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Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary
Duan, Li-Qin1; Song, Jin-Ming1; Yuan, Hua-Mao1; Li, Xue-Gang1; Li, Ning1; Ma, Ji-Kun2; 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
Source PublicationENVIRONMENTAL EARTH SCIENCES
Volume72Issue:8Pages:3193-3204
SubtypeArticle
AbstractTo 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.
KeywordTrace Elements Sequential Extraction Principal Component Analysis Environmental Risks The Changjiang Estuary
Subject AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
DOI10.1007/s12665-014-3225-6
Indexed BySCI
Language英语
WOS IDWOS:000342494100036
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/24003
Collection海洋生态与环境科学重点实验室
Corresponding AuthorSong, JM (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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