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Date TimeNO2O3SO2COPM10PM2.5
2021-01-23 00:0093.06.74.7-61.745.6
2021-01-22 23:0088.912.85.0-57.541.4
2021-01-22 22:0093.414.55.0-61.044.3
2021-01-22 21:0098.917.95.3-52.637.2
2021-01-22 20:0094.625.44.8-44.430.7
2021-01-22 19:0097.632.94.3-45.829.3
2021-01-22 18:0090.561.44.7-42.025.9
2021-01-22 17:0050.3125.23.8-42.827.5
2021-01-22 16:0046.0137.04.1-51.534.0
2021-01-22 15:0051.7134.54.8-73.149.7
2021-01-22 14:0077.5117.76.5-91.363.0
2021-01-22 13:0090.3102.37.4-105.072.4
2021-01-22 12:00101.883.88.5-98.469.2
2021-01-22 11:0097.857.310.1-90.362.3
2021-01-22 10:00100.029.79.3-91.558.4
2021-01-22 09:00105.18.48.7-97.863.7
2021-01-22 08:00108.60.07.1-101.871.5
2021-01-22 07:00108.50.06.2-96.971.8
2021-01-22 06:0092.51.84.9-74.856.5
2021-01-22 05:0097.81.35.3-111.880.8
2021-01-22 04:00120.61.26.1-115.984.3
2021-01-22 03:00-6.7--77.757.7
2021-01-22 02:0092.95.54.2-82.659.6
2021-01-22 01:00103.85.34.4-68.349.3
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: 00:07 23-01-2021