Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2023-09-22 00:0037.320.25.7446.913.911.1
2023-09-21 23:0035.117.45.6424.114.911.6
2023-09-21 22:0027.734.45.5424.016.513.7
2023-09-21 21:0028.633.35.6392.618.013.8
2023-09-21 20:0040.841.76.3443.019.814.0
2023-09-21 19:0045.570.56.6452.720.813.6
2023-09-21 18:0030.8115.07.4378.220.113.1
2023-09-21 17:0032.6128.27.3403.017.011.1
2023-09-21 16:0035.793.18.3374.711.97.5
2023-09-21 15:0028.780.58.3407.013.89.7
2023-09-21 14:0033.977.311.3355.912.58.2
2023-09-21 13:0040.156.616.8378.713.28.1
2023-09-21 12:0030.354.611.8359.012.48.0
2023-09-21 11:0033.841.810.7443.211.97.0
2023-09-21 10:0036.225.110.4471.88.84.1
2023-09-21 09:0029.915.76.3337.48.05.6
2023-09-21 08:0018.210.65.9363.16.44.7
2023-09-21 07:0014.66.95.7332.65.33.2
2023-09-21 06:0014.68.25.4298.04.22.3
2023-09-21 05:0014.58.25.3347.25.93.8
2023-09-21 04:0014.810.55.6311.34.12.7
2023-09-21 03:0010.311.95.6318.73.61.7
2023-09-21 02:0015.113.15.9367.84.92.9
2023-09-21 01:00----5.03.1
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: 00:07 22-09-2023