EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2019-08-22 20:0081.357.26.9643.936.125.1
2019-08-22 19:0057.284.06.4633.133.122.1
2019-08-22 18:0047.196.35.3603.335.920.1
2019-08-22 17:0036.6112.86.8582.235.021.9
2019-08-22 16:0034.4113.47.7572.234.021.0
2019-08-22 15:0041.192.49.8566.534.024.9
2019-08-22 14:0036.898.310.6576.533.020.2
2019-08-22 13:0039.183.118.0560.028.222.9
2019-08-22 12:0048.260.429.5554.427.016.2
2019-08-22 11:0042.452.614.8532.429.917.9
2019-08-22 10:0057.725.810.6611.525.216.1
2019-08-22 09:0061.416.27.9711.330.821.8
2019-08-22 08:0060.49.25.0740.732.021.0
2019-08-22 07:0057.912.34.7640.228.116.2
2019-08-22 06:0058.913.44.9568.627.017.0
2019-08-22 05:0057.614.25.1543.330.918.0
2019-08-22 04:0075.36.26.3551.125.217.0
2019-08-22 03:0051.016.64.9620.825.010.2
2019-08-22 02:0053.814.06.0647.427.917.7
2019-08-22 01:00-44.77.0562.928.018.0
2019-08-22 00:0029.158.07.4533.829.018.0
2019-08-21 23:0038.947.75.0565.228.016.1
2019-08-21 22:0042.447.05.5570.524.118.9
2019-08-21 21:0053.040.84.2594.825.019.0
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.