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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. xlgao@yic.ac.cn
Source PublicationECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN0147-6513
2014-07-01
Volume105Pages:72-79
KeywordRare Earth Elements Sediment Analysis Sediment Chemistry Chemical Fractionation Coastal Zone Intertidal Environment
DOI10.1016/j.ecoenv.2014.04.006
Contribution Rank[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
Department中科院海岸带环境过程与生态修复重点实验室
AbstractSurface 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.
SubtypeArticle
Indexed BySCI
Language英语
WOS KeywordSEQUENTIAL EXTRACTION PROCEDURE ; METAL POLLUTION STATUS ; SOUTH-WESTERN SPAIN ; SURFACE SEDIMENTS ; TRACE-METALS ; RIVER SEDIMENTS ; CERIUM ANOMALIES ; GEOCHEMISTRY ; SOILS ; OCEAN
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS IDWOS:000336947900011
Funding OrganizationEnvironmental Sciences & Ecology ; Toxicology
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/8733
Collection中科院海岸带环境过程与生态修复重点实验室
Corresponding AuthorGao, XL (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China. xlgao@yic.ac.cn
Affiliation1.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
Recommended Citation
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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