Missing in total OH reactivity of VOCs from gasoline evaporation

doi:10.1016/j.cclet.2015.05.047

CORC > 北京大学 > 环境科学与工程学院

	Missing in total OH reactivity of VOCs from gasoline evaporation
	Wu, Ying ; Yang, Yu-Dong ; Shao, Min ; Lu, Si-Hua
刊名	CHINESE CHEMICAL LETTERS
	2015
关键词	Volatile organic compounds (VOCs) Comparative reactivity method (CRM) Missing OH reactivity Gasoline evaporation VOLATILE ORGANIC-COMPOUNDS CHINA ATMOSPHERE PROFILES FUEL
DOI	10.1016/j.cclet.2015.05.047
英文摘要	Gasoline evaporation is an important anthropogenic source of atmospheric volatile organic compounds (VOCs). Total OH reactivity for gasoline vapor was measured from 4 kinds of gasoline for the first time by comparative reactivity method (CRM) using proton transfer reaction mass spectrometer (PTR-MS). Compositions of 56 PAMS (photochemical assessment monitoring station) nonmethane hydrocarbons (NMHCs) were measured for both liquid and headspace of gasoline. We found high abundance of alkenes and aromatics in gasoline. The calculated OH reactivity derived from quantified NMHCs speciation accounted for only 57 4% of total reactivity obtained from CRM method. N-Alkenes, only 6 wt% in liquid gasoline, contributed to 70% of calculated reactivity. We assume that the undetected branched alkenes are the possible reason for the missing reactivity. We suggest that the priority of gasoline quality improvement is to reduce alkenes content in gasoline in term of reactivity-based control. (C) 2015 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.; National Natural Science Foundation [41125018, 41330635]; SCI(E); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); ARTICLE; mshao@pku.edu.cn; 10; 1246-1248; 26
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/439421]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Wu, Ying,Yang, Yu-Dong,Shao, Min,et al. Missing in total OH reactivity of VOCs from gasoline evaporation[J]. CHINESE CHEMICAL LETTERS,2015.
APA	Wu, Ying,Yang, Yu-Dong,Shao, Min,&Lu, Si-Hua.(2015).Missing in total OH reactivity of VOCs from gasoline evaporation.CHINESE CHEMICAL LETTERS.
MLA	Wu, Ying,et al."Missing in total OH reactivity of VOCs from gasoline evaporation".CHINESE CHEMICAL LETTERS (2015).