Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/104177
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dc.contributor.authorHe, Ling-Yanen
dc.contributor.authorChen, Qien
dc.contributor.authorHeald, Colette L.en
dc.contributor.authorJimenez, Jose L.en
dc.contributor.authorCanagaratna, Manjula R.en
dc.contributor.authorZhang, Qien
dc.contributor.authorHuang, Xiao-Fengen
dc.contributor.authorCampuzano-Jost, Pedroen
dc.contributor.authorPalm, Brett B.en
dc.contributor.authorPoulain, Laurenten
dc.contributor.authorKuwata, Mikinorien
dc.contributor.authorMartin, Scot T.en
dc.contributor.authorAbbatt, Jonathan P. D.en
dc.contributor.authorLee, Alex K.Y.en
dc.contributor.authorLiggio, Johnen
dc.date.accessioned2015-06-18T07:20:05Zen
dc.date.accessioned2019-12-06T21:27:51Z-
dc.date.available2015-06-18T07:20:05Zen
dc.date.available2019-12-06T21:27:51Z-
dc.date.copyright2015en
dc.date.issued2015en
dc.identifier.citationChen, Q., Heald, C. L., Jimenez, J. L., Canagaratna, M. R., Zhang, Q., He, L.-Y., et al. (2015). Elemental composition of organic aerosol: the gap between ambient and laboratory measurements. Geophysical research letters, 42(10), 4182-4189.en
dc.identifier.issn0094-8276en
dc.identifier.urihttps://hdl.handle.net/10356/104177-
dc.description.abstractA large data set including surface, aircraft, and laboratory observations of the atomic oxygen-to-carbon (O:C) and hydrogen-to-carbon (H:C) ratios of organic aerosol (OA) is synthesized and corrected using a recently reported method. The whole data set indicates a wide range of OA oxidation and a trajectory in the Van Krevelen diagram, characterized by a slope of −0.6, with variation across campaigns. We show that laboratory OA including both source and aged types explains some of the key differences in OA observed across different environments. However, the laboratory data typically fall below the mean line defined by ambient observations, and little laboratory data extend to the highest O:C ratios commonly observed in remote conditions. OA having both high O:C and high H:C are required to bridge the gaps. Aqueous-phase oxidation may produce such OA, but experiments under realistic ambient conditions are needed to constrain the relative importance of this pathway.en
dc.language.isoenen
dc.relation.ispartofseriesGeophysical research lettersen
dc.rights© 2015 American Geophysical Union. This paper was published in Geophysical Research Letters and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at the following official DOI: [http://dx.doi.org/10.1002/2015GL063693]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Scienceen
dc.titleElemental composition of organic aerosol: the gap between ambient and laboratory measurementsen
dc.typeJournal Articleen
dc.contributor.researchEarth Observatory of Singaporeen
dc.identifier.doi10.1002/2015GL063693en
dc.description.versionPublished versionen
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