P08-09 Are all plastics equal? Effects of conventional and biobased microplastics chronic dietary exposure on Sparus auratabrain health and behaviour

Routes of human exposure to Micro- and Nanoplastics through the food chain: what do literature reviews say?

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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.

Cellular and Animal Toxicities of Micro- and Nanoplastics

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Researchers reviewed evidence from cell and animal studies on the toxic effects of micro- and nanoplastics, finding that these particles can cause inflammation, oxidative stress, and organ damage in laboratory models, raising concern about what chronic low-level human exposure might mean for long-term health.

Inclusive Assessment of Micro/Nanoplastics Biological Effects Across Primary Producers, Consumers, and Humans

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This comprehensive review synthesized microplastic and nanoplastic biological effects across the full spectrum of life—from microbes and plants to aquatic animals and humans—documenting conserved stress responses like oxidative damage, cell membrane disruption, and cascading impacts on ecosystem nutrient cycling. It highlights that smaller nanoplastics are particularly hazardous, bioaccumulate through food chains, and are increasingly linked to human inflammatory disorders and potential carcinogenic risks.

Toxicity and Possibility of Microplastic Exposure While Living

Human Exposure to Dietary Microplastics and Health Risk: A Comprehensive Review

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This comprehensive review examines human dietary exposure to microplastics through bottled water, seafood, packaged foods, and crops grown in plastic-mulched soils, cataloging toxicity mechanisms including immune disruption, gastrointestinal damage, and developmental cytotoxicity, with MPs shown to transfer via placenta and breast milk. The multi-pathway exposure evidence reviewed here highlights that microplastic ingestion is a universal human experience beginning before birth, with plausible health consequences that demand urgent investment in mechanistic in vivo research.