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DOI	10.5194/acp-19-14901-2019
	A study of volatility by composition; heating; and dilution measurements of secondary organic aerosol from 1;3;5-trimethylbenzene
	Sato K.; Fujitani Y.; Inomata S.; Morino Y.; Tanabe K.; Hikida T.; Shimono A.; Takami A.; Fushimi A.; Kondo Y.; Imamura T.; Tanimoto H.; Sugata S.
发表日期	2019
ISSN	16807316
起始页码	14901
结束页码	14915
卷号	19 期号:23
英文摘要	Studies of the volatility distribution of secondary organic aerosol (SOA) from aromatic compounds are limited compared with SOA from biogenic monoterpenes. In this study, the volatility distribution was investigated by composition, heating, and dilution measurements for SOA formed from the photooxidation of 1,3,5-trimethylbenzene in the presence of NOx . Composition studies revealed that highly oxygenated monomers (C9H14Ox , x D4-7) and dimers (C18H26Ox , x D8-12) are the major products in SOA particles. Highly oxygenated molecules (HOMs) with five or more oxygens were formed during photochemical aging, whereas dimers degraded during photochemical aging. HOMs with five or more oxygens may be produced from the photooxidation of phenol-type gaseous products, whereas dimers in the particle phase may be photolyzed to smaller molecules during photochemical aging. The results of composition, heating, and dilution measurements showed that fresh SOA that formed from 1,3,5-trimethylbenzene (TMB) photooxidation includes low-volatility compounds with < 1 μgm-3 saturation concentrations, which are attributed to dimers. Similar results were reported for α-pinene SOA in previous studies. Low-volatility compounds with < 1 μgm-3 saturation concentrations are not included in the volatility distributions employed in the standard volatility basis-set (VBS) approach. Improvements in the organic aerosol model will be necessary for the study of anthropogenic SOA as well as biogenic SOA. © 2019 BMJ Publishing Group. All rights reserved.
语种	英语
scopus关键词	aerosol composition; biogenic emission; dilution; heating; organic matter; photochemistry; photolysis; photooxidation
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/143987
作者单位	National Institute for Environmental Studies (NIES), Ibaraki, 305-8506, Japan; Shoreline Science Research, Inc., Tokyo, 192-0045, Japan
推荐引用方式 GB/T 7714	Sato K.,Fujitani Y.,Inomata S.,et al. A study of volatility by composition; heating; and dilution measurements of secondary organic aerosol from 1;3;5-trimethylbenzene[J],2019,19(23).
APA	Sato K..,Fujitani Y..,Inomata S..,Morino Y..,Tanabe K..,...&Sugata S..(2019).A study of volatility by composition; heating; and dilution measurements of secondary organic aerosol from 1;3;5-trimethylbenzene.Atmospheric Chemistry and Physics,19(23).
MLA	Sato K.,et al."A study of volatility by composition; heating; and dilution measurements of secondary organic aerosol from 1;3;5-trimethylbenzene".Atmospheric Chemistry and Physics 19.23(2019).