Central/Western
Date TimeNO2O3SO2COPM10PM2.5
2021-09-29 09:0067.778.06.8-31.723.0
2021-09-29 08:0039.485.45.2-30.522.6
2021-09-29 07:0012.7102.13.8-26.618.9
2021-09-29 06:009.2107.93.9-28.620.9
2021-09-29 05:009.1108.33.5-25.518.1
2021-09-29 04:00-96.7--24.816.3
2021-09-29 03:007.6105.42.7-27.619.4
2021-09-29 02:0019.296.63.9-28.520.4
2021-09-29 01:0014.7105.64.1-28.320.1
2021-09-29 00:0017.6109.44.3-27.718.8
2021-09-28 23:0021.1109.34.1-28.619.7
2021-09-28 22:0023.2117.54.9-30.421.1
2021-09-28 21:0020.6131.74.6-32.722.8
2021-09-28 20:0064.995.213.1-33.723.2
2021-09-28 19:0066.198.89.4-35.023.1
2021-09-28 18:0071.397.59.0-38.625.5
2021-09-28 17:0049.5136.16.2-41.225.9
2021-09-28 16:0038.2151.74.2-38.824.9
2021-09-28 15:0035.0139.73.7-35.822.9
2021-09-28 14:0037.0134.13.5-35.823.8
2021-09-28 13:0043.4129.23.5-38.023.7
2021-09-28 12:0052.795.23.7-43.426.2
2021-09-28 11:0078.267.23.6-37.523.3
2021-09-28 10:0060.383.02.8-34.620.8
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: 09:07 29-09-2021