The abstract is read at the publisher; the summary is JClub's.
PFAS levels in Tonglong River surface water drop from a median 2800 ng/L in the dry season to 790 ng/L in the wet season, while porewater stays far higher.
- Why it matters: Small catchment–lake connections are key PFAS pathways, but seasonal transport and partitioning across water, particles, sediment, and porewater are not well resolved.
- What they did: Nineteen PFASs were measured in water, suspended particulate matter, sediment, and porewater from the Tonglong River in eastern China during dry and wet seasons, with modeling of interphase partitioning.
- The result: Wet-season runoff is linked to dilution and redistribution that weakens longitudinal gradients in surface water, while porewater retains a stable upstream-enrichment pattern, supported by partitioning model fits (0.36–0.60).
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.