Emissions of Glyoxal and Other Carbonyl Compounds from Agricultural Biomass Burning Plumes Sampled by Aircraft

dc.contributor.authorZarzana, Kyle J.
dc.contributor.authorMin, Kyung-Eun
dc.contributor.authorWashenfelder, Rebecca A.
dc.contributor.authorKaiser, Jennifer
dc.contributor.authorKrawiec-Thayer, Mitchell
dc.contributor.authorPeischl, Jeff
dc.contributor.authorNeuman, J. Andrew
dc.contributor.authorNowak, John B.
dc.contributor.authorWagner, Nicholas L.
dc.contributor.authorDube, William P.
dc.contributor.authorSt. Clair, Jason
dc.contributor.authorWolfe, Glenn
dc.contributor.authorHanisco, Thomas F.
dc.contributor.authorKeutsch, Frank N.
dc.contributor.authorRyerson, Thomas B.
dc.contributor.authorBrown, Steven S.
dc.date.accessioned2020-06-16T17:20:17Z
dc.date.available2020-06-16T17:20:17Z
dc.description.abstractWe report enhancements of glyoxal and methylglyoxal relative to carbon monoxide and formaldehyde in agricultural biomass burning plumes intercepted by the NOAA WP-3D aircraft during the 2013 Southeast Nexus and 2015 Shale Oil and Natural Gas Nexus campaigns. Glyoxal and methylglyoxal were measured using broadband cavity enhanced spectroscopy, which for glyoxal provides a highly selective and sensitive measurement. While enhancement ratios of other species such as methane and formaldehyde were consistent with previous measurements, glyoxal enhancements relative to carbon monoxide averaged 0.0016 ± 0.0009, a factor of 4 lower than values used in global models. Glyoxal enhancements relative to formaldehyde were 30 times lower than previously reported, averaging 0.038 ± 0.02. Several glyoxal loss processes such as photolysis, reactions with hydroxyl radicals, and aerosol uptake were found to be insufficient to explain the lower measured values of glyoxal relative to other biomass burning trace gases, indicating that glyoxal emissions from agricultural biomass burning may be significantly overestimated. Methylglyoxal enhancements were three to six times higher than reported in other recent studies, but spectral interferences from other substituted dicarbyonyls introduce an estimated correction factor of 2 and at least a 25% uncertainty, such that accurate measurements of the enhancements are difficult.en_US
dc.description.sponsorshipThe authors thank all those who participated in the SENEX and SONGNEX campaigns, particularly the pilots and support crews from the NOAA Aircraft Operations Center. We thank J. S. Holloway for the CO and SO2 data, C. A. Brock for the aerosol number concentration data, and J. P. Schwarz and M. Z. Markovic for the black carbon data. K.-E. Min acknowledges a postdoctoral fellowship from the Cooperative Institute for Research in Environmental Sciences at the University of Colorado. J. Kaiser acknowledges support from NASA Headquarters under the NASA Earth and Space Science Fellowship Program grant NNX14AK97H. The HCHO measurements were supported by US EPA Science to Achieve Results (STAR) program grant 83540601 and NASA-GeoCAPE award number NNX15AH83G.en_US
dc.description.urihttps://pubs.acs.org/doi/abs/10.1021/acs.est.7b03517en_US
dc.format.extent10 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2plu7-rutb
dc.identifier.citationKyle J. Zarzana, Kyung-Eun Min, Rebecca A. Washenfelder, Jennifer Kaiser, Mitchell Krawiec-Thayer, Jeff Peischl, J. Andrew Neuman, John B. Nowak, Nicholas L. Wagner, William P. Dubè, Jason M. St. Clair, Glenn M. Wolfe, Thomas F. Hanisco, Frank N. Keutsch, Thomas B. Ryerson, and Steven S. Brown, Emissions of Glyoxal and Other Carbonyl Compounds from Agricultural Biomass Burning Plumes Sampled by Aircraft, Environmental Science & Technology 2017 51 (20), 11761-11770 DOI: 10.1021/acs.est.7b03517en_US
dc.identifier.urihttps://doi.org/10.1021/acs.est.7b03517
dc.identifier.urihttp://hdl.handle.net/11603/18903
dc.language.isoen_USen_US
dc.publisherACS Publicationsen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsPublic Domain Mark 1.0*
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleEmissions of Glyoxal and Other Carbonyl Compounds from Agricultural Biomass Burning Plumes Sampled by Aircraften_US
dc.typeTexten_US

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