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Microplastics in food chains: Global evidence, bioaccumulation, spatial distribution and health risks
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Food chain microplastics contamination and impact on human health: a review
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This review synthesizes evidence on microplastic transfer through the food chain—spanning seafood, food additives, packaging, and agricultural products—and documents human health impacts including cancer, organ damage, and reproductive impairment. Microplastics are nearly impossible to excrete once absorbed into the circulatory system, making dietary exposure a critical and underappreciated public health concern.
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Researchers conducted an umbrella review of 59 published reviews on microplastics in food chains and found that plastic particles contaminate marine, freshwater, and terrestrial food sources across a vast size range (0.02–16,400 µm), noting that the number of reviews now exceeds primary studies, signaling a need for more standardized research.
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