气候变化领域集成服务门户(CCPortal): The characteristics and source analysis of VOCs emissions at roadside: Assess the impact of ethanol-gasoline implementation

CCPortal

DOI	10.1016/j.atmosenv.2021.118670
	The characteristics and source analysis of VOCs emissions at roadside: Assess the impact of ethanol-gasoline implementation
	Zhang Q.; Sun L.; Wei N.; Wu L.; Mao H.
发表日期	2021
ISSN	1352-2310
卷号	263
英文摘要	To research the effect of ethanol-gasoline on the VOCs emission from vehicles, two long-term roadside experiments were carried out to obtain the characteristics of VOCs emissions from vehicles at TEDA road in Tianjin. The Positive Matrix Factorization (PMF) source analysis model is used to analyze the VOCs at roadside and assess the impact of ethanol-gasoline implementation. The results show that the average VOCs concentration in the roadside environment was 45.67 ± 34.60 μg/m3 in the 2019 experiment. Alkanes, alkenes, halogenated hydrocarbons, alkynes, aromatic hydrocarbons and oxygen volatile organic compounds (OVOCs) accounted for 63.18%, 13.24%, 9.04%, 6.03%, 5.35% and 3.16%, respectively. Compared with the experiment in 2018, the concentration of m/p-xylene and benzene in the roadside environment showed a significant decrease. Five VOCs sources were identified, including gasoline vehicle exhaust emissions (27.46%), diesel vehicle exhaust emissions (23.70%), evaporative emission (22.67%), LPG/CNG vehicle emission (13.86%) and solvent usage (12.30%). The PMF analysis results of 2018 and 2019 showed that the contribution of gasoline vehicle exhaust emissions decreased by 8%, but the contribution rate of evaporative emissions increased by 6%. The implementation of ethanol-gasoline can reduce VOCs emissions from vehicle exhaust, however, the evaporative emissions of VOCs will increase. Evaporative emission from vehicles should be strictly controlled in the future. © 2021 Elsevier Ltd
关键词	Emission characteristics Ethanol-gasoline PMF Source analysis Volatile organic compounds
语种	英语
scopus关键词	Aromatic hydrocarbons; Ethanol; Ethanol fuels; Factorization; Liquefied petroleum gas; Roadsides; Volatile organic compounds; Emission characteristics; Ethanol-gasoline; Evaporative emission; Gasoline vehicle; Positive Matrix Factorization; Roadside environments; Source analysis; Vehicle-exhaust emission; VOC emissions; Volatile organics; Gasoline; concentration (composition); emission; environmental impact assessment; ethanol; implementation process; pollutant source; roadside environment; traffic emission; volatile organic compound; China; Tianjin
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/248257
作者单位	Tianjin Key Laboratory of Urban Transport Emission Research, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
推荐引用方式 GB/T 7714	Zhang Q.,Sun L.,Wei N.,et al. The characteristics and source analysis of VOCs emissions at roadside: Assess the impact of ethanol-gasoline implementation[J],2021,263.
APA	Zhang Q.,Sun L.,Wei N.,Wu L.,&Mao H..(2021).The characteristics and source analysis of VOCs emissions at roadside: Assess the impact of ethanol-gasoline implementation.ATMOSPHERIC ENVIRONMENT,263.
MLA	Zhang Q.,et al."The characteristics and source analysis of VOCs emissions at roadside: Assess the impact of ethanol-gasoline implementation".ATMOSPHERIC ENVIRONMENT 263(2021).