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Date TimeNO2O3SO2COPM10PM2.5
2024-05-16 04:0013.6144.92.3313.812.2-
2024-05-16 03:0012.2144.62.4302.810.3-
2024-05-16 02:0015.4141.52.4383.612.3-
2024-05-16 01:0021.6139.32.1398.315.3-
2024-05-16 00:0023.7144.31.9376.817.717.4
2024-05-15 23:0018.6158.92.1382.419.815.4
2024-05-15 22:0024.1154.71.7455.717.516.5
2024-05-15 21:0017.6162.71.6304.016.916.6
2024-05-15 20:0019.9162.41.6374.018.415.7
2024-05-15 19:0030.6156.31.9610.215.8-
2024-05-15 18:0021.4164.42.0547.219.1-
2024-05-15 17:0016.8171.62.2362.223.521.5
2024-05-15 16:0013.8176.12.1318.416.6-
2024-05-15 15:0014.2168.22.2325.416.516.4
2024-05-15 14:0016.4161.82.3333.824.116.7
2024-05-15 13:0014.2161.42.7333.526.917.4
2024-05-15 12:0014.0155.42.9269.626.414.4
2024-05-15 11:0016.7137.92.9289.721.511.9
2024-05-15 10:0018.5122.92.7263.120.510.5
2024-05-15 09:0023.099.52.5309.524.311.6
2024-05-15 08:0032.085.92.3415.621.613.6
2024-05-15 07:0040.277.82.0358.520.313.1
2024-05-15 06:0020.8107.71.9321.922.712.1
2024-05-15 05:0013.9127.81.7299.621.611.4
Remarks:

(1) Time shown is in Hong Kong time.

(2) Concentration shown is in microgram per cubic metre (µg/m3).

(3) Abbreviation:
NO2 - nitrogen dioxide, O3 - ozone,
SO2 - sulphur dioxide, CO - carbon monoxide,
PM10 - respirable suspended particulates,
PM2.5 - fine suspended particulates

(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: 04:07 16-05-2024