Laboratory‐Derived Bioaccumulation Kinetic Parameters for Four Per‐ and Polyfluoroalkyl Substances in Freshwater Mussels

Jeffery A. Steevens; Rebecca Dorman; Eric BrunsonJames KunzErin L. PulsterS. Rebekah BurketKevin M. StroskiJaylen L. SimsMatt F. SimcikBryan W. Brooks

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Laboratory‐Derived Bioaccumulation Kinetic Parameters for Four Per‐ and Polyfluoroalkyl Substances in Freshwater Mussels

机译：Laboratory‐Derived Bioaccumulation Kinetic Parameters for Four Per‐ and Polyfluoroalkyl Substances in Freshwater Mussels

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Although freshwater mussels are imperiled and identified as key conservation priorities, limited bioaccumulationinformation is available on these organisms for contaminants of emerging concern. In the present study we investigated thebioaccumulation of per‐ and polyfluoroalkyl substances (PFAS) in the model freshwater pond mussel Sagittunio subrostratusbecause mussels provide important ecosystem services and are important components of aquatic systems where PFAS occur. Inthe present study we selected four representative perfluorinated carboxylic acids and sulfonic acids, then determined thebioaccumulation kinetics of freshwater mussels in a controlled laboratory study. Because uptake (ku) and elimination (ke) rateconstants and time to steady state are important parameters for food web bioaccumulation models, we derived bioaccumulationkinetic parameters following exposure to perfluorohexane sulfonic acid (PFHxS), perfluorooctane sulfonic acid (PFOS), andperfluorodecanoic acid (PFDA) at 10 μg/L and perfluoroundecanoic acid (PFUnDA) at 1 μg/L during a 14‐day uptake periodfollowed by a 7‐day elimination period. Kinetic and ratio‐based bioaccumulation factors (BAFs) were subsequently calculated, forexample ratio‐based BAFs for mussel at day 7 were determined for PFHxS (0.24 ± 0.08 L/kg), PFOS (7.73 ± 1.23 L/kg), PFDA(4.80 ± 1.21 L/kg), and PFUnDA (84.0 ± 14.4 L/kg). We generally observed that, for these four model PFAS, freshwater musselshave relatively low BAF values compared with other aquatic invertebrates and fish.

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《Environmental toxicology and chemistry /》 |2023年第6期|1190-1198|共9页
作者
Jeffery A. Steevens; Rebecca Dorman; Eric BrunsonJames KunzErin L. PulsterS. Rebekah BurketKevin M. StroskiJaylen L. SimsMatt F. SimcikBryan W. Brooks;
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作者单位

Columbia Environmental Research Center, US Geological Survey, Columbia, Missouri, USA;

Department of Environmental Science, Center for Reservoir and Aquatic Systems Research, Baylor University, Waco, Texas, USA;

Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
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关键词
Perfluoroalkyl substance (PFAS); Perfluorooctane sulfonate (PFOS); Aquatic invertebrates; Bioaccumulation;

Laboratory‐Derived Bioaccumulation Kinetic Parameters for Four Per‐ and Polyfluoroalkyl Substances in Freshwater Mussels

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