Environmental status of Daya Bay surface sediments inferred from a sequential extraction technique
Gao, Xuelu2,3; Chen, Chen-Tung Arthur4; Wang, Gang2; Xue, Qinzhao2; Tang, Cheng2; Chen, Shaoyong1
Source PublicationESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
2010-02-10
Volume86Issue:3Pages:369-378
KeywordTrace Metals Chemical Speciation Sediment Analysis Environmental Assessment Daya Bay China
Contribution Rank[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
Corresponding AuthorChen, SY, Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
Department污染过程与控制实验室 
AbstractThe 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.; 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.
SubtypeArticle
Indexed BySCI ; ISTP ; ISTP
Language英语
WOS KeywordPEARL RIVER ESTUARY ; HEAVY-METALS ; TRACE-METALS ; CONTAMINATED SOILS ; MARINE-SEDIMENTS ; LAKE-SEDIMENTS ; SOUTH CHINA ; SPECIATION ; FRACTIONATION ; ELEMENTS
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000275001700010
Citation statistics
Cited Times:114[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/3787
Collection中科院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
Affiliation1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
3.Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
4.Natl Sun Yat Sen Univ, Inst Marine Geol & Chem, Kaohsiung 804, Taiwan
Recommended Citation
GB/T 7714
Gao, Xuelu,Chen, Chen-Tung Arthur,Wang, Gang,et al. Environmental status of Daya Bay surface sediments inferred from a sequential extraction technique[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2010,86(3):369-378.
APA Gao, Xuelu,Chen, Chen-Tung Arthur,Wang, Gang,Xue, Qinzhao,Tang, Cheng,&Chen, Shaoyong.(2010).Environmental status of Daya Bay surface sediments inferred from a sequential extraction technique.ESTUARINE COASTAL AND SHELF SCIENCE,86(3),369-378.
MLA Gao, Xuelu,et al."Environmental status of Daya Bay surface sediments inferred from a sequential extraction technique".ESTUARINE COASTAL AND SHELF SCIENCE 86.3(2010):369-378.
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