Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2024-04-17 11:0028.539.43.3326.829.521.2
2024-04-17 10:0043.624.23.9441.933.123.4
2024-04-17 09:0049.215.84.6495.531.320.9
2024-04-17 08:0055.416.24.8469.925.819.3
2024-04-17 07:0035.023.13.7546.917.816.0
2024-04-17 06:0015.137.72.6399.814.113.5
2024-04-17 05:0018.437.02.8773.619.416.0
2024-04-17 04:0024.532.13.0886.222.216.4
2024-04-17 03:0034.229.03.5511.319.213.5
2024-04-17 02:0036.621.03.8614.322.117.3
2024-04-17 01:0050.815.64.2575.627.821.5
2024-04-17 00:0050.015.34.4707.535.225.1
2024-04-16 23:0055.414.15.1563.321.617.8
2024-04-16 22:0054.017.85.1626.329.722.1
2024-04-16 21:0056.220.24.8537.824.519.9
2024-04-16 20:0045.425.04.8571.629.421.9
2024-04-16 19:0069.212.66.6542.826.318.9
2024-04-16 18:0071.714.47.1524.924.018.4
2024-04-16 17:0042.230.03.9379.320.415.1
2024-04-16 16:0036.834.03.3363.625.418.4
2024-04-16 15:0033.240.73.3348.327.219.4
2024-04-16 14:0034.143.53.2344.024.718.3
2024-04-16 13:0049.230.54.7454.720.815.4
2024-04-16 12:0044.230.43.9410.620.714.0
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: 11:07 17-04-2024