Sorption of perfluoroalkyl substances (PFASs) to an organic soil horizon – Effect of cation composition and pH
Review articleOpen access
Abstract:

Highlights•Sorption of PFASs of C5 or longer depends on the pH or on the SOM bulk net charge.•For C5–C8 PFCAs, SOM bulk net charge is strongly related to sorption.•For longer-chained PFASs, pH is a better predictor of sorption.•Cation effects are evident only for shorter-chained PFASs.•Longer-chained PFASs probably bind preferentially to the humin fraction of SOM.

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