Distribution, chemical speciation and source of trace elements in surface sediments of the Changjiang Estuary
文献类型：期刊论文
| 作者 | Duan, Li-Qin1; Song, Jin-Ming1 ; Yuan, Hua-Mao1; Li, Xue-Gang1; Li, Ning1; Ma, Ji-Kun2
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| 刊名 | ENVIRONMENTAL EARTH SCIENCES
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| 出版日期 | 2014-10-01 |
| 卷号 | 72期号:8页码:3193-3204 |
| 关键词 | Trace elements Sequential extraction Principal component analysis Environmental risks The Changjiang Estuary |
| 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. |
| 英文摘要 | 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. |
| 学科主题 | Environmental Sciences & Ecology; Geology; Water Resources |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000342494100036 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/24003]  |
| 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. 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,&Ma, Ji-Kun.(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. |
入库方式： OAI收割
来源：海洋研究所
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