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Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2021-10-22 04:0010.837.46.6350.05.43.1
2021-10-22 03:0013.943.86.3350.47.44.9
2021-10-22 02:0017.243.16.4378.810.95.5
2021-10-22 01:0019.739.46.8378.716.08.0
2021-10-22 00:0028.329.56.9398.820.910.5
2021-10-21 23:0038.720.07.2417.321.99.1
2021-10-21 22:0042.318.77.3438.624.812.6
2021-10-21 21:0038.421.27.3465.826.212.1
2021-10-21 20:0049.615.87.6494.028.613.2
2021-10-21 19:0049.718.77.4467.422.59.5
2021-10-21 18:0049.920.97.8451.319.910.4
2021-10-21 17:0045.721.57.2424.025.311.2
2021-10-21 16:0057.414.28.1512.825.713.8
2021-10-21 15:0057.911.48.4522.026.315.3
2021-10-21 14:0046.013.07.3488.125.412.2
2021-10-21 13:0046.420.47.3471.637.617.0
2021-10-21 12:0059.920.89.4598.631.514.4
2021-10-21 11:0051.934.97.8273.718.89.2
2021-10-21 10:0059.723.58.2269.121.010.7
2021-10-21 09:0041.024.88.1280.216.810.4
2021-10-21 08:0037.019.67.2291.210.06.0
2021-10-21 07:0022.116.36.7225.411.68.9
2021-10-21 06:0015.225.36.5190.72.1-
2021-10-21 05:009.637.16.3174.76.54.4
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.

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Last revision date: 04:07 22-10-2021