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Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2023-05-28 17:0022.7103.02.7-20.117.0
2023-05-28 16:0017.298.12.0-18.815.2
2023-05-28 15:0017.195.82.1-18.215.0
2023-05-28 14:0014.488.42.1-13.811.6
2023-05-28 13:0015.381.42.1-14.811.9
2023-05-28 12:0016.773.01.7-15.811.3
2023-05-28 11:0024.362.82.1-17.312.4
2023-05-28 10:0026.359.22.2-16.011.2
2023-05-28 09:0022.754.22.1-17.612.1
2023-05-28 08:0025.651.02.1-15.710.2
2023-05-28 07:0016.259.22.2-13.48.7
2023-05-28 06:0011.264.42.0-12.69.0
2023-05-28 05:009.663.01.9-9.67.5
2023-05-28 04:0013.756.22.1-10.610.0
2023-05-28 03:0013.654.82.3-11.910.8
2023-05-28 02:00-56.9--12.110.4
2023-05-28 01:0013.955.21.9-15.511.9
2023-05-28 00:0017.551.31.9-18.414.6
2023-05-27 23:0018.950.21.9-19.214.9
2023-05-27 22:0020.755.31.9-21.716.9
2023-05-27 21:0028.358.32.1-20.916.9
2023-05-27 20:0018.765.42.1-20.116.1
2023-05-27 19:0040.048.42.2-21.816.2
2023-05-27 18:0038.744.92.1-21.015.2
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: 17:07 28-05-2023