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North
Date TimeNO2O3SO2COPM10PM2.5
2023-03-23 06:0031.316.91.7433.218.717.3
2023-03-23 05:009.844.21.1356.221.219.6
2023-03-23 04:007.648.71.6311.621.319.0
2023-03-23 03:0011.845.81.3327.820.118.6
2023-03-23 02:0014.342.21.6327.520.517.0
2023-03-23 01:0012.339.81.4343.020.615.7
2023-03-23 00:0014.337.71.4371.919.816.6
2023-03-22 23:0016.337.81.2388.821.516.0
2023-03-22 22:0020.634.81.4383.323.514.2
2023-03-22 21:0019.237.71.4405.421.012.8
2023-03-22 20:0016.342.31.3383.617.412.6
2023-03-22 19:0018.736.71.2364.313.311.3
2023-03-22 18:0017.736.41.2337.59.58.5
2023-03-22 17:0018.736.81.4328.27.85.5
2023-03-22 16:0017.437.51.2322.710.68.7
2023-03-22 15:0016.435.41.2313.216.913.2
2023-03-22 14:0014.139.21.2340.821.713.4
2023-03-22 13:0012.641.11.3313.323.213.1
2023-03-22 12:0018.935.21.3328.420.312.0
2023-03-22 11:0019.635.91.3342.418.412.9
2023-03-22 10:0018.440.21.1359.417.89.2
2023-03-22 09:0024.933.71.2387.718.19.4
2023-03-22 08:0020.634.91.0379.418.215.2
2023-03-22 07:0023.236.01.3421.214.910.0
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: 06:07 23-03-2023