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| Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture | |
Zhang, Yong1 ; Gao, Xuelu1,2; Chen, Chen-Tung Arthur2; Gao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. [email protected]
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| 发表期刊 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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| ISSN | 0147-6513 |
| 2014-07-01 | |
| 卷号 | 105页码:72-79 |
| 关键词 | Rare Earth Elements Sediment Analysis Sediment Chemistry Chemical Fractionation Coastal Zone Intertidal Environment |
| DOI | 10.1016/j.ecoenv.2014.04.006 |
| 产权排序 | [Zhang, Yong; Gao, Xuelu] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China; [Gao, Xuelu; Chen, Chen-Tung Arthur] Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 80424, Taiwan |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | Surface sediments from intertidal Bohai Bay were assessed using a four-step sequential extraction procedure to determine their concentrations of rare earth elements (REEs) and the chemical forms in which those elements were present The normalized ratios La/Gd and La/Yb showed that LREE contents were not significantly higher than the middle REEs or HREE contents. A negative Ce anomaly and positive Eu were observed in sand and silty sand sediments, whereas no significant Ce or Eu anomaly was found in clayey silt sediments. Residual fraction of REEs accounted for the majority of their total concentrations. Middle REEs were more easily leached than other REEs, especially in clayey silt sediment REEs contents in the surface sediment from the intertidal Bohai Sea were consistent with data from the upper continental crust and China shallow sea sediments, indicating that they were generally unaffected by heavily anthropogenic effects from adjacent areas. (C) 2014 Elsevier Inc. All rights reserved.; Surface sediments from intertidal Bohai Bay were assessed using a four-step sequential extraction procedure to determine their concentrations of rare earth elements (REEs) and the chemical forms in which those elements were present The normalized ratios La/Gd and La/Yb showed that LREE contents were not significantly higher than the middle REEs or HREE contents. A negative Ce anomaly and positive Eu were observed in sand and silty sand sediments, whereas no significant Ce or Eu anomaly was found in clayey silt sediments. Residual fraction of REEs accounted for the majority of their total concentrations. Middle REEs were more easily leached than other REEs, especially in clayey silt sediment REEs contents in the surface sediment from the intertidal Bohai Sea were consistent with data from the upper continental crust and China shallow sea sediments, indicating that they were generally unaffected by heavily anthropogenic effects from adjacent areas. (C) 2014 Elsevier Inc. All rights reserved. |
| 文章类型 | Article |
| 资助机构 | Environmental Sciences & Ecology ; Toxicology |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | SEQUENTIAL EXTRACTION PROCEDURE ; METAL POLLUTION STATUS ; SOUTH-WESTERN SPAIN ; SURFACE SEDIMENTS ; TRACE-METALS ; RIVER SEDIMENTS ; CERIUM ANOMALIES ; GEOCHEMISTRY ; SOILS ; OCEAN |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Toxicology |
| WOS记录号 | WOS:000336947900011 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8733 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 |
| 通讯作者 | Gao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. [email protected] |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China 2.Natl Sun Yat Sen Univ, Dept Oceanog, Kaohsiung 80424, Taiwan |
| 推荐引用方式 GB/T 7714 | Zhang, Yong,Gao, Xuelu,Chen, Chen-Tung Arthur,et al. Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2014,105:72-79. |
| APA | Zhang, Yong,Gao, Xuelu,Chen, Chen-Tung Arthur,&Gao, XL .(2014).Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,105,72-79. |
| MLA | Zhang, Yong,et al."Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 105(2014):72-79. |
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