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学科主题: Marine & Freshwater Biology; Oceanography
题名: Environmental status of Daya Bay surface sediments inferred from a sequential extraction technique
作者: Gao, XL ; Chen, CTA ; Wang, G ; Xue, QZ ; Tang, C ; Chen, SY
通讯作者: sychen@gig.ac.cn
关键词: trace metals ; chemical speciation ; sediment analysis ; environmental assessment ; Daya Bay ; China
刊名: ESTUARINE COASTAL AND SHELF SCIENCE
发表日期: 2010
卷: 86, 期:3, 页:369-378
收录类别: sci
部门归属: [Chen, Shaoyong] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China; [Gao, Xuelu; Wang, Gang; Xue, Qinzhao; Tang, Cheng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Gao, Xuelu] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Chen, Chen-Tung Arthur] Natl Sun Yat Sen Univ, Inst Marine Geol & Chem, Kaohsiung 804, Taiwan
项目归属: 海洋地质
摘要: The chemical partitioning of 12 trace metals (Ba, Cd, Co, Cu, Mn, Mo, Ni, Pb, Sc, Sr, U, Zn) in 9 surface sediments from Daya Bay, northern South China Sea, was studied by a four-step sequential extraction technique to assess their environmental/pollution status. The studied metals take on different fraction composition patterns, and some of them show significant spatial variation especially for Cd. A majority of the studied metals can be considered immobile because of their high percentages in the residual fraction. It seems that the Daya Bay surface sediments have not yet been polluted by the studied heavy metals which are used as parameters to classify marine sediment quality, i.e., Cd, Cu, Ni, Pb and Zn. For all metals except for Pb, the extent of anthropogenic influences on their total concentrations in the Daya Bay surface sediments is generally imperceptible. The metals' potential risks to the environment were assessed, and the results showed that they have generally no risk or low risk except for Cd, Mn and Sr. (C) 2009 Elsevier Ltd. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000275001700010
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4342
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
Gao, XL; Chen, CTA; Wang, G; Xue, QZ; Tang, C; Chen, SY.Environmental status of Daya Bay surface sediments inferred from a sequential extraction technique,ESTUARINE COASTAL AND SHELF SCIENCE,2010,86(3):369-378
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