Isomer-Specific Trophic Transfer of Perfluorocarboxylic Acids in the   Marine Food Web of Liaodong Bay, North China

doi:10.1021/es504445x

CORC > 北京大学 > 城市与环境学院

	Isomer-Specific Trophic Transfer of Perfluorocarboxylic Acids in the Marine Food Web of Liaodong Bay, North China
	Zhang, Zhong ; Peng, Hui ; Wan, Yi ; Hu, Jianying
刊名	environmental science technology
	2015
关键词	POLYBROMINATED DIPHENYL ETHERS BEARS URSUS-MARITIMUS SPRAGUE-DAWLEY RATS PERFLUOROALKYL CONTAMINANTS PERFLUOROOCTANE SULFONATE PERFLUORINATED COMPOUNDS FLUOROTELOMER ALCOHOLS TISSUE DISTRIBUTION TURSIOPS-TRUNCATUS MASS-SPECTROMETRY
DOI	10.1021/es504445x
英文摘要	Trophic transfers of perfluorocarboxylic acids (PFCAs) have been well studied in aquatic food webs; however, most studies examined PFCAs as single compounds without differentiating isomers. In this study, an in-port derivatization GC-MS method was used to determine PFCA (perfluorooctanoic acid, PFOA; perfluorononanoic acid, PFNA; perfluorodecanoate acid, PFDA; perfluoroundecanoate acid, PFUnDA; perfluorododecanoate acid, PFDoDA; perfluorotridecanoate acid, PFTriDA, and perfluorotetradecanoate acid, PFTeDA) structural isomers in 11 marine species including benthic invertebrates, fishes, and gulls collected in November 2006 from Liaodong Bay in China. The total concentrations of linear PFCAs were 0.35-1.10, 0.93-2.61, and 2.13-2.69 ng/g ww, and the corresponding percentages of branched PFCAs to linear PFCAs were 6.6-15.5%, 4.2-9.9%, and 4.5-6.0% in invertebrates, fishes, and birds, respectively. Except for linear PFOA, significant positive relationships were found between the concentrations of all the target linear PFCAs and trophic levels, and the trophic magnification factors (TMFs) ranged from 1.90 to 4.88. Positive correlations between the concentrations of branched PFCAs isomers and trophic levels were also observed but were without statistical significance. The relatively high biomagnification of linear isomers of PFCAs would lead to low percentages of branched PFCAs to total PFCAs in organisms at high trophic levels. This study for the first time clarified isomer-specific trophic transfers of PFCAs in a marine food web.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000349060300027&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Environmental; Environmental Sciences; SCI(E); EI; PubMed; 2; ARTICLE; hujy@urban.pku.edu.cn; 3; 1453-1461; 49
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160525]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Zhang, Zhong,Peng, Hui,Wan, Yi,et al. Isomer-Specific Trophic Transfer of Perfluorocarboxylic Acids in the Marine Food Web of Liaodong Bay, North China[J]. environmental science technology,2015.
APA	Zhang, Zhong,Peng, Hui,Wan, Yi,&Hu, Jianying.(2015).Isomer-Specific Trophic Transfer of Perfluorocarboxylic Acids in the Marine Food Web of Liaodong Bay, North China.environmental science technology.
MLA	Zhang, Zhong,et al."Isomer-Specific Trophic Transfer of Perfluorocarboxylic Acids in the Marine Food Web of Liaodong Bay, North China".environmental science technology (2015).