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Occurrence and fate of microplastics in Parisian combined sewer network

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This study investigated the occurrence and fate of microplastics in the combined sewer network of Paris, tracking particles from urban inputs through the wastewater system. Significant amounts of microplastics were found throughout the system, with storm events increasing concentrations. Combined sewer overflow events can release untreated microplastic-laden water directly into rivers during heavy rain.

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