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Spatial and temporal variability of per- and polyfluoroalkyl substances (PFAS) in environmental media of a small pond: Toward an improved understanding of PFAS bioaccumulation in fish by Abbi S. Brown; Xiaoyan Yun; Erica R. McKenzie; Christopher G. Heron; Jennifer A. Field; Christopher J. Salice is a Environmental Science article available to read on EtoBox.

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Per- and polyfluoroalkyl substances (PFAS) are highly fluorinated compounds with many industrial applications, for instance as ingredients in fire-suppressing aqueous film-forming foams (AFFF). Several PFAS have been demonstrated to be persistent, bioaccumulative and toxic. This study better characterizes the bioaccumulation of PFAS in freshwater fish through a spatial and temporal analysis of surface water and sediment from a stormwater pond in a former Naval air station (NAS) with historic AFFF use. We sampled environmental media from four locations twice per week for five weeks and sampled fish at the end of the sampling effort. The primary PFAS identified in surface water, sediment, and biota were perfluorooctane sulfonate (PFOS) and perfluorohexane sulfonate (PFHxS) followed by perfluorooctanoic acid (PFOA) in environmental media and perfluoroheptane sulfonate (PFHpS) in biota. We observed significant temporal variability in surface water concentrations at the pond headwaters following stochastic events such as heavy rainfall for many compounds, particularly PFHxS. Sediment concentrations varied most significantly across sampling locations. In fish, liver tissue presented the

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Author

Abbi S. Brown; Xiaoyan Yun; Erica R. McKenzie; Christopher G. Heron; Jennifer A. Field; Christopher J. Salice

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)