20.500.12556/RUNG-6456
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.
secondary organic aerosol
source apportionment
aerodyne aerosol mass spectrometer
global field measurements
laboratory experiments
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true
false
Angleški jezik
Ni določen
Neznano
2021-04-10 22:48:00
2021-04-11 15:53:12
2023-06-09 03:43:17
0000-00-00 00:00:00
2009
0
0
str. 1525-1529
iss. 5959
Vol. 326
2009
0000-00-00
NiDoloceno
NiDoloceno
NiDoloceno
0000-00-00
0000-00-00
0000-00-00
59051267
54
0036-8075
10.1126/science.1180353
URN:SI:UNG:REP:S9KUP7NP
Univerza v Novi Gorici
0
1
0