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

Journal of Environmental Sciences 2023年第5期127卷 483-494页

作者： Mengrong Yang Fengxia Li Cenyan Huang Lei Tong Xiaorong Dai Hang Xiao Center for Excellence in Regional Atmospheric Environment&Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control Ningbo(Beilun)Zhongke Haixi Industrial Technology Innovation CenterNingbo 315800China University of Chinese Academy of Sciences Beijing 100049China Department of Neuro-and Sensory Physiology University Medical Center GotingenHumboldtallee 2337073 GotingenGermany Center for Biostructural Imaging of Neurodegeneration University Medical Center Gotingenvon-Siebold-Straβ3α37075GotingenGermany College of Biological and Environmental Sciences Zhejiang Wanli UniversityNingbo 315100China

Volatile organic compounds(VOCs)are important precursors of secondary organic compounds and ozone,which raise major environmental *** 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,*** on seasonal variation in species concentration,the positive matrix factorization(pmf)receptor model was applied to apportion the sources of VOCs in each *** pmf results revealed that unknown acetonitrile source,paint solvent,electronics industry,biomass burning,secondary formation and biogenic emission were mainly attributed to VOC *** burning and secondary formation were the major sources of VOCs and contributed more than 70%of VOC emissions in spring and ***-related sources contributed 8.65%–31.2%of the VOCs throughout the *** unknown acetonitrile source occurred in winter and spring,and contributed 7.6%–43.73%of the VOC emissions in the two *** probability function(CPF)analysis illustrated that the industry sources came from local emission,while biomass burning and biogenic emission mainly came from the northwest *** potential source contribution function(PSCF)model showed that secondary formation-related source was mainly from Jiangsu Province,northeastern China and the surrounding *** 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

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