Spatial distribution, contamination and ecological risk assessment of heavy metals in surface sediments of Erhai Lake, a large eutrophic plateau lake in southwest China
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- 作者：Qi Lina ; b ; Enfeng Liua ; efliu@niglas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Enlou Zhanga ; Kai Lia ; b ; Ji Shena
- 关键词：Heavy metal ; Contamination and eco-risk ; Principal component analysis ; Enrichment factor ; Sediment quality guidelines ; Potential ecological risk index
- 刊名：Catena
- 出版年：2016
- 出版时间：October 2016
- 年：2016
- 卷：145
- 期：Complete
- 页码：193-203
- 全文大小：1642 K
文摘
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PCA, EF and Pb isotopes are used in metal contamination and/or source identification.
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Metal eco-risks are revealed by combining the risk index (RI and Er), SQGs and EF indices.
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EFs provide valuable supplementary data to nonindigenous SQGs in eco-risk assessment.
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As, Cd and Hg are the most concerning metals regarding contamination and eco-risk levels.
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Anthropogenic metals were from atmospheric, industrial, and agricultural sources.