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Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2023-12-08 05:00-45.1--25.913.1
2023-12-08 04:0054.645.93.3472.326.413.4
2023-12-08 03:0062.141.83.4475.423.211.5
2023-12-08 02:0079.728.64.0502.327.013.2
2023-12-08 01:00100.315.95.4676.030.613.8
2023-12-08 00:00110.411.86.5754.633.317.0
2023-12-07 23:00118.610.17.9750.736.319.3
2023-12-07 22:00122.712.66.7758.139.120.7
2023-12-07 21:00112.521.06.1749.341.021.4
2023-12-07 20:00104.128.46.2703.844.024.2
2023-12-07 19:0091.549.46.6783.938.721.6
2023-12-07 18:0081.263.76.8697.639.520.1
2023-12-07 17:0078.587.36.8635.834.216.1
2023-12-07 16:0095.734.46.1700.934.016.5
2023-12-07 15:0098.335.16.2489.021.59.4
2023-12-07 14:0090.937.26.4471.232.918.2
2023-12-07 13:00112.419.27.0599.837.916.2
2023-12-07 12:00106.214.69.0664.137.114.7
2023-12-07 11:00119.310.011.0883.343.421.7
2023-12-07 10:00104.812.28.1632.343.824.8
2023-12-07 09:00100.411.08.6653.337.120.6
2023-12-07 08:0083.018.97.4592.929.917.9
2023-12-07 07:0082.28.86.2597.023.615.1
2023-12-07 06:0057.215.03.3465.216.09.8
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: 05:07 08-12-2023