Spatial distributions of methoxylated and hydroxylated polybrominated diphenyl ethers in the East China Sea A seaward increasing trend

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Spatial distributions of methoxylated and hydroxylated polybrominated diphenyl ethers in the East China Sea A seaward increasing trend
	Fan, Ying ; Lan, Jing ; Li, Huijuan ; Li, Guoliang ; Cao, Yali ; Zhao, Zongshan ; Zhao, Meixun ; Jiang, Guibin
刊名	CHEMOSPHERE
	2014
卷号	114 期号:1 页码:247-254
关键词	MeO-BDEs OH-BDEs Spatial distribution Sediment East China Sea
ISSN号	0045-6535
中文摘要	Methoxylated (MeO-) and hydroxylated (OH-) polybrominated diphenyl ethers (PBDEs) in marine environments have been of increasing concern due to their potential ecological toxicities and worldwide occurrence. However, few reports have been referred to their occurrence and distributions in marine sediments despite large numbers of studies on marine organisms have been reported. In the present paper, nine MeO-BDEs, ten OH-BDEs and three phytoplankton biomarkers (PBs) of brassicasterol, dinosterol and alkenones have been measured in surface sediments from the East China Sea. 6-MeO-BDE47, 2'-MeO-BDE68 and 6-OH-BDE47 were predominant congeners, ranging from 5.2 to 599.5 pg g(-1), dw, 5.2 to 562.4 pg g(-1) dw, and 11.4 to 129.1 pg g(-1) dw, respectively. Their spatial patterns all presented a seaward increasing trend and higher levels of these compounds were mainly concentrated in the outer shelf influenced by the Kuroshio Current. The patterns further prove that these ortho-substituted MeO-BDEs and OH-BDEs in marine sediments are natural compounds. Furthermore, alkenones also presented a seaward increasing trend. Statistical analysis shows that there are significant correlations between MeO-BDEs, OH-BDEs and alkenones, impling the potential of coccolithophorids for producing these natural compounds and their global distribution, especially in open oceans. Comparison between TOC and the ratio of 6-MeO-BDE47/6-OH-BDE47 suggests that TOC should be a potential controlling factor of the conversion between MeO-BDE and OH-BDE pairs. (C) 2014 Elsevier Ltd. All rights reserved.
WOS记录号	WOS:000340990800033
公开日期	2015-03-24
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/9459]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Fan, Ying,Lan, Jing,Li, Huijuan,et al. Spatial distributions of methoxylated and hydroxylated polybrominated diphenyl ethers in the East China Sea A seaward increasing trend[J]. CHEMOSPHERE,2014,114(1):247-254.
APA	Fan, Ying.,Lan, Jing.,Li, Huijuan.,Li, Guoliang.,Cao, Yali.,...&Jiang, Guibin.(2014).Spatial distributions of methoxylated and hydroxylated polybrominated diphenyl ethers in the East China Sea A seaward increasing trend.CHEMOSPHERE,114(1),247-254.
MLA	Fan, Ying,et al."Spatial distributions of methoxylated and hydroxylated polybrominated diphenyl ethers in the East China Sea A seaward increasing trend".CHEMOSPHERE 114.1(2014):247-254.