EPD

Back Home

Past 24 Hours Pollutant Concentration Summary

Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2023-12-04 09:0050.811.95.0702.858.044.8
2023-12-04 08:0046.515.44.2675.363.948.9
2023-12-04 07:0031.231.43.7628.567.042.1
2023-12-04 06:0032.732.13.7635.258.240.0
2023-12-04 05:0030.145.43.7632.552.136.1
2023-12-04 04:0025.160.13.7619.448.135.0
2023-12-04 03:0021.072.83.6651.945.133.0
2023-12-04 02:0016.891.13.7617.848.034.0
2023-12-04 01:0018.591.34.2634.852.933.0
2023-12-04 00:0032.177.94.3678.543.235.0
2023-12-03 23:0031.479.24.2684.046.034.0
2023-12-03 22:0042.568.54.7696.949.937.9
2023-12-03 21:0077.535.55.7778.447.138.0
2023-12-03 20:0074.246.15.5760.754.939.0
2023-12-03 19:0065.980.84.9743.352.138.0
2023-12-03 18:0077.585.05.6749.960.938.0
2023-12-03 17:0047.7120.95.3682.354.135.1
2023-12-03 16:0044.7108.84.3720.536.330.1
2023-12-03 15:0034.595.94.1668.931.127.1
2023-12-03 14:0028.588.63.8680.736.928.0
2023-12-03 13:0029.173.83.9679.240.026.0
2023-12-03 12:00-56.7--43.931.9
2023-12-03 11:0035.244.74.0735.541.134.0
2023-12-03 10:0031.442.74.3710.046.933.0
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.