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@ARTICLE{Saathoff:4695,
author = {Saathoff, H. and Naumann, K.-H. and Möhler, O. and
Jonsson, A.M. and Hallquist, M. and Kiendler-Scharr, A. and
Mentel, T. F. and Tillmann, R. and Schurath, U.},
title = {{T}emperature dependence of yields of secondary organic
aerosols from the ozonolysis of a-pinene and limonene},
journal = {Atmospheric chemistry and physics},
volume = {9},
issn = {1680-7316},
address = {Katlenburg-Lindau},
publisher = {EGU},
reportid = {PreJuSER-4695},
pages = {1551 - 1577},
year = {2009},
note = {This work was supported by the ESF programme INTROP,
Interdisciplinary Tropospheric Research: from the Laboratory
to Global Change and the European Network of Excellence
ACCENT. We thank the AIDA team of Research Centre Karlsruhe
for the effective support during the measurement campaigns.
MH and AMJ acknowledge support by the Swedish Foundation for
Strategic Environmental Research MISTRA and Formas under
contract 214-2006-1204.},
abstract = {Secondary organic aerosol (SOA) formation has been
investigated as a function of temperature and humidity for
the ozone-initiated reaction of the two monoterpenes
alpha-pinene (243-313 K) and limonene (253-313 K) using the
84.5 m(3) aerosol chamber AIDA. This paper gives an overview
of the measurements done and presents parameters
specifically useful for aerosol yield calculations. The
ozonolysis reaction, selected oxidation products and
subsequent aerosol formation were followed using several
analytical techniques for both gas and condensed phase
characterisation. The effective densities of the SOA were
determined by comparing mass and volume size distributions
to (1.25 +/- 0.10) g cm(-3) for alpha-pinene and (1.3 +/-
0.2) g cm(-3) for limonene. The detailed aerosol dynamics
code COSIMA-SOA proved to be essential for a comprehensive
evaluation of the experimental results and for providing
parameterisations directly applicable within atmospheric
models. The COSIMA-assisted analysis succeeded to reproduce
the observed time evolutions of SOA total mass, number and
size distributions by adjusting the following properties of
two oxidation product proxies: individual yield parameters
(alpha(i)), partitioning coefficients (K-i), vapour
pressures (p(i)) and effective accommodation coefficients
(gamma(i)). For these properties temperature dependences
were derived and parameterised. Vapour pressures and
partitioning coefficients followed classical
Clausius-Clapeyron temperature dependences. From this
relationship enthalpies of vaporisation were derived for the
two more and less volatile product proxies of alpha-pinene:
(59 +/- 8) kJ mol(-1) and (24 +/- 9) kJ mol(-1), and
limonene: (55 +/- 14) kJ mol(-1) and (25 +/- 12) kJ mol(-1).
The more volatile proxy components had a notably low
enthalpy of vaporisation while the less volatile proxy
components gave enthalpies of vaporisation comparable with
those of typical products from alpha-pinene oxidation, e. g.
pinonaldehyde and pinonic acid.},
keywords = {J (WoSType)},
cin = {ICG-2},
ddc = {550},
cid = {I:(DE-Juel1)VDB791},
pnm = {Atmosphäre und Klima},
pid = {G:(DE-Juel1)FUEK406},
shelfmark = {Meteorology $\&$ Atmospheric Sciences},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000264132800003},
url = {https://juser.fz-juelich.de/record/4695},
}