Spatial distributions, fractionation characteristics, and ecological risk assessment of trace elements in sediments of Chaohu Lake, a large eutrophic freshwater lake in eastern China

doi:10.1007/s11356-017-0462-8

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Spatial distributions, fractionation characteristics, and ecological risk assessment of trace elements in sediments of Chaohu Lake, a large eutrophic freshwater lake in eastern China
	Wu, Lei 1,2,3; Liu, Guijian 1,2; Zhou, Chuncai 1,2; Liu, Rongqiong 1,2; Xi, Shanshan 1,2; Da, Chunnian 4; Liu, Fei 5
	2018
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷号	25 期号:1 页码:588-600
文章类型	Article
摘要	The concentrations, spatial distribution, fractionation characteristics, and potential ecological risks of trace elements (Cu, Pb, Zn, Cr, Ni, and Co) in the surface sediment samples collected from 32 sites in Chaohu Lake were investigated. The improved BCR sequential extraction procedure was applied to analyze the chemical forms of trace elements in sediments. The enrichment factor (EF), sediment quality guidelines (SQGs), potential ecological risk index (PERI), and risk assessment code (RAC) were employed to evaluate the pollution levels and the potential ecological risks. The results found that the concentrations of Cu, Pb, Zn, Cr, Ni, and Co in the surface sediments were 78.59, 36.91, 161.84, 98.87, 38.92, and 10.09 mg kg(-1), respectively. The lower concentrations of Cu, Pb, Zn, Cr, and Ni were almost found in the middle part of the lake, while Co increased from the western toward the eastern parts of the lake. Cr, Ni, Co, and Zn predominantly existed in the residual fractions, with the average values of 76.35, 59.22, 45.60, and 44.30%, respectively. Cu and Pb were mainly combined with Fe/Mn oxides in reducible fraction, with the average values of 66.4 and 69.1%, respectively. The pollution levels were different among the selected elements. Cu had the highest potential ecological risk, while Cr had the lowest potential ecological risk.
关键词	Chaohu Lake Trace Elements Sediments Elements Fraction Ecological Risk Assessment
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1007/s11356-017-0462-8
关键词[WOS]	HEAVY-METAL POLLUTION ; SURFACE SEDIMENTS ; SOURCE IDENTIFICATION ; CONTAMINATION ; SPECIATION ; COMMUNITY ; TRENDS ; RIVERS ; GREECE ; INDEX
收录类别	SCI
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000419608400058
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/5181
专题	黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shanxi, Peoples R China 3.Anhui Acad Environm Sci Res, Dept Water Environm Res, Hefei 230022, Anhui, Peoples R China 4.Hefei Univ, Dept Biol & Environm Engn, Hefei 230022, Anhui, Peoples R China 5.Huaibei Normal Univ, Dept Environm Sci, Huaibei 235000, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Wu, Lei,Liu, Guijian,Zhou, Chuncai,et al. Spatial distributions, fractionation characteristics, and ecological risk assessment of trace elements in sediments of Chaohu Lake, a large eutrophic freshwater lake in eastern China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(1):588-600.
APA	Wu, Lei.,Liu, Guijian.,Zhou, Chuncai.,Liu, Rongqiong.,Xi, Shanshan.,...&Liu, Fei.(2018).Spatial distributions, fractionation characteristics, and ecological risk assessment of trace elements in sediments of Chaohu Lake, a large eutrophic freshwater lake in eastern China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(1),588-600.
MLA	Wu, Lei,et al."Spatial distributions, fractionation characteristics, and ecological risk assessment of trace elements in sediments of Chaohu Lake, a large eutrophic freshwater lake in eastern China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.1(2018):588-600.

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