The Sediment-Water Partitioning Characteristics of Per- and Polyfluoroalkyl Substances (PFAS) in Urban Rivers Receiving Reclaimed Water.

Toxics · 2026 · PMC13030133 · PMID 41893459

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a decreasing trendno p-value reported

From a spatial perspective, PFAS concentrations in the urban runoff exhibited a decreasing trend from the wastewater treatment plant discharge point toward downstream sections as the distance from sewage sources increased.

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an increasing trendno p-value reported

The average sediment–water ratio (Log K d ) of PFAS at each site showed an increasing trend with chain length, and was generally higher than that observed in seawater, natural rivers, and lakes, indicating a specific sediment–water partitioning behavior of PFAS in urban rivers.

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