Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2023-02-08 05:0018.868.82.7285.618.89.2
2023-02-08 04:0022.464.12.9328.416.87.5
2023-02-08 03:0023.167.02.8359.219.111.8
2023-02-08 02:0022.264.52.8408.031.222.6
2023-02-08 01:0033.256.73.4423.536.926.9
2023-02-08 00:0035.543.53.4364.430.822.4
2023-02-07 23:0052.333.54.3389.833.224.5
2023-02-07 22:0050.842.83.8411.942.133.1
2023-02-07 21:0050.637.34.4508.535.324.1
2023-02-07 20:0052.822.85.2810.530.820.9
2023-02-07 19:0051.819.54.5759.433.621.3
2023-02-07 18:0077.812.79.31,049.834.122.7
2023-02-07 17:0079.08.410.0886.338.323.7
2023-02-07 16:0081.17.99.4952.334.721.6
2023-02-07 15:0080.37.29.8840.031.819.3
2023-02-07 14:0068.9-7.0695.131.420.3
2023-02-07 13:0064.4-6.2857.828.617.6
2023-02-07 12:0057.6-5.6474.228.815.3
2023-02-07 11:0065.9-7.4799.534.616.5
2023-02-07 10:0086.65.89.81,028.936.522.9
2023-02-07 09:0083.76.412.81,267.439.826.5
2023-02-07 08:0073.25.39.6969.429.819.0
2023-02-07 07:0071.87.85.9794.123.115.0
2023-02-07 06:0053.515.63.6637.717.114.1
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 08-02-2023