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Title:Evolution of organic aerosols in the atmosphere
Authors:Jimenez, Jose L. (Author)
Canagaratna, M. R. (Author)
Donahue, N. M. (Author)
Prevot, A. S. H. (Author)
Zhang, Q. (Author)
Kroll, J. H. (Author)
DeCarlo, P. F. (Author)
Allan, J. David (Author)
Coe, H. (Author)
Džepina, Katja (Author)
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Unknown ()
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Organic aerosol (OA) particles affect climate forcing and human health, but their sources and evolution remain poorly characterized. We present a unifying model framework describing the atmospheric evolution of OA that is constrained by high–time-resolution measurements of its composition, volatility, and oxidation state. OA and OA precursor gases evolve by becoming increasingly oxidized, less volatile, and more hygroscopic, leading to the formation of oxygenated organic aerosol (OOA), with concentrations comparable to those of sulfate aerosol throughout the Northern Hemisphere. Our model framework captures the dynamic aging behavior observed in both the atmosphere and laboratory: It can serve as a basis for improving parameterizations in regional and global models.
Keywords:secondary organic aerosol, source apportionment, aerodyne aerosol mass spectrometer, global field measurements, laboratory experiments
Year of publishing:2009
Number of pages:str. 1525-1529
Numbering:iss. 5959, Vol. 326
COBISS_ID:59051267 Link is opened in a new window
UDC:54
ISSN on article:0036-8075
URN:URN:SI:UNG:REP:S9KUP7NP
DOI:10.1126/science.1180353 Link is opened in a new window
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Title:Science
Shortened title:Science
Publisher:American Association for the Advancement of Science
ISSN:0036-8075
COBISS.SI-ID:2908687 New window

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