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Natural and anthropogenic sources of potentially toxic elements to aquatic environment: a systematic literature review

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Abstract

Potentially toxic elements (PTEs) constitute a class of metals, semimetals, and non-metals that are of concern due to their persistence, toxicity, bioaccumulation, and biomagnification in high concentrations, posing risks to the ecosystem and to human health. A systematic literature review (SLR) was used in this study to identify natural and anthropogenic sources of PTEs for the aquatic environment. The databases consulted were ScienceDirect, Scopus, and Web of Science, in the period 2000–2020, using specific terms and filters. After analyzing the titles, abstracts, and full texts, 79 articles were selected for the SLR, in which 15 sources and 16 PTEs were identified. The main anthropogenic sources identified were mining, agriculture, industries, and domestic effluents, and the main natural sources identified were weathering of rocks and geogenic origin. Some places where environmental remediation studies can be carried out were highlighted such as Guangdong province, in China, presenting values of Cd, Cr, and Cu exceeding the national legislation from drinking water and soil quality, and Ardabil Province, in Iran, presenting values of As, Cr, Cu, Ni, Zn, and Pb exceeding the standard for freshwater sediments of USEPA, among others places. With the results exposed in this work, the government and the competent bodies of each locality will be able to develop strategies and public policies aimed at the main sources and places of contamination, in order to prevent and remedy the pollution of aquatic environments by potentially toxic elements.

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Funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001.

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All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Mayara de Almeida Ribeiro Carvalho. The first draft of the manuscript was written by Mayara de Almeida Carvalho, Wander Gustavo Botero, and Luciana Camargo de Oliveira, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Luciana Camargo de Oliveira.

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The authors declare no competing interests.

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Responsible Editor: Luke Mosley

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de Almeida Ribeiro Carvalho, M., Botero, W.G. & de Oliveira, L.C. Natural and anthropogenic sources of potentially toxic elements to aquatic environment: a systematic literature review. Environ Sci Pollut Res 29, 51318–51338 (2022). https://doi.org/10.1007/s11356-022-20980-x

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  • DOI: https://doi.org/10.1007/s11356-022-20980-x

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