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Past 24 Hours Pollutant Concentration Summary

Tuen Mun
Date TimeNO2O3SO2COPM10PM2.5
2023-09-28 16:0030.368.53.7342.924.119.9
2023-09-28 15:0029.280.03.3353.817.17.4
2023-09-28 14:0027.574.32.4359.623.912.8
2023-09-28 13:0033.970.22.6388.220.112.0
2023-09-28 12:0040.164.52.7395.023.913.0
2023-09-28 11:0028.265.02.6387.222.09.1
2023-09-28 10:0032.654.92.7384.615.110.0
2023-09-28 09:0028.450.82.8404.919.912.9
2023-09-28 08:0033.937.72.9404.120.013.0
2023-09-28 07:0019.052.22.5341.016.113.0
2023-09-28 06:0013.459.72.3308.319.99.1
2023-09-28 05:0012.961.82.2296.621.017.9
2023-09-28 04:0012.358.72.7280.023.014.1
2023-09-28 03:0017.966.53.2326.028.917.0
2023-09-28 02:0016.377.02.7328.431.013.1
2023-09-28 01:00-84.32.4314.724.117.9
2023-09-28 00:0016.978.42.5309.027.017.0
2023-09-27 23:0029.260.62.8347.033.917.0
2023-09-27 22:0039.543.83.1360.532.020.9
2023-09-27 21:0058.121.84.0364.540.918.1
2023-09-27 20:0056.535.53.5367.428.223.9
2023-09-27 19:0067.039.93.8402.733.921.1
2023-09-27 18:0059.365.24.1395.526.116.1
2023-09-27 17:0038.585.13.0371.420.114.0
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.