Comparison of surface freshwater PFAS sampling methods to evaluate potential for bias due to PFAS enrichment in the surface microlayer
Shaun A. Roark,
Alexander Wilson‐Fallon,
Amanda Struse
et al.
Abstract:Per‐ and polyfluoroalkyl substances (PFAS) accumulate at the air–water interface of the surface microlayer (SML) on marine and freshwater bodies. In order to determine if including the SML when sampling bulk surface water leads to a high bias in measured PFAS concentrations, a pilot study and a full field study were conducted. The pilot study conducted at two sites was aimed at determining the analytical precision and small‐scale (~1 m) spatial variability in concentrations of PFAS in bulk water and the SML. T… Show more
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