气候变化领域集成服务门户(CCPortal): Relative contributions of selected multigeneration products to chamber SOA formed from photooxidation of a range (C10–C17) of n-alkanes under high NOx conditions

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DOI	10.1016/j.atmosenv.2020.117976
	Relative contributions of selected multigeneration products to chamber SOA formed from photooxidation of a range (C10–C17) of n-alkanes under high NOx conditions
	Docherty K.S.; Yaga R.; Preston W.T.; Jaoui M.; Reidel T.P.; Offenberg J.H.; Kleindienst T.E.; Lewandowski M.
发表日期	2021
ISSN	1352-2310
卷号	244
英文摘要	A series of chamber experiments was conducted to investigate the composition of secondary organic aerosol (SOA) following oxidation of a range of parent n-alkanes (C10–C17) in the presence of NOx. The relative contribution of selected species representing first, second, and higher generation products to SOA mass was measured using a high-resolution aerosol mass spectrometer. Gas chromatography was also used for a limited set of amenable species. Relative contributions varied substantially across the range of investigated alkanes reflecting slight changes in SOA composition. The contribution of first-generation cyclic hemiacetal is minimal toward the small end of the investigated range and gradually increases with n-alkane size. The relative contributions of second generation and higher nitrate-containing species, in contrast, decrease with an increased alkane size. A similar trend is observed for relative contribution of organonitrates to SOA. Finally, SOA yield and composition are sensitive to water vapor concentrations. This sensitivity is limited to a narrow range (dry to ~15% RH) with little, if any, impact above 15% suggesting that this impact may be negligible under ambient conditions. The impact of water vapor also appears to decrease with increasing alkane carbon number. © 2020 Elsevier Ltd
关键词	AMS n-alkane Relative humidity Secondary organic aerosol Smog chamber
语种	英语
scopus关键词	Aerosols; Gas chromatography; Hydrocarbons; Nitrogen oxides; Photooxidation; Water vapor; Aerosol mass spectrometers; Ambient conditions; Chamber experiments; Multi generations; Nitrate-containing species; Relative contribution; Secondary organic aerosols; Water vapor concentration; Paraffins; alkane; organic nitrate; tetrahydrofuran derivative; trimethylsilyl derivative; aerosol; aerosol formation; alkane; concentration (composition); nitrogen oxides; organic compound; oxidation; photodegradation; water vapor; aerosol; Article; atmospheric particulate matter; chemical reaction; chemical structure; gas chromatography; humidity; mass fragmentography; online analysis; photooxidation; priority journal; secondary organic aerosol; water vapor
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248790
作者单位	Jacobs Technology, Inc., Research Triangle ParkNC, United States; CSS, Inc., Research Triangle ParkNC, United States; United States Environmental Protection Agency, Office of Research and Development, Research Triangle ParkNC, United States
推荐引用方式 GB/T 7714	Docherty K.S.,Yaga R.,Preston W.T.,等. Relative contributions of selected multigeneration products to chamber SOA formed from photooxidation of a range (C10–C17) of n-alkanes under high NOx conditions[J],2021,244.
APA	Docherty K.S..,Yaga R..,Preston W.T..,Jaoui M..,Reidel T.P..,...&Lewandowski M..(2021).Relative contributions of selected multigeneration products to chamber SOA formed from photooxidation of a range (C10–C17) of n-alkanes under high NOx conditions.ATMOSPHERIC ENVIRONMENT,244.
MLA	Docherty K.S.,et al."Relative contributions of selected multigeneration products to chamber SOA formed from photooxidation of a range (C10–C17) of n-alkanes under high NOx conditions".ATMOSPHERIC ENVIRONMENT 244(2021).