Optical properties of secondary organic aerosols derived from long-chain alkanes under various NOx and seed conditions

CORC > 化学研究所 > 中国科学院化学研究所 > 分子动态与稳态结构实验室

	Optical properties of secondary organic aerosols derived from long-chain alkanes under various NOx and seed conditions
	Li, Junling 1,2; Li, Kun 1,2; Wang, Weigang 1,2; Wang, Jing 1,2; Peng, Chao 1,2; Ge, Maofa 1,2,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017-02-01
卷号	579 页码:1699-1705
关键词	Ris Ivocs Soa
英文摘要	Long-chain alkanes are a type of important intermediate-volatile organic compounds (IVOCs) in the atmosphere, which contribute to a large proportion of secondary organic aerosol (SOA). However, the optical properties of SOA derived from long-chain alkanes remain poorly understood. Here, we investigate the refractive index (RI) of SOA derived from photo-oxidation of dodecane (C12), pentadecane (C15) and heptadecane (C17) under low-NOx and high-NOx conditions with the absence or presence of inorganic aerosol seeds. The RIs of these SOAs are found to be in the range of 1.33 to 1.57 at the wavelength of 532 nm. The results from mass spectroscopy indicate that both reaction mechanisms influenced by NOx level and gas-particle partitioning influenced by seeds have important impact on the chemical compositions of SOAs, which further influence the optical properties like RI. Finally, by comparing the RI values to other literature and model results, we suggest that various RIs of SOAs derived from long-chain alkanes should be applied in atmospheric and climate models. (C) 2016 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/37934]
专题	化学研究所_分子动态与稳态结构实验室
作者单位	1.Chinese Acad Sci, BNLMS, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China
推荐引用方式 GB/T 7714	Li, Junling,Li, Kun,Wang, Weigang,et al. Optical properties of secondary organic aerosols derived from long-chain alkanes under various NOx and seed conditions[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,579:1699-1705.
APA	Li, Junling,Li, Kun,Wang, Weigang,Wang, Jing,Peng, Chao,&Ge, Maofa.(2017).Optical properties of secondary organic aerosols derived from long-chain alkanes under various NOx and seed conditions.SCIENCE OF THE TOTAL ENVIRONMENT,579,1699-1705.
MLA	Li, Junling,et al."Optical properties of secondary organic aerosols derived from long-chain alkanes under various NOx and seed conditions".SCIENCE OF THE TOTAL ENVIRONMENT 579(2017):1699-1705.