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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2023-06-05 09:0029.321.53.1710.115.59.5
2023-06-05 08:0029.718.12.8715.915.09.5
2023-06-05 07:0026.417.72.4679.611.57.9
2023-06-05 06:0012.629.42.4594.111.88.5
2023-06-05 05:008.131.02.4550.912.58.9
2023-06-05 04:005.936.12.4554.412.28.8
2023-06-05 03:006.739.82.5578.413.88.4
2023-06-05 02:0010.040.43.9548.913.38.4
2023-06-05 01:00----15.611.2
2023-06-05 00:0017.729.92.3592.915.09.9
2023-06-04 23:0023.227.52.4640.414.09.7
2023-06-04 22:0022.929.02.4641.311.88.1
2023-06-04 21:0021.830.82.4659.412.17.2
2023-06-04 20:0026.930.72.4632.912.68.1
2023-06-04 19:0024.233.72.4652.710.97.4
2023-06-04 18:0020.138.52.3637.211.77.4
2023-06-04 17:0022.238.72.5629.212.17.0
2023-06-04 16:0021.241.52.9630.414.19.9
2023-06-04 15:0021.942.52.9640.314.510.6
2023-06-04 14:0021.948.13.0627.713.19.3
2023-06-04 13:0023.947.93.2662.115.011.1
2023-06-04 12:0036.732.43.0713.012.88.6
2023-06-04 11:0028.538.31.8676.315.210.9
2023-06-04 10:0019.844.62.5630.713.310.4
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.