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Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2023-12-04 10:0041.039.55.5641.556.138.1
2023-12-04 09:0046.122.25.4650.565.139.1
2023-12-04 08:0042.023.25.6629.767.937.5
2023-12-04 07:0034.232.45.3570.658.533.5
2023-12-04 06:0026.743.95.0542.346.728.9
2023-12-04 05:0015.077.65.0475.933.322.6
2023-12-04 04:0014.182.94.8439.032.922.6
2023-12-04 03:0014.487.85.0465.336.323.2
2023-12-04 02:0017.890.15.9470.837.226.7
2023-12-04 01:00----44.332.1
2023-12-04 00:0035.980.86.6638.245.932.4
2023-12-03 23:0032.084.67.2669.945.432.1
2023-12-03 22:0038.081.96.8705.449.435.4
2023-12-03 21:0051.467.36.6763.849.035.4
2023-12-03 20:0044.780.76.4746.245.733.0
2023-12-03 19:0057.375.56.7697.643.430.2
2023-12-03 18:0087.553.98.9633.644.829.7
2023-12-03 17:0085.955.48.7622.638.526.8
2023-12-03 16:0088.843.89.2654.735.225.8
2023-12-03 15:0061.866.47.6618.532.524.4
2023-12-03 14:0055.360.36.9613.729.021.5
2023-12-03 13:0051.849.56.6654.832.823.8
2023-12-03 12:0032.060.25.9621.435.124.8
2023-12-03 11:0029.456.25.4587.040.328.0
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: 10:07 04-12-2023