Perfluorooctane sulfonate (PFOS) adsorption on Fe-rich mineral assemblages and soils: experiments and surface complexation modeling.

ABSTRACT: Perfluorooctane sulfonate (PFOS) is an emerging contaminant frequently detected in subsurface environments, raising significant concern due to its environmental persistence, mobility, and potential human health impacts. This study examines PFOS adsorption onto a range of solid substrates, including pure minerals, mineral assemblages, and natural soils. Specifically, the adsorption behavior of 2-line ferrihydrite, ferrihydrite-coated sand, and soil collected from a PFOS-impacted site in Killingworth, Connecticut was investigated to evaluate their capacity to retain PFOS under varying geochemical conditions. By integrating batch adsorption experiments with surface complexation modeling (SCM) and applying the component additivity approach, this study elucidates the reactive transport mechanis

SUBMITTER: Farrell D 

PROVIDER: S-EPMC12639654 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature