0012.856.53.3526.728.010.3
2021-06-21 02:0015.053.83.3533.230.918.7
2021-06-21 01:0024.444.83.3569.728.114.2
2021-06-21 00:0018.653.53.1587.829.912.1
2021-06-20 23:0024.146.33.2567.127.113.9
2021-06-20 22:0020.747.73.3579.535.710.1
2021-06-20 21:0030.338.53.2601.627.312.9
2021-06-20 20:0027.241.23.3580.627.010.1
2021-06-20 19:0019.247.33.3569.822.27.1
2021-06-20 18:0021.246.83.4548.724.98.9
2021-06-20 17:0017.259.73.3555.327.911.9
2021-06-20 16:0017.368.53.6570.925.115.9
2021-06-20 15:0014.176.63.5570.427.913.1
2021-06-20 14:0016.777.13.4593.135.714.9
2021-06-20 13:0015.471.03.4557.637.013.1
2021-06-20 12:0015.366.53.4527.331.212.0
2021-06-20 11:0015.661.33.3529.023.311.0
2021-06-20 10:0015.661.13.3521.827.812.0
2021-06-20 09:0018.552.53.4536.925.18.1
2021-06-20 08:0018.050.73.2531.823.112.8
2021-06-20 07:0018.148.73.2536.625.98.2
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.

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Last revision date: 06:07 21-06-2021