Changes in aerosol size- and phase distributions due to physical and chemical processes in fog
1992; Taylor & Francis; Volume: 44; Issue: 5 Linguagem: Inglês
10.3402/tellusb.v44i5.15563
ISSN1600-0889
AutoresKevin J. Noone, J. A. Ogren, A. Hallberg, Jost Heintzenberg, J. Ström, Hans‐Christen Hansson, Birgitta Svenningsson, Alfred Wiedensohler, S. Fuzzi, M. C. Facchini, Beate Arends, A. Berner,
Tópico(s)Wind and Air Flow Studies
ResumoMeasurements 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.
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