The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 大气环境科学实验室

	The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China
	Ma, Zhuobiao ; Liu, Chengtang ; Zhang, Chenglong ; Liu, Pengfei ; Ye, Can ; Xue, Chaoyang ; Zhao, Di ; Sun, Jichen ; Du, Yiming ; Chai, Fahe
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2019-05
卷号	79 页码:121-134
关键词	Volatile organic compounds Source apportionment Photochemical ozone formation Field measurement
ISSN号	1001-0742
英文摘要	Air concentrations of volatile organic compounds (VOCs) were continually measured at a monitoring site in Shenyang from 20 August to 16 September 2017. The average concentrations of alkanes, alkenes, aromatics and carbonyls were 28.54, 6.30, 5.59 and 9.78 ppbv, respectively. Seven sources were identified by the Positive Matrix Factorization model based on the measurement data of VOCs and CO. Vehicle exhaust contributed the most (36.15%) to the total propene-equivalent concentration of the measured VOCs, followed by combustion emission (16.92%), vegetation emission and secondary formation (14.33%), solvent usage (10.59%), petrochemical industry emission (9.89%), petrol evaporation (6.28%), and liquefied petroleum gas (LPG) usage (5.84%). Vehicle exhaust, solvent usage and combustion emission were found to be the top three VOC sources for O-3 formation potential, accounting for 34.52%, 16.55% and 11.94%, respectively. The diurnal variation of the total VOCs from each source could be well explained by their emission characteristics, e.g., the two peaks of VOC concentrations from LPG usage were in line with the cooking times for breakfast and lunch. Wind rose plots of the VOCs from each source could reveal the possible distribution of the sources around the monitoring site. The O-3 pollution episodes during the measurement period were found to be coincident with the elevation of VOCs, which was mainly due to the air parcel from the southeast direction where petrochemical industry emission was found to be dominant, suggesting that the petrochemical industry emission from the southeast was probably a significant cause of O-3 pollution in Shenyang. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43143]
专题	生态环境研究中心_大气环境科学实验室
作者单位	1.Shenyang Acad Environm Sci, Shenyang 110167, Liaoning, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 3.Chinese Acad Sci, Inst Urban Environm, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Peoples R China 4.Shenyang Environm Monitoring Ctr, Shenyang 110000, Liaoning, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Zhuobiao,Liu, Chengtang,Zhang, Chenglong,et al. The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,79:121-134.
APA	Ma, Zhuobiao.,Liu, Chengtang.,Zhang, Chenglong.,Liu, Pengfei.,Ye, Can.,...&Mu, Yujing.(2019).The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China.JOURNAL OF ENVIRONMENTAL SCIENCES,79,121-134.
MLA	Ma, Zhuobiao,et al."The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China".JOURNAL OF ENVIRONMENTAL SCIENCES 79(2019):121-134.