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Microplastics occurrence, contamination, and effects on human health—a critical review
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This critical review examined the occurrence of microplastics in the food chain and their potential effects on human health. The authors found that microplastics enter the body through food packaging and bioaccumulation in animals and plants, and may contribute to oxidative stress and immune system disruption. The review emphasizes the need for greater understanding of microplastic toxicity mechanisms in humans.
Due to the huge benefits and convenient usage of plastics in our lives, the global production and discharge of plastics have increased rapidly nowadays. Plastic characteristics are lightness, flexibility, water resistance, high strength, and ease of manufacture, then they are highly resistant to degradation and sustain in the environment for a prolonged period. Microplastic (MP) is available in the food chain via bioaccumulation in both animals and plants and from plastic food packaging. MP contamination is endangering animal life because living organisms can accumulate MPs in cells and tissues and thus also be a danger to the human food chain and public health. Therefore, we need to understand the knowledge about MPs in the food chain, and their effect on human health, including problems including oxidative stress , immune disease , and risk of cancer. Then we try to explore the mechanism of toxicity in the human body of MPs.
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