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Tsuen Wan
Date TimeNO2O3SO2COPM10PM2.5
2021-01-22 23:00112.50.99.9872.161.848.1
2021-01-22 22:00109.81.05.9732.356.644.4
2021-01-22 21:00111.71.26.0673.351.840.9
2021-01-22 20:00108.63.75.6617.436.028.2
2021-01-22 19:00110.76.25.2561.940.832.5
2021-01-22 18:00118.64.811.1566.142.934.3
2021-01-22 17:00----34.223.7
2021-01-22 16:00101.251.64.4854.137.628.7
2021-01-22 15:0081.158.84.7875.058.444.8
2021-01-22 14:0098.761.66.1817.675.858.4
2021-01-22 13:0096.455.56.4831.970.856.9
2021-01-22 12:0093.326.98.3928.171.256.0
2021-01-22 11:00104.317.39.8901.978.558.3
2021-01-22 10:00104.67.310.5981.180.858.8
2021-01-22 09:0097.02.812.91,163.972.851.7
2021-01-22 08:0092.10.410.31,108.568.547.7
2021-01-22 07:0091.60.310.21,134.071.752.3
2021-01-22 06:0089.10.98.31,153.875.555.4
2021-01-22 05:0090.70.97.11,161.375.354.8
2021-01-22 04:0087.90.67.01,131.979.058.3
2021-01-22 03:0090.60.87.71,125.288.564.3
2021-01-22 02:00108.40.87.61,231.7113.981.1
2021-01-22 01:00----104.574.8
2021-01-22 00:00113.93.84.41,164.843.832.6
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: 23:07 22-01-2021