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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2022-10-03 07:0025.515.18.5411.612.69.9
2022-10-03 06:0013.428.38.3336.011.07.9
2022-10-03 05:0010.533.58.4325.57.64.6
2022-10-03 04:007.733.18.5286.87.93.9
2022-10-03 03:008.832.48.9291.910.56.7
2022-10-03 02:008.931.57.9283.18.55.5
2022-10-03 01:0015.722.87.9311.06.03.7
2022-10-03 00:0021.816.18.2349.59.26.4
2022-10-02 23:0022.418.68.3380.811.88.5
2022-10-02 22:0025.622.98.4427.913.59.8
2022-10-02 21:0022.225.48.2418.112.79.2
2022-10-02 20:0027.023.28.3442.813.19.8
2022-10-02 19:0029.216.18.5449.110.67.6
2022-10-02 18:0026.517.38.3445.510.97.6
2022-10-02 17:0022.723.68.3391.410.18.6
2022-10-02 16:0022.630.58.2371.910.77.7
2022-10-02 15:0023.030.78.5386.210.67.0
2022-10-02 14:0018.832.48.4377.411.17.8
2022-10-02 13:0018.836.08.4384.811.07.2
2022-10-02 12:0019.934.78.2388.411.38.0
2022-10-02 11:0019.135.58.4385.411.07.0
2022-10-02 10:0022.932.58.4427.411.67.5
2022-10-02 09:0023.428.18.4425.113.19.3
2022-10-02 08:0024.627.58.6436.615.211.1
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.