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Date TimeNO2O3SO2COPM10PM2.5
2023-03-23 06:007.731.93.5310.617.811.0
2023-03-23 05:008.433.54.3326.728.215.2
2023-03-23 04:007.236.84.5326.010.55.5
2023-03-23 03:0010.534.84.4280.89.35.3
2023-03-23 02:0017.525.63.9300.013.89.4
2023-03-23 01:0019.126.53.9296.124.317.4
2023-03-23 00:0013.829.33.6263.221.616.2
2023-03-22 23:0012.029.23.6236.711.28.1
2023-03-22 22:006.835.14.0268.616.56.2
2023-03-22 21:007.340.22.8271.312.43.5
2023-03-22 20:0010.339.13.3277.514.28.6
2023-03-22 19:007.940.84.0295.922.116.3
2023-03-22 18:006.643.83.8300.2--
2023-03-22 17:005.646.95.6244.7--
2023-03-22 16:00-40.74.8215.8--
2023-03-22 15:00-38.74.8206.3--
2023-03-22 14:009.640.24.6---
2023-03-22 13:0010.440.54.6-8.23.7
2023-03-22 12:0014.733.14.3-11.07.1
2023-03-22 11:0013.834.24.5-11.46.5
2023-03-22 10:009.837.44.2-13.19.0
2023-03-22 09:0012.033.04.1-14.511.4
2023-03-22 08:009.830.43.9-14.712.4
2023-03-22 07:009.933.24.0-13.912.0
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