Central
Date TimeNO2O3SO2COPM10PM2.5
2023-04-02 18:0064.453.92.4716.635.529.1
2023-04-02 17:0061.353.92.4674.625.923.5
2023-04-02 16:0055.259.22.3716.724.922.0
2023-04-02 15:0064.947.32.4736.226.822.1
2023-04-02 14:0057.743.72.3730.929.322.5
2023-04-02 13:0060.839.22.3739.726.518.4
2023-04-02 12:0049.646.72.1703.326.519.7
2023-04-02 11:0054.541.32.2787.118.216.3
2023-04-02 10:0058.039.62.0713.310.69.2
2023-04-02 09:0053.939.42.3679.822.214.2
2023-04-02 08:0048.944.32.0637.522.814.9
2023-04-02 07:0036.560.51.9597.718.716.7
2023-04-02 06:0030.571.51.9594.420.016.6
2023-04-02 05:0023.478.61.8574.921.117.6
2023-04-02 04:0024.078.22.0572.722.016.0
2023-04-02 03:00-68.5--16.613.5
2023-04-02 02:0033.466.31.7618.310.7-
2023-04-02 01:0046.256.91.9663.017.215.9
2023-04-02 00:0067.540.02.3765.126.321.4
2023-04-01 23:0073.538.92.5756.538.431.0
2023-04-01 22:0077.441.52.5819.437.032.7
2023-04-01 21:0070.356.52.8886.342.037.7
2023-04-01 20:0076.751.42.7890.539.834.8
2023-04-01 19:0084.946.12.6936.937.932.1
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: 18:07 02-04-2023