Rare earth elements in intertidal sediments of Bohai Bay, China: Concentration, fractionation and the influence of sediment texture

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	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 Arthur 2
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	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
ISSN号	0147-6513
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. xlgao@yic.ac.cn
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
中文摘要	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.
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.
学科主题	Environmental Sciences; Toxicology
研究领域[WOS]	Environmental Sciences & Ecology ; Toxicology
关键词[WOS]	SEQUENTIAL EXTRACTION PROCEDURE ; METAL POLLUTION STATUS ; SOUTH-WESTERN SPAIN ; SURFACE SEDIMENTS ; TRACE-METALS ; RIVER SEDIMENTS ; CERIUM ANOMALIES ; GEOCHEMISTRY ; SOILS ; OCEAN
收录类别	SCI
语种	英语
WOS记录号	WOS:000336947900011
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8733]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室烟台海岸带研究所_近岸生态与环境实验室
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. 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.(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.