Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2023-12-05 23:00126.69.27.7989.395.872.6
2023-12-05 22:00129.614.46.81,026.291.771.6
2023-12-05 21:00129.619.87.2999.981.461.3
2023-12-05 20:00136.221.99.11,094.862.647.2
2023-12-05 19:00158.214.211.3923.065.447.9
2023-12-05 18:00170.220.09.91,098.777.555.0
2023-12-05 17:00155.418.28.6976.069.848.5
2023-12-05 16:00157.619.28.5896.863.742.6
2023-12-05 15:00154.213.49.0970.583.151.7
2023-12-05 14:00134.911.510.3891.375.350.8
2023-12-05 13:00140.610.711.8-86.654.7
2023-12-05 12:00122.810.111.6-81.252.2
2023-12-05 11:00106.09.810.4-81.147.5
2023-12-05 10:0093.09.99.2-74.149.8
2023-12-05 09:0065.59.76.5786.364.045.1
2023-12-05 08:0060.48.56.2764.368.546.6
2023-12-05 07:0057.08.55.3667.860.741.4
2023-12-05 06:0052.310.54.91,301.765.645.0
2023-12-05 05:0052.912.74.41,522.457.538.1
2023-12-05 04:0060.511.54.5741.060.038.9
2023-12-05 03:0062.313.44.0754.064.342.1
2023-12-05 02:0069.512.34.5806.066.342.4
2023-12-05 01:0081.09.16.9981.473.946.4
2023-12-05 00:0082.3-5.4848.671.746.3
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: 23:07 05-12-2023