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Comparative Toxicity of Aquatic Per- and Polyfluoroalkyl Substance Exposure in Three Species of Amphibians.
Flynn, R Wesley; Hoover, Gary; Iacchetta, Michael; Guffey, Samuel; de Perre, Chloe; Huerta, Belinda; Li, Weiming; Hoverman, Jason T; Lee, Linda; Sepúlveda, Maria S.
Afiliación
  • Flynn RW; Upper Midwest Environmental Sciences Center, US Geological Survey, La Crosse, Wisconsin, USA.
  • Hoover G; Department of Forestry & Natural Resources, Purdue University, West Lafayette, Indiana, USA.
  • Iacchetta M; Department of Forestry & Natural Resources, Purdue University, West Lafayette, Indiana, USA.
  • Guffey S; Department of Forestry & Natural Resources, Purdue University, West Lafayette, Indiana, USA.
  • de Perre C; Department of Forestry & Natural Resources, Purdue University, West Lafayette, Indiana, USA.
  • Huerta B; Department of Agronomy, Purdue University, West Lafayette, Indiana, USA.
  • Li W; Department of Fisheries & Wildlife, Michigan State University, Lansing, Michigan, USA.
  • Hoverman JT; School of Chemical Sciences, Dublin City University, Dublin, Ireland.
  • Lee L; Department of Fisheries & Wildlife, Michigan State University, Lansing, Michigan, USA.
  • Sepúlveda MS; Department of Forestry & Natural Resources, Purdue University, West Lafayette, Indiana, USA.
Environ Toxicol Chem ; 41(6): 1407-1415, 2022 06.
Article en En | MEDLINE | ID: mdl-35199880
Per- and polyfluoroalkyl substances (PFAS) are contaminants of concern due to their widespread occurrence in the environment, persistence, and potential to elicit a range of negative health effects. Per- and polyfluoroalkyl substances are regularly detected in surface waters, but their effects on many aquatic organisms are still poorly understood. Species with thyroid-dependent development, like amphibians, can be especially susceptible to PFAS effects on thyroid hormone regulation. We examined sublethal effects of aquatic exposure to four commonly detected PFAS on larval northern leopard frogs (Rana [Lithobates] pipiens), American toads (Anaxyrus americanus), and eastern tiger salamanders (Ambystoma tigrinum). Animals were exposed for 30 days (frogs and salamanders) or until metamorphosis (toads) to 10, 100, or 1000 µg/L of perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorohexane sulfonate (PFHxS), or 6:2 fluorotelomer sulfonate (6:2 FTS). We determined that chronic exposure to common PFAS can negatively affect amphibian body condition and development at concentrations as low as 10 µg/L. These effects were highly species dependent, with species having prolonged larval development (frogs and salamanders) being more sensitive to PFAS than more rapidly developing species (toads). Our results demonstrate that some species could experience sublethal effects at sites with surface waters highly affected by PFAS. Our results also indicate that evaluating PFAS toxicity using a single species may not be sufficient for accurate amphibian risk assessment. Future studies are needed to determine whether these differences in susceptibility can be predicted from species' life histories and whether more commonly occurring environmental levels of PFAS could affect amphibians. Environ Toxicol Chem 2022;41:1407-1415. © 2022 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ácidos Alcanesulfónicos / Fluorocarburos Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Animals Idioma: En Revista: Environ Toxicol Chem Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Ácidos Alcanesulfónicos / Fluorocarburos Tipo de estudio: Prognostic_studies / Risk_factors_studies Límite: Animals Idioma: En Revista: Environ Toxicol Chem Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos