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Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2023-09-24 18:0071.534.93.7405.233.818.4
2023-09-24 17:0049.948.53.1339.731.618.6
2023-09-24 16:0055.842.43.7400.833.721.4
2023-09-24 15:0079.527.55.4453.834.322.4
2023-09-24 14:0063.337.54.3399.235.623.2
2023-09-24 13:0071.837.44.3448.939.024.3
2023-09-24 12:0071.126.24.3512.628.316.1
2023-09-24 11:0052.027.53.7371.231.818.8
2023-09-24 10:0049.719.64.3390.734.221.9
2023-09-24 09:0046.316.23.8336.023.414.6
2023-09-24 08:0028.621.82.7304.420.913.1
2023-09-24 07:0030.623.42.9271.915.68.8
2023-09-24 06:0027.624.92.9299.313.06.3
2023-09-24 05:0020.727.72.6296.514.98.9
2023-09-24 04:0019.628.92.8220.016.59.7
2023-09-24 03:0018.028.62.9348.918.210.2
2023-09-24 02:0022.528.22.8435.318.79.5
2023-09-24 01:0028.028.82.6269.025.114.5
2023-09-24 00:0043.521.43.5490.524.612.3
2023-09-23 23:0048.525.63.1295.324.613.3
2023-09-23 22:0045.227.92.9373.630.717.9
2023-09-23 21:0054.329.02.8436.929.515.1
2023-09-23 20:0060.027.43.3402.430.016.4
2023-09-23 19:0072.125.44.0413.828.215.0
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: 18:07 24-09-2023