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A long-term field experiment reveals the accumulation of high amounts of microplastics in soils amended with composted waste residues.

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A long-term field experiment found that soils amended with composted waste residues accumulated high amounts of microplastics over time. The composted materials introduced plastic particles into agricultural soils even after processing, raising concerns about contaminating farmland through organic waste recycling. This study highlights composting as an overlooked pathway for microplastic introduction to soil.

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