VOC characteristics and their source apportionment in a coastal industrial area in the Yangtze River Delta, China  

作　　者：Mengrong Yang Fengxia Li Cenyan Huang Lei Tong Xiaorong Dai Hang Xiao 

机构地区：[1]Center for Excellence in Regional Atmospheric Environment&Key Laboratory of Urban Environment and Health,Institute of Urban Environment,Chinese Academy of Sciences,Xiamen 361021,China [2]Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control,Ningbo(Beilun)Zhongke Haixi Industrial Technology Innovation Center,Ningbo 315800,China [3]University of Chinese Academy of Sciences,Beijing 100049,China [4]Department of Neuro-and Sensory Physiology,University Medical Center Gotingen,Humboldtallee 23,37073 Gotingen,Germany [5]Center for Biostructural Imaging of Neurodegeneration,University Medical Center Gotingen,von-Siebold-Straβ3α,37075,Gotingen,Germany [6]College of Biological and Environmental Sciences,Zhejiang Wanli University,Ningbo 315100,China

出　　处：《Journal of Environmental Sciences》2023年第5期483-494,共12页环境科学学报（英文版）

基　　金：supported by the National Nature Science Foundation for Young Scientists of China(Nos.41605094,41905115).

摘　　要：Volatile organic compounds(VOCs)are important precursors of secondary organic compounds and ozone,which raise major environmental concerns.To investigate the VOC emission characteristics,measurements of VOCs based on proton transfer reaction-mass spectrometry during 2017 were conducted in a coastal industrial area in Ningbo,Zhejiang Province,China.Based on seasonal variation in species concentration,the positive matrix factorization(PMF)receptor model was applied to apportion the sources of VOCs in each season.The PMF results revealed that unknown acetonitrile source,paint solvent,electronics industry,biomass burning,secondary formation and biogenic emission were mainly attributed to VOC pollution.Biomass burning and secondary formation were the major sources of VOCs and contributed more than 70%of VOC emissions in spring and autumn.Industry-related sources contributed 8.65%–31.2%of the VOCs throughout the year.The unknown acetonitrile source occurred in winter and spring,and contributed 7.6%–43.73%of the VOC emissions in the two seasons.Conditional probability function(CPF)analysis illustrated that the industry sources came from local emission,while biomass burning and biogenic emission mainly came from the northwest direction.The potential source contribution function(PSCF)model showed that secondary formation-related source was mainly from Jiangsu Province,northeastern China and the surrounding ocean.The potential source areas of unknown acetonitrile source were northern Zhejiang Province,southern Jiangsu Province and the northeastern coastal marine environments.

关 键 词：Volatile organic compounds Proton transfer reaction-mass SPECTROMETRY PMF source apportionment Seasonal characteristics 

分 类 号：X701[环境科学与工程—环境工程]