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Microplastics as vectors of heavy metals for fish
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Researchers investigated whether microplastics act as carriers — or 'vectors' — that transport heavy metals into fish, potentially increasing toxic metal exposure through the food chain. This thesis examines how plastic particles in marine environments may bind to metals like lead and cadmium and deliver them to fish tissues.
Tese de mestrado, Ecologia Marinha, Universidade de Lisboa, Faculdade de Ciências, 2017
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Microplastics as a vehicle of heavy metals in aquatic environments: A review of adsorption factors, mechanisms, and biological effects
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This review summarizes how microplastics in water can absorb and carry toxic heavy metals like lead and cadmium, making them more dangerous to aquatic life than either pollutant alone. Environmental factors such as water acidity, salinity, and organic matter influence how much metal sticks to microplastic surfaces. Since contaminated seafood is a major source of human exposure, understanding these interactions is important for assessing health risks.
Particulate plastics as a vector for toxic trace-element uptake by aquatic and terrestrial organisms and human health risk.
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This paper reviews evidence that microplastics and nanoplastics act as carriers for toxic trace elements like lead, mercury, and cadmium in both aquatic and terrestrial environments, concentrating these metals on their surfaces. The authors assess how adsorption of heavy metals onto plastic particles may increase human and wildlife exposure risks, and discuss how environmental conditions influence metal uptake by plastics.
Microplastics as vectors of metals contamination in Mediterranean Sea
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Researchers collected zooplankton from Mediterranean Sea sites and measured metal concentrations associated with ingested microplastics, finding elevated cadmium, lead, and nickel on MP surfaces compared to surrounding water, demonstrating that MP-bound metals become available to zooplankton and could biomagnify up the food chain.
[Research Progress on Trojan-horse Effect of Microplastics and Heavy Metals in Freshwater Environment].
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This review examines the Trojan-horse effect in freshwater environments where microplastics adsorb and transport heavy metals, significantly increasing their potential ecological harm due to the large surface area and persistence of microplastic particles.
Vector transport of microplastics bound potentially toxic elements (PTEs) in water systems
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This study examines the vector transport of microplastics carrying potentially toxic elements (PTEs) through water systems, investigating how microplastics serve as carriers that mobilise and redistribute heavy metals and other contaminants across aquatic environments.
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