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DOI	10.1007/s11356-017-0680-0
	Heavy metals in the surface sediments of lakes on the Tibetan Plateau, China
	Guo, Bixi; Liu, Yongqin; Zhang, Fan; Hou, Juzhi; Zhang, Hongbo; Li, Chaoliu
通讯作者	Liu, YQ (通讯作者)
发表日期	2018
ISSN	0944-1344
EISSN	1614-7499
起始页码	3695
结束页码	3707
卷号	25 期号:4
英文摘要	Heavy metal contamination has affected many regions in the world, particularly the developing countries of Asia. We investigated 8 heavy metals (Cu, Zn, Cd, Pb, Cr, Co, Ni, and As) in the surface sediments of 18 lakes on the Tibetan Plateau. It was found that the distributions of the heavy metals showed no clear spatial pattern on the plateau. The results indicated that the mean concentrations of these metals in the sediment samples diminished as follows: Cr > As > Zn > Ni > Pb > Cu > Co > Cd. The results of geoaccumulation index (I-geo) and potential ecological risk factor (E-r(i) ) assessments showed that the sediments were moderately polluted by Cd and As, which posed much higher risks than the other metals. The values of the potential ecological risk index (RI) showed that lake Bieruoze Co has been severely polluted by heavy metals. Principal component analysis, hierarchical cluster analysis, and Pearson correlation analysis results indicated that the 8 heavy metals in the lake surface sediments of the Tibetan Plateau could be classified into four groups. Group 1 included Cu, Zn, Pb, Co, and Ni which were mainly derived from both natural and traffic sources. Group 2 included Cd which mainly originated from anthropogenic sources like alloying, electroplating, and dyeing industries and was transported to the Tibetan Plateau by atmospheric circulation. Group 3 included Cr and it might mainly generate from parent rocks of watersheds. The last Group (As) was mainly from manufacturing, living, and the striking deterioration of atmospheric environment of the West, Central Asia, and South Asia.
关键词	ECOLOGICAL RISK-ASSESSMENT NAM CO MULTIVARIATE-ANALYSIS SPATIAL-DISTRIBUTION POLLUTION STATUS RIVER SEDIMENTS TRACE-ELEMENTS RAINBOW-TROUT YANGTZE-RIVER LOWER REACHES
英文关键词	Sediments; Heavy metal; Ecological risk; Contamination indices; Source
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000425008900065
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259132
推荐引用方式 GB/T 7714	Guo, Bixi,Liu, Yongqin,Zhang, Fan,et al. Heavy metals in the surface sediments of lakes on the Tibetan Plateau, China[J]. 中国科学院青藏高原研究所,2018,25(4).
APA	Guo, Bixi,Liu, Yongqin,Zhang, Fan,Hou, Juzhi,Zhang, Hongbo,&Li, Chaoliu.(2018).Heavy metals in the surface sediments of lakes on the Tibetan Plateau, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(4).
MLA	Guo, Bixi,et al."Heavy metals in the surface sediments of lakes on the Tibetan Plateau, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.4(2018).