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DOI	10.1016/j.atmosenv.2020.118148
	Characterization of secondary products formed through oxidation of reduced sulfur compounds
	Van Rooy P.; Purvis-Roberts K.L.; Silva P.J.; Nee M.J.; Cocker D.
发表日期	2021
ISSN	1352-2310
卷号	256
英文摘要	Dimethylsulfide (DMS) and dimethyldisulfide (DMDS) are precursors to products, like sulfuric acid and methanesulfonic acid (MSA), which are important to secondary aerosol formation. The formation and yields of particulate MSA and sulfuric acid from the oxidation of reduced sulfur compounds is not well understood. In this study, a 37.5 cubic meter Teflon environmental chamber was utilized to study the oxidation mechanism and aerosol forming potential of DMS and DMDS under dry conditions. Experiments were conducted in both the presence and absence ofNOx, using hydroxyl radical, nitrate radical, as well O(P3) as an oxidant. With initial NOx concentrations of 100 part-per-billion, relatively low for laboratory oxidation experiments, O(P3) dominated oxidation of the reduced sulfur precursor and resulted in aerosol mass yields of greater than 40%. Hydroxyl radical oxidation of DMS and DMDS in the absence of NOx resulted in aerosol yields of 6% and 13%, respectively, while nitrate radical oxidation in the presence of NOx resulted in yields of 8% and less than 1%, respectively. Evidence of sulfuric acid formation was present during all particle-forming experiments, as was evidence of additional unknown sulfur-containing organic particulate. There was no evidence of MSA formation in the gas- or particle-phase throughout this study. The absence of MSA formation in the presence of NOx has not been reported in previous studies and indicates a lack of understanding of the MSA formation mechanism. The observations made during this chamber study diverge from observations made during previous studies conducted under high precursor and NOx concentrations, emphasizing the importance of atmospherically relevant initial conditions. © 2020 Elsevier Ltd
关键词	Environmental chamber Methanesulfonic acid Reduced sulfur Secondary aerosol Sulfuric acid
语种	英语
scopus关键词	Aerosols; Nitrates; Nitrogen oxides; Organic acids; Oxidation; Particles (particulate matter); Sulfur compounds; Aerosol formation; Dimethyl disulfides; Dimethyl sulphide; Methanesulphonic acid; Nitrate radicals; NO$-x$; Reduced sulphur; Reduced sulphur compounds; Secondary aerosols; Secondary product; Sulfuric acid; dimethyl disulfide; dimethyl sulfide; hydroxyl radical; nitrate; organosulfur derivative; sulfur derivative; sulfuric acid; aerosol composition; aerosol formation; chemical composition; chemical compound; concentration (composition); dimethylsulfide; experimental study; free radical; hydroxyl radical; nitric oxide; oxidation; sulfur compound; aerosol; Article; concentration (parameter); controlled study; oxidation; photodegradation; priority journal
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/248393
作者单位	Department of Chemical and Environmental Engineering, Bourns College of Engineering, University of California, Riverside, CA 92521, United States; Bourns College of Engineering, Center for Environmental Research and Technology (CE-CERT), Riverside, CA 92507, United States; Claremont McKenna, Pitzer, and Scripps Colleges, W.M. Keck Science Department, Claremont, CA 91711, United States; United States Department of Agriculture – Agricultural Research Service, Food Animal Environmental Systems Research Unit, Bowling Green, KY 42101, United States; Western Kentucky University, Department of Chemistry, 1906 College Heights Blvd., Bowling Green, KY 42101, United States
推荐引用方式 GB/T 7714	Van Rooy P.,Purvis-Roberts K.L.,Silva P.J.,et al. Characterization of secondary products formed through oxidation of reduced sulfur compounds[J],2021,256.
APA	Van Rooy P.,Purvis-Roberts K.L.,Silva P.J.,Nee M.J.,&Cocker D..(2021).Characterization of secondary products formed through oxidation of reduced sulfur compounds.ATMOSPHERIC ENVIRONMENT,256.
MLA	Van Rooy P.,et al."Characterization of secondary products formed through oxidation of reduced sulfur compounds".ATMOSPHERIC ENVIRONMENT 256(2021).