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

IMR OpenIR

	The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China
其他题名	The levels, sources and reactivity of volatile organic compounds in a typical urban area of Northeast China
	Ma Zhuobiao 1; Liu Chengtang 1; Zhang Chenglong 1; Liu Pengfei 1; Ye Can 1; Xue Chaoyang 1; Zhao Di 4; Sun Jichen 4; Du Yiming 4; Chai Fahe 5; Mu Yujing 1
	2019
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES
ISSN	1001-0742
卷号	79 页码:121-134
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.
其他摘要	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.
关键词	PEARL RIVER-DELTA PHOTOCHEMICAL OZONE FORMATION NONMETHANE HYDROCARBONS NMHCS SOURCE APPORTIONMENT RATE CONSTANTS COMPOUNDS VOCS AIR-QUALITY PRECURSORS POLLUTION EMISSION Volatile organic compounds Source apportionment Photochemical ozone formation Field measurement
收录类别	CSCD
语种	英语
资助项目	[National Key Research and Development Program of China] ; [National Natural Science Foundation of China] ; [National research program for Key issues in air pollution control]
CSCD记录号	CSCD:6442310
引用统计	被引频次：11[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/149840
专题	中国科学院金属研究所
作者单位	1.中国科学院生态环境研究中心 2.中国科学院大学 3.中国科学院 4.中国科学院金属研究所 5.Chinese Res Institute Environm Sci, Beijing 100012, 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.