Causeway Bay
Date TimeNO2O3SO2COPM10PM2.5
2022-07-02 10:004.157.32.1299.615.16.9
2022-07-02 09:005.755.22.1292.19.11.0
2022-07-02 08:005.558.62.1278.715.04.2
2022-07-02 07:008.952.12.2278.120.39.8
2022-07-02 06:006.955.82.1293.422.79.7
2022-07-02 05:004.458.92.5274.618.85.4
2022-07-02 04:00-60.0--6.01.3
2022-07-02 03:003.555.92.3276.49.12.1
2022-07-02 02:004.551.92.4278.019.37.5
2022-07-02 01:006.649.22.3276.512.13.6
2022-07-02 00:0012.444.12.3280.512.54.4
2022-07-01 23:0015.143.22.5294.515.05.0
2022-07-01 22:0028.631.62.8339.719.08.6
2022-07-01 21:0029.330.82.8414.922.410.3
2022-07-01 20:0037.024.43.0411.219.79.4
2022-07-01 19:0030.626.72.9422.322.912.9
2022-07-01 18:0041.122.33.0489.919.811.3
2022-07-01 17:0034.424.92.9426.311.59.3
2022-07-01 16:0037.622.33.2475.610.36.5
2022-07-01 15:0044.216.73.6571.820.212.1
2022-07-01 14:0035.027.83.1443.516.98.8
2022-07-01 13:0049.521.34.3459.117.28.6
2022-07-01 12:0042.018.04.2429.619.410.8
2022-07-01 11:0049.915.54.2518.323.514.3
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 02-07-2022