Changes in aerosol size- and phase distributions due to physical and chemical processes in fog
Open Access
- 1 November 1992
- journal article
- Published by Stockholm University Press in Tellus B: Chemical and Physical Meteorology
- Vol. 44 (5) , 489-504
- https://doi.org/10.1034/j.1600-0889.1992.t01-4-00004.x
Abstract
Measurements of the scavenging efficiency of aerosol particles in fog are presented. The scavenging efficiency as a function of size for accumulation-mode particles is presented, along with efficiencies for the total number, accumulation-mode number, and accumulation-mode volume. Particles below ca. 0.3 µm diameter were not efficiently scavenged in the fogs. The scavenging efficiency for accumulation-mode particles showed two steps, indicating that the hygroscopic/hydrophobic nature of the aerosol appeared to have been a controlling factor in determining scavenging efficiencies. Observed changes in the aerosol size distributions are discussed in reference to the processes (i.e., in-cloud scavenging, aqueous-phase reactions) potentially influencing them. DOI: 10.1034/j.1600-0889.1992.t01-4-00004.xKeywords
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