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Occurrence and biomagnification of perfluoroalkyl substances (PFAS) in Lake Michigan fishes.
Miranda, Daniele A; Zachritz, Alison M; Whitehead, Heather D; Cressman, Shannon R; Peaslee, Graham F; Lamberti, Gary A.
Afiliación
  • Miranda DA; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, United States; Environmental Change initiative, University of Notre Dame, Notre Dame, IN 46556, United States; Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN 46556, United States. Electr
  • Zachritz AM; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, United States.
  • Whitehead HD; Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN 46556, United States; Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, United States.
  • Cressman SR; U.S. Fish and Wildlife Service, Green Bay Fish and Wildlife Conservation Office, New Franken, WI 54229, United States.
  • Peaslee GF; Environmental Change initiative, University of Notre Dame, Notre Dame, IN 46556, United States; Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN 46556, United States.
  • Lamberti GA; Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, United States; Environmental Change initiative, University of Notre Dame, Notre Dame, IN 46556, United States.
Sci Total Environ ; 895: 164903, 2023 Oct 15.
Article en En | MEDLINE | ID: mdl-37355115
We measured perfluoroalkyl substances (PFAS) in prey and predator fish from Lake Michigan (USA) to investigate the occurrence and biomagnification of these compounds in this important ecosystem. Twenty-one PFAS were analyzed in 117 prey fish obtained from sites across Lake Michigan and in 87 salmonids collected in four lake quadrants. The mean concentration of sum (∑) PFAS above the method detection limit was 12.7 ± 6.96 ng g-1 wet weight in predator fish (all of which were salmonids) and 10.7 ± 10.4 ng g-1 in prey fish, with outlier levels found in slimy sculpin, Cottus cognatus (187 ± 12.2 ng g-1 ww). Perfluorooctanoic sulfonic acid (PFOS) was the most frequently detected and most abundant compound of the 21 PFAS, occurring in 98 % of individuals with a mean concentration of 9.86 ± 6.36 ng g-1 ww without outliers. Perfluoroalkyl carboxylates (PFCA) concentrations were higher in prey fish than in predators, with some compounds such as perfluorooctanoic acid (PFOA) being detected in higher frequency in prey fish. Besides PFOS, detection of several long-chain (C8-C12) PFCAs were observed in >80 % of the prey fish. Overall, the observed concentrations in Lake Michigan fish were lower than those reported in other Laurentian Great Lakes except for Lake Superior. Biomagnification factors (BMFs) for PFOS exceeded 1.0 (range, 1.80 to 5.12) in all predator-prey relationships analyzed, indicating biomagnification of these compounds, whereas BMFs of other long-chain PFCAs varied according to the fish species. PFAS were found in all fish species measured from Lake Michigan and commonly biomagnified from prey to predator fish, strongly suggesting a dietary connection.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Salmonidae / Contaminantes Químicos del Agua / Ácidos Alcanesulfónicos / Fluorocarburos Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Salmonidae / Contaminantes Químicos del Agua / Ácidos Alcanesulfónicos / Fluorocarburos Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Sci Total Environ Año: 2023 Tipo del documento: Article Pais de publicación: Países Bajos