标题：Fractionation analysis and risk assessment of potential toxic elements

in reservoir sediments in central China

作者：Kai Zhang, Ya Han, Kuangjia Li, Ziwei Guo, Qian Wang, Xiangchao Cui, Fengxia Yang·, Zhongshuai Zhang

来源出版物：Environmental Science and Pollution Research, 2022

DOI：10.1007/s11356-022-21464-8

出版年：2022

文献类型：Article

语种：English

摘要：The pollution of potential toxic elements (PTEs) in the environment is a persistent issue and draws public attention constantly. However, there is no study comprehensively assessing the PTE pollution of water supply reservoirs in central China. This study determined the total contents and fractions of seven PTEs in 10 water supply reservoirs of central China, and evaluated PTE pollution risks by adopting various models. The results indicated that PTE pollution in water supply reservoirs was lower comparing that in estuary or river sediments, and Mn (manganese) was the predominant PTE in central China reservoirs. Fractionation analysis revealed that for B1 fraction (exchangeable/acid-soluble fraction) of Mn, Zn (zinc) and B2 fraction (reducible fraction) of Pb (lead) was high, while the efective state portion of Cr (chromium) was small. The monomial potential ecological risk indices and Igeo values were low among most samples, indicating overall modest PTE pollution. However, the results of the individual contamination factor (ICF) suggested that Pb might lead to potential health risks to human beings.

关键词：PTEs, Risk assessment, Fractionation analysis, Reservoirs, Central China

影响因子：5.190

论文连接：https://link.springer.com/article/10.1007/s11356-022-21464-8