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Past 24 Hours Pollutant Concentration Summary

Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2022-05-26 10:0059.410.28.0657.58.95.8
2022-05-26 09:0047.514.57.1663.18.25.2
2022-05-26 08:0039.116.66.7634.49.55.5
2022-05-26 07:0030.18.06.5585.911.36.4
2022-05-26 06:0020.615.06.1517.39.44.2
2022-05-26 05:0016.023.36.1492.28.14.3
2022-05-26 04:0014.227.56.0476.711.56.3
2022-05-26 03:0018.020.86.0498.710.95.9
2022-05-26 02:0021.226.56.1531.58.35.7
2022-05-26 01:0029.826.66.0549.98.46.2
2022-05-26 00:0035.125.55.9583.48.26.5
2022-05-25 23:0036.829.06.0600.67.66.6
2022-05-25 22:0034.737.16.1600.69.17.8
2022-05-25 21:0040.436.66.2649.610.89.0
2022-05-25 20:0048.031.16.1691.710.98.3
2022-05-25 19:0052.730.76.5662.113.18.9
2022-05-25 18:0073.519.17.6704.219.211.5
2022-05-25 17:0090.011.110.4659.822.213.1
2022-05-25 16:0091.110.610.4684.425.215.4
2022-05-25 15:0086.514.410.0676.522.213.8
2022-05-25 14:0074.818.710.5677.221.614.0
2022-05-25 13:0077.413.99.8699.017.212.0
2022-05-25 12:0053.523.57.2670.87.46.0
2022-05-25 11:0028.538.36.1613.75.64.4
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.