Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2023-09-26 07:0022.934.94.6624.49.06.5
2023-09-26 06:0013.554.54.3577.18.85.0
2023-09-26 05:007.862.74.3544.110.16.7
2023-09-26 04:007.762.34.7545.09.96.1
2023-09-26 03:008.066.24.3537.811.06.6
2023-09-26 02:009.971.44.2538.112.38.0
2023-09-26 01:0018.368.24.2560.313.89.1
2023-09-26 00:0023.463.64.3582.714.99.8
2023-09-25 23:0027.951.84.5592.614.09.0
2023-09-25 22:0028.951.24.8587.816.411.3
2023-09-25 21:0030.358.84.7619.917.311.2
2023-09-25 20:0039.168.04.8638.420.714.1
2023-09-25 19:0045.467.84.9668.318.712.4
2023-09-25 18:0043.666.44.9620.916.210.7
2023-09-25 17:0031.376.04.9543.712.57.2
2023-09-25 16:0032.668.64.9550.814.39.3
2023-09-25 15:0029.667.94.9563.615.610.3
2023-09-25 14:0025.472.44.9529.512.08.1
2023-09-25 13:0026.867.34.8536.512.88.3
2023-09-25 12:0026.062.64.7515.79.14.4
2023-09-25 11:0025.453.64.8540.79.14.3
2023-09-25 10:0034.544.85.3608.011.06.1
2023-09-25 09:0032.030.25.4621.710.56.0
2023-09-25 08:0030.720.44.9682.910.35.5
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.

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Last revision date: 07:07 26-09-2023