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Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2022-01-23 01:0036.540.82.5418.119.011.5
2022-01-23 00:0031.745.92.3398.810.77.1
2022-01-22 23:0034.941.92.2413.514.910.7
2022-01-22 22:0035.739.72.6492.213.37.5
2022-01-22 21:0044.434.62.9499.821.713.7
2022-01-22 20:0051.629.13.6644.616.910.8
2022-01-22 19:0049.044.23.3729.920.513.6
2022-01-22 18:0062.126.94.4879.220.212.3
2022-01-22 17:0070.919.34.7915.521.212.7
2022-01-22 16:0080.217.56.0861.610.56.5
2022-01-22 15:0079.612.76.2834.517.112.5
2022-01-22 14:0070.518.55.2777.015.911.7
2022-01-22 13:0066.017.14.8732.916.812.1
2022-01-22 12:0077.611.85.3733.415.410.1
2022-01-22 11:0063.717.74.0665.911.37.1
2022-01-22 10:0059.419.33.5602.410.26.4
2022-01-22 09:0057.218.93.8625.614.210.3
2022-01-22 08:0045.920.83.3574.99.38.5
2022-01-22 07:0039.825.62.7501.512.210.2
2022-01-22 06:0023.943.72.1463.32.7-
2022-01-22 05:0028.043.92.2535.17.03.5
2022-01-22 04:0028.746.72.1954.414.210.3
2022-01-22 03:0040.439.92.5749.64.33.1
2022-01-22 02:0040.141.52.2565.211.17.6
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.

Last revision date: 01:07 23-01-2022