Articles | Volume 17, issue 10
https://doi.org/10.5194/acp-17-6373-2017
https://doi.org/10.5194/acp-17-6373-2017
Research article
 | 
29 May 2017
Research article |  | 29 May 2017

Chemical and isotopic composition of secondary organic aerosol generated by α-pinene ozonolysis

Carl Meusinger, Ulrike Dusek, Stephanie M. King, Rupert Holzinger, Thomas Rosenørn, Peter Sperlich, Maxime Julien, Gerald S. Remaud, Merete Bilde, Thomas Röckmann, and Matthew S. Johnson

Data sets

Data files for Meusinger et al. alpha pinene SOA paper ACP 2017 M. S. Johnson http://www.erda.dk/public/archives/YXJjaGl2ZS16OVF4em0=/published-archive.html

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Short summary
Isotope studies can constrain budgets of secondary organic aerosol (SOA) that is pivotal to air pollution and climate. SOA from α-pinene ozonolysis was found to be enriched in 13C relative to the precursor. The observed difference in 13C between the gas and particle phases may arise from isotope-dependent changes in branching ratios. Alternatively, some gas-phase products involve carbon atoms from highly enriched and depleted sites, giving a non-kinetic origin to the observed fractionations.
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