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. 2024 Oct 16;58(43):19440–19453. doi: 10.1021/acs.est.4c07016

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© 2024 The Authors. Published by American Chemical Society

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Decline in targeted sum concentration (ng L^–1 or ng g^–1 wet-weight) of perfluorocarboxylates (∑PFCA), perfluorosulfonates (∑PFSA), and perfluoroalkyl sulfonamides (∑FASA) by site and with hydrological distance for (A) surface water, (B) fish and eel muscle tissue, and (C) fish and eel whole-body samples. The Quashnet River surface water samples include data from this study (diamonds) and Ruyle et al.⁷ (squares). Best fit (R² and p-values) represent weighted least-squares linear regression (colored lines) with 95% confidence intervals (shaded areas) for surface water samples (diamonds/squares) and eel muscle tissue and whole-body samples (triangles) from the river and estuary.