Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2021-10-29 05:0014.797.24.1572.742.823.0
2021-10-29 04:0010.9107.64.2561.546.925.9
2021-10-29 03:0013.0105.34.3562.941.226.0
2021-10-29 02:0015.8102.64.2564.438.125.0
2021-10-29 01:0030.186.64.3600.944.824.0
2021-10-29 00:0034.286.94.5607.340.222.1
2021-10-28 23:0034.492.04.4632.948.728.8
2021-10-28 22:0048.973.64.4659.150.934.8
2021-10-28 21:0066.257.05.0679.264.533.1
2021-10-28 20:0084.665.56.2690.363.134.0
2021-10-28 19:0076.980.47.0671.446.626.3
2021-10-28 18:0072.372.16.4628.244.127.0
2021-10-28 17:0059.982.56.6593.948.829.9
2021-10-28 16:0043.992.06.0592.650.931.0
2021-10-28 15:0048.986.05.9606.650.026.2
2021-10-28 14:0043.195.35.5625.352.925.0
2021-10-28 13:0041.390.15.3640.458.833.7
2021-10-28 12:0047.572.56.4694.360.034.0
2021-10-28 11:0060.948.46.4748.254.227.2
2021-10-28 10:0059.444.46.3705.345.317.3
2021-10-28 09:0056.145.86.1619.241.118.9
2021-10-28 08:0048.160.35.0627.332.318.0
2021-10-28 07:0020.792.34.4524.626.214.1
2021-10-28 06:0018.088.04.2500.129.912.1
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 29-10-2021