Past 24 Hours Pollutant Concentration Summary

Tung Chung
Date TimeNO2O3SO2COPM10PM2.5
2019-07-21 04:0043.54.29.0481.216.18.7
2019-07-21 03:0044.14.29.1475.818.09.6
2019-07-21 02:0043.44.19.1516.319.711.2
2019-07-21 01:0042.64.09.0536.317.49.6
2019-07-21 00:0035.04.58.7504.515.88.3
2019-07-20 23:0038.47.48.5469.314.39.2
2019-07-20 22:0028.521.28.3408.410.67.4
2019-07-20 21:0017.242.98.1374.511.06.6
2019-07-20 20:0036.024.88.3459.114.88.7
2019-07-20 19:0051.88.29.0532.114.710.3
2019-07-20 18:0046.019.78.6457.712.68.4
2019-07-20 17:0036.733.38.7377.718.610.3
2019-07-20 16:0060.99.09.2533.924.914.0
2019-07-20 15:0062.69.39.1446.914.47.8
2019-07-20 14:0045.620.88.3456.016.79.4
2019-07-20 13:0024.454.68.3382.524.213.5
2019-07-20 12:0014.253.88.5352.825.512.8
2019-07-20 11:0011.356.28.5338.224.811.7
2019-07-20 10:0013.651.58.3330.323.611.9
2019-07-20 09:0018.843.78.4376.221.111.3
2019-07-20 08:0036.816.99.2479.318.610.4
2019-07-20 07:0029.716.98.8480.721.113.1
2019-07-20 06:0024.519.28.0437.219.711.3
2019-07-20 05:0025.017.18.6405.218.611.1
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:04:07 21-07-2019