Past 24 Hours Pollutant Concentration Summary

Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2019-08-18 04:0044.912.62.6730.915.48.8
2019-08-18 03:0053.89.03.1887.114.39.0
2019-08-18 02:0033.420.01.7730.820.715.6
2019-08-18 01:0056.46.64.6874.927.620.3
2019-08-18 00:0065.03.85.91,104.827.720.9
2019-08-17 23:0066.96.75.0801.017.913.4
2019-08-17 22:0039.118.31.9594.021.715.6
2019-08-17 21:0074.26.84.5902.731.223.6
2019-08-17 20:0086.54.26.3997.731.724.5
2019-08-17 19:0089.94.07.71,024.928.921.0
2019-08-17 18:0083.04.57.2828.924.917.9
2019-08-17 17:0061.714.83.1656.528.820.5
2019-08-17 16:0097.08.06.5873.445.333.5
2019-08-17 15:00123.94.69.5972.533.324.9
2019-08-17 14:0089.67.57.0836.433.425.7
2019-08-17 13:0095.55.37.31,024.835.126.2
2019-08-17 12:0089.17.74.2855.228.515.5
2019-08-17 11:0084.18.15.3929.628.916.9
2019-08-17 10:0085.35.78.9918.623.313.3
2019-08-17 09:00100.56.26.7711.125.516.0
2019-08-17 08:0067.710.84.1690.826.618.0
2019-08-17 07:0054.414.62.8753.815.88.0
2019-08-17 06:0041.622.42.2736.716.08.0
2019-08-17 05:0038.917.12.3747.817.39.6
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:04:07 18-08-2019