Evolution of organic aerosols in the atmosphere
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.
2009
2021-04-10 22:48:00
1033
secondary organic aerosol, source apportionment, aerodyne aerosol mass spectrometer, global field measurements, laboratory experiments
Jose L.
Jimenez
70
M. R.
Canagaratna
70
N. M.
Donahue
70
A. S. H.
Prevot
70
Q.
Zhang
70
J. H.
Kroll
70
P. F.
DeCarlo
70
J. David
Allan
70
H.
Coe
70
Katja
Džepina
70
COBISS_ID
3
59051267
UDK
4
54
ISSN pri članku
9
0036-8075
DOI
15
10.1126/science.1180353
NUK URN
18
URN:SI:UNG:REP:S9KUP7NP
Jimenez_Science_2009.pdf
738616
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0
Izvorni URL
2021-04-11 11:52:08