Ying Zhang1, Zhengqiang Li 1, Juan Cuesta2, Donghui Li1, Peng Wei1, Yisong Xie1, Lei Li1

  • 1 State Environmental Protection Key Laboratory of Satellite Remote Sensing, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, PO Box 100101, Beijing, China
  • 2 Laboratoire Inter-Universitaire des Systèmes Atmosphériques, Université Paris Est Créteil, PO Box 94010, Créteil Cedex, France

Received: May 18, 2014
Revised: August 11, 2014
Accepted: October 1, 2014
Download Citation: ||https://doi.org/10.4209/aaqr.2014.05.0099  

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Cite this article:
Zhang, Y., Li, Z., Cuesta, J., Li, D., Wei, P., Xie, Y. and Li, L. (2015). Aerosol Column Size Distribution and Water Uptake Observed during a Major Haze Outbreak over Beijing on January 2013. Aerosol Air Qual. Res. 15: 945-957. https://doi.org/10.4209/aaqr.2014.05.0099


  • Observation of significant enhancement of aerosol growth rate on haze day.
  • The dramatic increase of water-soluble matter is due to aerosol water uptake.
  • A fairly good correlation between water-soluble matter and water content is found.



Haze can cause serious atmospheric pollution affecting air quality, human health and even global climate. In order to investigate aerosol columnar size distribution and water uptake during haze evolution, we analyse ground-based observations during an extreme winter pollution case at Beijing on 12 January 2013 (haze day) as compared to those registered on 9 January (non-haze day). We study the evolution of the aerosol size distribution using retrievals from a ground-based CIMEL sun-sky radiometer of the Aerosol Robotic Network (AERONET). Our results show that while the hourly volume growth rate of a sub-micron fine mode presented in the size distribution remains below 0.010 µm3/µm2/hr during the non-haze day, it can rapidly increase during haze pollution event, reaching a maximum value of 0.075 µm3/µm2/hr. The mean size of fine mode particles becomes larger during the pollution event, while it is reduced for coarse mode particles. The mean volume of water uptake is 0.013 µm3/µm2 in haze day, being about 13 times larger than that in non-haze day. Meanwhile, the volume of water-soluble inorganic aerosols increases from 0.036 to 0.298 µm3/µm2, partly explained by the increase of water uptake during the haze event and also likely by accumulation of particle matters due to stagnating atmospheric conditions. The increase of water-soluble particle volume, which is enhanced by water uptake, significantly contributes to haze evolution.

Keywords: Haze; Remote sensing; Beijing; Aerosol size distribution; Water uptake

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