Review on the relationship between microplastics and heavy metals in freshwater near mining areas.

Autor: Khant NA; Department of Geology, Kangwon National University, Chuncheon, 24341, Republic of Korea., Chia RW; Department of Geology, Kangwon National University, Chuncheon, 24341, Republic of Korea.; Research Institute for Earth Resources, Kangwon National University, Chuncheon, 24341, Republic of Korea., Moon J; Department of Geology, Kangwon National University, Chuncheon, 24341, Republic of Korea., Lee JY; Department of Geology, Kangwon National University, Chuncheon, 24341, Republic of Korea.; Research On Microplastic in Groundwater (RMPG), Kangwon National University, Chuncheon, 24341, Republic of Korea., Kim H; Department of Geology, Kangwon National University, Chuncheon, 24341, Republic of Korea. hydroqueen@kangwon.ac.kr.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Dec 06. Date of Electronic Publication: 2024 Dec 06.
DOI: 10.1007/s11356-024-35675-8
Abstrakt: Microplastics (MPs), degraded from plastic wastes, have drawn significant attention worldwide due to its prevalence and rapid transition. Contamination of freshwater with MPs has become an emerging global issue. Heavy metals (HMs), a prominent global pollutant, also garnered much attention due to their potential interaction with MPs, presenting a multifaceted environmental threat. The primary source of HM contamination in freshwater has been identified as mining sites. Additionally, the increasing use of plastic materials within mining areas raises concerns about MP release into the surrounding freshwater environments. Recent studies only provide information on the contamination of HMs status with MPs. However, studies on the mechanism responsible for MPs contamination from both external and internal sources of freshwater MPs and HMs are limited. The knowledge gaps in the deposition and fate of MPs in various mining situations and the possibility of combined impacts of heavy metals and MPs in the ecosystem raise ecological concerns. Here, we review the origins of MPs and HM pollution within mining sites and explore the potential combined detrimental impacts on plants and animal life. We found out that polystyrene (PS) and polyethylene (PE) have higher adsorption affinity to heavy metals, and the mingle toxic consequence of the MPs and HM can depend on the MP surface properties, pH, and salinity of the neighboring water solution. The Langmuir and Freundlich isotherm models enable the efficient design of adsorption systems. The Langmuir model describes single-layer adsorption at homogeneous sites, while the Freundlich model addresses multilayer adsorption on heterogeneous surfaces. The crucial mechanism of adsorption and desorption that underlies the occurrence of both MPs and heavy metals is a decisive matter in this issue.
Competing Interests: Declarations. Ethical approval: Not applicable. Consent to participate: Not applicable. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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