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Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2022-05-26 10:0072.54.86.7725.728.220.6
2022-05-26 09:0061.54.45.3583.325.221.0
2022-05-26 08:0060.85.23.8431.823.919.1
2022-05-26 07:0047.314.42.5356.517.612.4
2022-05-26 06:0039.68.62.6516.811.26.2
2022-05-26 05:0028.614.21.9370.615.98.2
2022-05-26 04:0030.018.52.2352.614.07.3
2022-05-26 03:0031.120.61.9324.613.36.4
2022-05-26 02:0042.114.52.5367.915.88.5
2022-05-26 01:0056.011.73.5610.618.612.8
2022-05-26 00:0059.912.13.7560.820.014.6
2022-05-25 23:0049.721.62.8490.225.618.3
2022-05-25 22:0072.28.64.9690.626.018.9
2022-05-25 21:0071.015.53.8724.327.321.4
2022-05-25 20:0065.224.13.1589.730.122.4
2022-05-25 19:0064.126.92.5662.726.218.8
2022-05-25 18:0050.040.52.2442.429.621.3
2022-05-25 17:0048.941.31.8419.630.420.4
2022-05-25 16:0060.930.82.6479.228.018.7
2022-05-25 15:0065.722.52.7485.334.424.0
2022-05-25 14:0082.512.74.3608.433.322.9
2022-05-25 13:0078.211.04.2860.528.520.3
2022-05-25 12:0068.716.13.6719.027.119.2
2022-05-25 11:0068.510.34.9696.228.920.3
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: 10:07 26-05-2022