Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary

doi:10.1007/s12665-014-3225-6

	Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary
	Duan, Li-Qin 1; Song, Jin-Ming1 ; Yuan, Hua-Mao 1; Li, Xue-Gang 1; Li, Ning 1; Ma, Ji-Kun 2; Song, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
	2014-10-01
发表期刊	ENVIRONMENTAL EARTH SCIENCES
卷号	72 期号:8 页码:3193-3204
文章类型	Article
摘要	To evaluate biogeochemical characteristics, eco-environmental risks and sources of trace elements (TEs: As, Hg, Se, Sb, Te, Sn, Bi and Ge), their total concentrations and chemical speciation in surface sediments collected from the Changjiang Estuary were determined. Total concentrations for As, Hg, Se, Sb, Te, Sn, Bi and Ge were 4.57-30.20, 0.01-0.40, 0.04-0.38, 0.36-1.48, 0.02-0.10, 0.48-6.58, 0.13-0.64 and 0.83-2.43 mu g/g, respectively, with higher values at the estuary. This distribution pattern was attributed to the riverine input and high clay and total organic carbon contents. The sequential extraction suggested that TEs mainly occurred in residual fractions. The risk assessment code suggested that As, Hg and Sn were at low risk, whereas Bi, Se, Sb, Te and Ge were at medium risk. The geoaccumulation index (I (geo)) and principal component analysis indicated that Se and Sn mainly came from the natural input (crustal and biological inputs), whereas As, Sb, Hg, Bi and Te came from both of the crustal and anthropogenic inputs via atmosphere and rivers. In addition, Ge possibly came from the natural (crustal and biological inputs) and anthropogenic inputs.
关键词	Trace Elements Sequential Extraction Principal Component Analysis Environmental Risks The Changjiang Estuary
学科领域	Environmental Sciences & Ecology ; Geology ; Water Resources
DOI	10.1007/s12665-014-3225-6
收录类别	SCI
语种	英语
WOS记录号	WOS:000342494100036
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/24003
专题	海洋生态与环境科学重点实验室
通讯作者	Song, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
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
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Duan, Li-Qin,Song, Jin-Ming,Yuan, Hua-Mao,et al. Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary[J]. ENVIRONMENTAL EARTH SCIENCES,2014,72(8):3193-3204.
APA	Duan, Li-Qin.,Song, Jin-Ming.,Yuan, Hua-Mao.,Li, Xue-Gang.,Li, Ning.,...&Song, JM .(2014).Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary.ENVIRONMENTAL EARTH SCIENCES,72(8),3193-3204.
MLA	Duan, Li-Qin,et al."Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary".ENVIRONMENTAL EARTH SCIENCES 72.8(2014):3193-3204.

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