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@ARTICLE{Maclean:903147,
author = {Maclean, Adrian M. and Li, Ying and Crescenzo, Giuseppe V.
and Smith, Natalie R. and Karydis, Vlassis A. and Tsimpidi,
Alexandra P. and Butenhoff, Christopher L. and Faiola, Celia
L. and Lelieveld, Jos and Nizkorodov, Sergey A. and
Shiraiwa, Manabu and Bertram, Allan K.},
title = {{G}lobal {D}istribution of the {P}hase {S}tate and {M}ixing
{T}imes within {S}econdary {O}rganic {A}erosol {P}articles
in the {T}roposphere {B}ased on {R}oom-{T}emperature
{V}iscosity {M}easurements},
journal = {ACS earth and space chemistry},
volume = {5},
number = {12},
issn = {2472-3452},
address = {Washington, DC},
publisher = {ACS Publications},
reportid = {FZJ-2021-04871},
pages = {3458-},
year = {2021},
note = {Bitte Post-print ergänzen},
abstract = {Information on the global distributions of secondary
organic aerosol (SOA) phase state and mixing times within
SOA is needed to predict the impact of SOA on air quality,
climate, and atmospheric chemistry; nevertheless, such
information is rare. In this study, we developed
parameterizations for viscosity as a function of relative
humidity (RH) and temperature based on room-temperature
viscosity data for simulated pine tree SOA and toluene SOA.
The viscosity parameterizations were then used together with
tropospheric RH and temperature fields to predict the SOA
phase state and mixing times of water and organic molecules
within SOA in the troposphere for 200 nm particles. Based on
our results, the glassy state can often occur, and the
mixing times of water can often exceed 1 h within SOA at
altitudes >6 km. Furthermore, the mixing times of organic
molecules within SOA can often exceed 1 h throughout most of
the free troposphere (i.e., ≳1 km in altitude). In most of
the planetary boundary layer (i.e., ≲1 km in altitude),
the glassy state is not important, and the mixing times of
water and organic molecules are less than 1 h. Our results
are qualitatively consistent with the results from Shiraiwa
et al. (Nat. Commun., 2017), although there are quantitative
differences. Additional studies are needed to better
understand the reasons for these differences.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {2111 - Air Quality (POF4-211)},
pid = {G:(DE-HGF)POF4-2111},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000757012400016},
doi = {10.1021/acsearthspacechem.1c00296},
url = {https://juser.fz-juelich.de/record/903147},
}