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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2023-06-08 16:0039.321.74.1633.015.15.8
2023-06-08 15:0036.329.33.8669.914.75.6
2023-06-08 14:0033.535.23.6633.99.85.4
2023-06-08 13:0039.632.14.0669.915.18.0
2023-06-08 12:0039.031.43.4669.619.011.4
2023-06-08 11:0045.218.33.7811.19.25.7
2023-06-08 10:0032.121.83.1768.87.24.8
2023-06-08 09:0050.18.74.0841.68.44.6
2023-06-08 08:0033.414.12.9764.38.14.7
2023-06-08 07:0025.518.82.4695.67.54.5
2023-06-08 06:0020.829.72.4649.09.15.4
2023-06-08 05:0017.335.82.4629.27.84.5
2023-06-08 04:0013.136.72.5624.57.63.2
2023-06-08 03:0012.535.32.4623.711.36.3
2023-06-08 02:0017.531.42.6624.011.57.1
2023-06-08 01:0031.421.72.7725.68.75.0
2023-06-08 00:0028.721.62.6697.09.75.3
2023-06-07 23:0033.018.82.7725.212.16.5
2023-06-07 22:0038.214.63.1800.111.77.2
2023-06-07 21:0038.018.43.1783.014.58.9
2023-06-07 20:0048.910.93.2792.514.58.5
2023-06-07 19:0058.35.73.8806.513.09.0
2023-06-07 18:0057.66.34.2753.212.58.2
2023-06-07 17:0045.316.13.0774.414.79.6
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.