Selenium and tellurium fractionation, enrichment, sources and chronological reconstruction in the East China Sea

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	Selenium and tellurium fractionation, enrichment, sources and chronological reconstruction in the East China Sea
	Duan, Li-Qin 1; Song, Jin-Ming1 ; Yuan, Hua-Mao 1; Li, Xue-Gang 1; Li, Ning 1; Ma, Jikun 2
刊名	ESTUARINE COASTAL AND SHELF SCIENCE
	2014-04-20
卷号	143 页码:48-57
关键词	selenium tellurium chemical speciation enrichment sediments the East China
通讯作者	Song, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China.
英文摘要	Surface and core sediments of the East China Sea (ECS) were collected to study spatio-temporal distributions and chemical fractions of Se and Te and to evaluate their enrichment and sources. Higher Se and Te concentrations in surface sediments appeared in the inner shelf and near the Cheju Island. It seemed to be controlled by sources and sediment characteristics. Enrichment factors (EFs) showed that Se and Te were at minor and moderate enrichment, respectively. Sequential extraction suggested that non-residual fractions of Se and Te accounted for high percentages (29.5 +/- 16.2% and 50.9 +/- 13.2%) in total, combined with risk assessment code (RCA), indicating that Se and Te were at medium and high risks, respectively. All temporal profiles of abundances, EFs and burial fluxes (BFs) of Se and Te displayed higher values before 1900, in 1989 and 2009, and in the period of 1960-1980 with a peak in 1970. These higher values were closely associated with biological and anthropogenic activities. (C) 2014 Elsevier Ltd. All rights reserved.
学科主题	Marine & Freshwater Biology; Oceanography
收录类别	SCI
语种	英语
WOS记录号	WOS:000336824800006
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/24044]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Duan, Li-Qin,Song, Jin-Ming,Yuan, Hua-Mao,et al. Selenium and tellurium fractionation, enrichment, sources and chronological reconstruction in the East China Sea[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2014,143:48-57.
APA	Duan, Li-Qin,Song, Jin-Ming,Yuan, Hua-Mao,Li, Xue-Gang,Li, Ning,&Ma, Jikun.(2014).Selenium and tellurium fractionation, enrichment, sources and chronological reconstruction in the East China Sea.ESTUARINE COASTAL AND SHELF SCIENCE,143,48-57.
MLA	Duan, Li-Qin,et al."Selenium and tellurium fractionation, enrichment, sources and chronological reconstruction in the East China Sea".ESTUARINE COASTAL AND SHELF SCIENCE 143(2014):48-57.