Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2023-02-08 05:009.483.81.6-12.36.3
2023-02-08 04:0010.381.51.6-15.89.6
2023-02-08 03:0010.882.01.7-18.112.6
2023-02-08 02:0014.179.41.5-20.915.5
2023-02-08 01:0019.673.71.5-20.315.1
2023-02-08 00:0027.258.91.7-20.516.5
2023-02-07 23:0026.165.41.6-26.022.5
2023-02-07 22:0039.759.82.0-28.725.5
2023-02-07 21:0054.740.42.4-18.015.3
2023-02-07 20:0067.116.62.4-14.510.5
2023-02-07 19:0076.212.53.4-18.911.0
2023-02-07 18:0076.215.02.9-17.510.7
2023-02-07 17:0069.620.93.0-22.611.8
2023-02-07 16:0073.717.23.5-19.112.0
2023-02-07 15:0063.522.15.2-14.510.0
2023-02-07 14:0051.429.74.8-7.55.2
2023-02-07 13:0031.946.24.0-12.97.0
2023-02-07 12:0050.327.34.5-21.310.6
2023-02-07 11:0062.216.84.8-12.58.1
2023-02-07 10:0059.818.14.6-13.29.4
2023-02-07 09:0069.58.85.4-15.011.9
2023-02-07 08:0049.919.03.9-14.411.6
2023-02-07 07:0024.143.73.8-14.710.5
2023-02-07 06:0013.158.03.7-10.79.5
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