气候变化领域集成服务门户(CCPortal): Atmospheric evolution of emissions from a boreal forest fire: The formation of highly functionalized oxygen-; nitrogen-; and sulfur-containing organic compounds

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DOI	10.5194/acp-21-255-2021
	Atmospheric evolution of emissions from a boreal forest fire: The formation of highly functionalized oxygen-; nitrogen-; and sulfur-containing organic compounds
	Ditto J.C.; He M.; Hass-Mitchell T.N.; Moussa S.G.; Hayden K.; Li S.-M.; Liggio J.; Leithead A.; Lee P.; Wheeler M.J.; Wentzell J.J.B.; Gentner D.R.
发表日期	2021
ISSN	1680-7316
起始页码	255
结束页码	267
卷号	21 期号:1
英文摘要	Forest fires are major contributors of reactive gas-and particle-phase organic compounds to the atmosphere. We used offline high-resolution tandem mass spectrometry to perform a molecular-level speciation of gas-and particle-phase compounds sampled via aircraft from an evolving boreal forest fire smoke plume in Saskatchewan, Canada. We observed diverse multifunctional compounds containing oxygen, nitrogen, and sulfur (CHONS), whose structures, formation, and impacts are understudied. The dilution-corrected absolute ion abundance of particle-phase CHONS compounds increased with plume age by a factor of 6.4 over the first 4 h of downwind transport, and their relative contribution to the observed functionalized organic aerosol (OA) mixture increased from 19 % to 40 %. The dilution-corrected absolute ion abundance of particle-phase compounds with sulfide functional groups increased by a factor of 13 with plume age, and their relative contribution to observed OA increased from 4 % to 40 %. Sulfides were present in up to 75 % of CHONS compounds and the increases in sulfides were accompanied by increases in ring-bound nitrogen; both increased together with CHONS prevalence. A complex mixture of intermediate-and semi-volatile gas-phase organic sulfur species was observed in emissions from the fire and depleted downwind, representing potential precursors to particle-phase CHONS compounds. These results demonstrate CHONS formation from nitrogen-and oxygen-containing biomass burning emissions in the presence of reduced sulfur species. In addition, they highlight chemical pathways that may also be relevant in situations with elevated emissions of nitrogen-and sulfur-containing organic compounds from residential biomass burning and fossil fuel use (e.g., coal), respectively. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
英文关键词	atmospheric chemistry; biomass burning; boreal forest; dilution; forest fire; nitrogen; organic compound; oxygen; sulfur; Canada; Saskatchewan
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168843
作者单位	Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06511, United States; Air Quality Research Division, Environment and Climate Change Canada, Toronto, ON M3H 5T4, Canada; Solutions for Energy Air, Climate and Health (SEARCH), School of the Environment, Yale University, New Haven, CT 06511, United States
推荐引用方式 GB/T 7714	Ditto J.C.,He M.,Hass-Mitchell T.N.,et al. Atmospheric evolution of emissions from a boreal forest fire: The formation of highly functionalized oxygen-; nitrogen-; and sulfur-containing organic compounds[J],2021,21(1).
APA	Ditto J.C..,He M..,Hass-Mitchell T.N..,Moussa S.G..,Hayden K..,...&Gentner D.R..(2021).Atmospheric evolution of emissions from a boreal forest fire: The formation of highly functionalized oxygen-; nitrogen-; and sulfur-containing organic compounds.Atmospheric Chemistry and Physics,21(1).
MLA	Ditto J.C.,et al."Atmospheric evolution of emissions from a boreal forest fire: The formation of highly functionalized oxygen-; nitrogen-; and sulfur-containing organic compounds".Atmospheric Chemistry and Physics 21.1(2021).