Enhanced Volatile Organic Compounds emissions and organic aerosol mass increase the oligomer content of atmospheric aerosols

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dc.contributor.author Kourtchev, Ivan
dc.contributor.author Giorio, Chiara
dc.contributor.author Manninen, Antti
dc.contributor.author Wilson, Eoin
dc.contributor.author Mahon, Brendan
dc.contributor.author Aalto, Juho
dc.contributor.author Kajos, Maija
dc.contributor.author Venables, Dean S.
dc.contributor.author Ruuskanen, Taina
dc.contributor.author Levula, Janne
dc.contributor.author Loponen, Matti
dc.contributor.author Connors, Sarah
dc.contributor.author Harris, Neil
dc.contributor.author Zhao, Defeng
dc.contributor.author Kiendler-Scharr, Astrid
dc.contributor.author Mentel, T. F.
dc.contributor.author Rudich, Yinon
dc.contributor.author Hallquist, Mattias
dc.contributor.author Doussin, Jean-Francois
dc.contributor.author Maenhaut, Willy
dc.contributor.author Bäck, Jaana
dc.contributor.author Petäjä, Tuukka
dc.contributor.author Wenger, John C.
dc.contributor.author Kulmala, Markku
dc.contributor.author Kalberer, Markus
dc.date.accessioned 2016-10-21T10:59:59Z
dc.date.available 2016-10-21T10:59:59Z
dc.date.issued 2016-10-13
dc.identifier.citation KOURTCHEV, I., GIORIO, C., MANNINEN, A., WILSON, E., MAHON, B., AALTO, J., KAJOS, M., VENABLES, D., RUUSKANEN, T., LEVULA, J., LOPONEN, M., CONNORS, S., HARRIS, N., ZHAO, D., KIENDLER-SCHARR, A., MENTEL, T., RUDICH, Y., HALLQUIST, M., DOUSSIN, J.-F., MAENHAUT, W., BÄCK, J., PETÄJÄ, T., WENGER, J., KULMALA, M. & KALBERER, M. (2016) 'Enhanced Volatile Organic Compounds emissions and organic aerosol mass increase the oligomer content of atmospheric aerosols', Scientific Reports, 6, 35038 (9pp). doi:10.1038/srep35038 en
dc.identifier.volume 6 en
dc.identifier.startpage 1 en
dc.identifier.endpage 9 en
dc.identifier.issn 2045-2322
dc.identifier.uri http://hdl.handle.net/10468/3206
dc.identifier.doi 10.1038/srep35038
dc.description.abstract Secondary organic aerosol (SOA) accounts for a dominant fraction of the submicron atmospheric particle mass, but knowledge of the formation, composition and climate effects of SOA is incomplete and limits our understanding of overall aerosol effects in the atmosphere. Organic oligomers were discovered as dominant components in SOA over a decade ago in laboratory experiments and have since been proposed to play a dominant role in many aerosol processes. However, it remains unclear whether oligomers are relevant under ambient atmospheric conditions because they are often not clearly observed in field samples. Here we resolve this long-standing discrepancy by showing that elevated SOA mass is one of the key drivers of oligomer formation in the ambient atmosphere and laboratory experiments. We show for the first time that a specific organic compound class in aerosols, oligomers, is strongly correlated with cloud condensation nuclei (CCN) activities of SOA particles. These findings might have important implications for future climate scenarios where increased temperatures cause higher biogenic volatile organic compound (VOC) emissions, which in turn lead to higher SOA mass formation and significant changes in SOA composition. Such processes would need to be considered in climate models for a realistic representation of future aerosol-climate-biosphere feedbacks. en
dc.description.sponsorship Suomen Akatemia (Grants 1118615 and 272041); U.S. Department of Energy, Office of Science (Biogenic Aerosols—Effects on Clouds and Climate (BAECC)); Natural Environment Research Council, United Kingdom (Studentship) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Nature Publishing Group en
dc.rights © 2016, the Authors. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line. en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject Secondary organic aerosol en
dc.subject Organic oligomers en
dc.subject SOA en
dc.subject Cloud condensation nuclei en
dc.subject CCN en
dc.subject Volatile organic compound en
dc.subject VOC en
dc.title Enhanced Volatile Organic Compounds emissions and organic aerosol mass increase the oligomer content of atmospheric aerosols en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Ivan Kourtchev, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: I.Kourtchev@ucc.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder Seventh Framework Programme en
dc.contributor.funder European Research Council en
dc.contributor.funder Suomen Akatemia en
dc.contributor.funder Office of Science en
dc.contributor.funder U.S. Department of Energy en
dc.contributor.funder Horizon 2020 en
dc.contributor.funder Natural Environment Research Council en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Scientific Reports en
dc.internal.IRISemailaddress I.Kourtchev@ucc.ie
dc.internal.IRISemailaddress i.kourtchev@ucc.ie en
dc.identifier.articleid 35038
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/254319/EU/Determination of Elemental Composition of Secondary Organic Aerosols using Ultrahigh Resolution Mass Spectrometry: A Combined Laboratory and Field Investigation/SOAULTRAMASS en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP2::ERC/279405/EU/Composition and Sources of Atmospheric Organic Aerosol and their Negative Health Effects/CORANE en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP2::ERC/227463/EU/Atmospheric nucleation: from molecular to global scale/ATMNUCLE en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP4::INFRA/228335/EU/Integration of European Simulation Chambers for Investigating Atmospheric Processes - Part 2/EUROCHAMP-2 en
dc.relation.project info:eu-repo/grantAgreement/EC/H2020/654109/EU/Aerosols, Clouds, and Trace gases Research InfraStructure/ACTRIS-2 en
dc.relation.project info:eu-repo/grantAgreement/EC/FP7::SP4::INFRA/262254/EU/Aerosols, Clouds, and Trace gases Research Infrastructure Network/ACTRIS en


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© 2016, the Authors. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line. Except where otherwise noted, this item's license is described as © 2016, the Authors. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line.
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