气候变化领域集成服务门户(CCPortal): Elucidating the importance of semi-volatile organic compounds to secondary organic aerosol formation at a regional site during the EXPLORE-YRD campaign

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DOI	10.1016/j.atmosenv.2020.118043
	Elucidating the importance of semi-volatile organic compounds to secondary organic aerosol formation at a regional site during the EXPLORE-YRD campaign
	Yu Y.; Wang H.; Wang T.; Song K.; Tan T.; Wan Z.; Gao Y.; Dong H.; Chen S.; Zeng L.; Hu M.; Wang H.; Lou S.; Zhu W.; Guo S.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	To investigate the regional secondary organic aerosol (SOA) formation at Yangtze River Delta (YRD) region, China, the chemical composition of fine particles and their gaseous precursors were simultaneously measured at a regional site, Taizhou, during EXPeriment on the eLucidation of the atmospheric Oxidation capacity, aerosol foRmation and their Effects in Yangtze River Delta (EXPLORE-YRD) intensive field campaign from May to June 2018. Secondary organic carbon (SOC) was estimated by both bottom-up and top-down method, i.e. the yield method from volatile organic compounds (VOCs) oxidation, and the elemental carbon (EC) tracer method. Our result showed that the oxidation of alkanes and aromatics measured by GC-MS/FID based on the yield method could only explain 25.3% of the SOC derived from the EC tracer method, in which aromatics were the dominant contributors (23.9%). This percentage increased to 39.5% while two semi-volatile organic compounds (SVOCs), i.e. naphthalene, and methylnaphthalene, were used in the calculation, suggesting the importance of SVOCs on SOA formation. The SOA formation pathways were further explored. The good correlation of SOC and odd oxygen (Ox) indicated the important role of photochemical reactions on SOA formation in the summer of YRD. Our findings evaluated the contributions of VOCs to SOA formation in Taizhou, revealed the importance of SVOCs to SOA formation and highlighted an urgent need for more exploration of SVOCs in the future. © 2020 The Authors
关键词	EC tracer Method Secondary organic aerosol Semi-volatile organic compounds Yield method
语种	英语
scopus关键词	Aerosols; Gas chromatography; Naphthalene; Oxidation; Photochemical reactions; Tracers; Volatile organic compounds; Atmospheric oxidation capacity; Bottom-up and top-down; Chemical compositions; Oxidation of alkanes; Secondary organic aerosols; Secondary organic carbons (SOC); Semi-volatile organic compounds (SVOCs); Semivolatile organic compounds; Organic carbon; acetone; acetonitrile; acetylene; alkane; alkene; alkene derivative; ammonia; benzene; chloride; ethylbenzene; halogenated hydrocarbon; naphthalene; nitrate; organic carbon; oxygen; sulfate; toluene; volatile organic compound; aerosol formation; chemical composition; elemental carbon; oxidation; tracer; volatile organic compound; aerosol; boundary layer; chemical composition; circadian rhythm; diffusion; humidity; mass fragmentography; oxidation; precursor; priority journal; river; secondary organic aerosol; temperature; time of flight mass spectrometry; water content; wind; wind speed; China; Taizhou; Yangtze River; Zhejiang
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/248726
作者单位	State Key Joint Laboratory of Environmental Simulation and Pollution Control, International Joint Laboratory for Regional Pollution Control, Ministry of Education (IJRC), College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing, China; State Environmental Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, 200233, China
推荐引用方式 GB/T 7714	Yu Y.,Wang H.,Wang T.,et al. Elucidating the importance of semi-volatile organic compounds to secondary organic aerosol formation at a regional site during the EXPLORE-YRD campaign[J],2021,246.
APA	Yu Y..,Wang H..,Wang T..,Song K..,Tan T..,...&Guo S..(2021).Elucidating the importance of semi-volatile organic compounds to secondary organic aerosol formation at a regional site during the EXPLORE-YRD campaign.ATMOSPHERIC ENVIRONMENT,246.
MLA	Yu Y.,et al."Elucidating the importance of semi-volatile organic compounds to secondary organic aerosol formation at a regional site during the EXPLORE-YRD campaign".ATMOSPHERIC ENVIRONMENT 246(2021).