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Investigating a probable relationship between microplastics and potentially toxic elements in fish muscles from northeast of Persian Gulf
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Researchers measured microplastic and metal concentrations in the muscles of benthic and pelagic fish species from the northeastern Persian Gulf. They found that microplastic and mercury levels increased with fish size, and estimated that consuming moderate portions of fish weekly provides essential nutrients without significant health risk. The study suggests that while fish remain a beneficial food source, monitoring microplastic and metal co-contamination in seafood is important for consumer safety.
Although weekly consumption of fish is recommended, the presence of contaminants in seafood has raised many concerns regarding the benefits of fish intake. In the present study microplastics (MPs) and metals' concentration in muscles of both benthic and pelagic fish species from northeast of Persian Gulf were investigated and the risk/benefit of their consumption was assessed. The results demonstrated that MPs and Hg in all species and Se in benthic species increase with size, while relationship between other metals, and fish size is not consistent. Consumption of a meal ration of 300 and < 100 g/week for adults and children, respectively, is recommended since it would provide the required essential elements with no human health risk. On the other hand, the estimated intake of MPs from fish muscles revealed that the mean intake of MPs for P. indicus, E. coioides, A. djedaba, and S. jello consumption is 555, 240, 233, and 169 items/300 g-week, respectively. Moreover, the relationship between MPs and metals in fish muscles were positive for A. djedaba, and negative for E. coioides. Considering the chemical toxicity of MPs and metals, and their good linear relationships in some species, consumption of high doses of the studied fish may pose a health threat to the consumers.
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Occurrence, abundance and characteristics of microplastics in some commercial fish of northern coasts of the Persian Gulf
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Microplastics were found in muscle, liver, gill, and gastrointestinal tissues of 14 commercially fished species from the northern Persian Gulf, with gastrointestinal tissues showing the highest contamination and muscle tissue showing very low levels, suggesting limited translocation from gut to edible flesh in most species.
Investigating microplastics bioaccumulation and biomagnification in seafood from the Persian Gulf: a threat to human health?
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Researchers investigated microplastic bioaccumulation and biomagnification in five commercially important seafood species from the Persian Gulf, examining both muscle tissue and gills. They found microplastics present in all species, with evidence suggesting potential trophic transfer through the marine food web. The study estimates that regular consumption of these seafood species could represent a notable pathway for human microplastic exposure in the region.
Microplastics and trace metals in fish species of the Gulf of Mannar (Indian Ocean) and evaluation of human health
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Researchers examined microplastics and trace metals in five commercially important fish species from the Gulf of Mannar in the Indian Ocean. They found microplastics in both muscle and intestinal tissues, predominantly polyethylene and polypropylene particles, and estimated that human consumers could ingest 121 to 456 microplastic items per person per year from eating these fish.
Microplastics in different tissues of fish and prawn from the Musa Estuary, Persian Gulf
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Researchers analyzed multiple tissues of commercially important fish and prawns from the Persian Gulf and found microplastics present in guts, skin, muscle, gills, and liver across all species examined. The type and abundance of microplastics varied by species and sampling location, with bottom-dwelling fish accumulating the most particles. The findings are notable because they show microplastics penetrate beyond the digestive tract into edible muscle tissue, which is directly relevant to human consumption.
Microplastic occurrence in selected aquatic species of the Persian Gulf: No evidence of trophic transfer or effect of diet
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Researchers examined microplastic contamination in six fish species, one mollusk, and three crustacean species from the Persian Gulf, finding no evidence of trophic transfer of microplastics or dietary effects on contamination levels across species.
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