Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2022-05-20 11:00-39.68.8574.631.515.8
2022-05-20 10:0072.837.27.8564.622.913.3
2022-05-20 09:0033.961.86.2504.723.616.2
2022-05-20 08:0033.062.06.1513.624.316.4
2022-05-20 07:0029.059.56.4507.022.715.6
2022-05-20 06:0012.867.36.3421.522.214.1
2022-05-20 05:0010.384.26.5412.022.613.8
2022-05-20 04:007.989.76.8390.817.610.6
2022-05-20 03:0013.081.06.2391.517.912.3
2022-05-20 02:0020.267.76.5462.520.513.3
2022-05-20 01:0031.675.47.2479.824.614.8
2022-05-20 00:0031.391.27.1503.427.816.1
2022-05-19 23:0042.878.47.3549.032.120.7
2022-05-19 22:0062.651.77.7591.836.023.2
2022-05-19 21:00109.819.810.5604.539.323.5
2022-05-19 20:00107.635.511.3535.129.614.6
2022-05-19 19:0079.867.711.0464.927.111.3
2022-05-19 18:0053.197.58.3422.526.411.5
2022-05-19 17:0047.4108.38.6426.531.613.7
2022-05-19 16:0059.1102.210.3437.130.712.4
2022-05-19 15:0058.6102.39.4435.928.111.9
2022-05-19 14:0062.5101.59.3459.427.011.6
2022-05-19 13:0061.790.08.8466.320.810.1
2022-05-19 12:0027.0107.37.4418.619.910.5
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: 11:07 20-05-2022