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Role of sesquiterpenes in biogenic new particle formation

Dada, Lubna; Stolzenburg, Dominik; Simon, Mario; Fischer, Lukas; Heinritzi, Martin; Wang, Mingyi; Xiao, Mao; Vogel, Alexander L.; Ahonen, Lauri; Amorim, Antonio; Baalbaki, Rima; Baccarini, Andrea; Baltensperger, Urs; Bianchi, Federico; Daellenbach, Kaspar R.; DeVivo, Jenna; Dias, Antonio; Dommen, Josef; Duplissy, Jonathan; ... mehr

Abstract:

Biogenic vapors form new particles in the atmosphere, affecting global climate. The contributions of monoterpenes and isoprene to new particle formation (NPF) have been extensively studied. However, sesquiterpenes have received little attention despite a potentially important role due to their high molecular weight. Via chamber experiments performed under atmospheric conditions, we report biogenic NPF resulting from the oxidation of pure mixtures of β-caryophyllene, α-pinene, and isoprene, which produces oxygenated compounds over a wide range of volatilities. We find that a class of vapors termed ultralow-volatility organic compounds (ULVOCs) are highly efficient nucleators and quantitatively determine NPF efficiency. When compared with a mixture of isoprene and monoterpene alone, adding only 2% sesquiterpene increases the ULVOC yield and doubles the formation rate. Thus, sesquiterpene emissions need to be included in assessments of global aerosol concentrations in pristine climates where biogenic NPF is expected to be a major source of cloud condensation nuclei.


Verlagsausgabe §
DOI: 10.5445/IR/1000162431
Veröffentlicht am 22.09.2023
Originalveröffentlichung
DOI: 10.1126/sciadv.adi5297
Scopus
Zitationen: 13
Web of Science
Zitationen: 12
Dimensions
Zitationen: 17
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung Atmosphärische Aerosolforschung (IMKAAF)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 08.09.2023
Sprache Englisch
Identifikator ISSN: 2375-2548
KITopen-ID: 1000162431
HGF-Programm 12.11.12 (POF IV, LK 01) Atmospheric chemistry processes
Erschienen in Science Advances
Verlag American Association for the Advancement of Science (AAAS)
Band 9
Heft 36
Seiten Art.-Nr.: eadi5297
Nachgewiesen in Web of Science
Scopus
Dimensions
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