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Concentrations of 4...
Concentrations of 45 Per- and Polyfluoroalkyl Substances in North American River Otters (Lontra canadensis) from West Virginia, USA
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- Li, Zhong-Min (författare)
- Wadsworth Center, New York State Department of Health and Department of Environmental Health Sciences, State University of New York at Albany, Empire State Plaza, Albany, New York 12237, United States
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- Roos, Anna Maria (författare)
- Naturhistoriska riksmuseet,Enheten för miljöanalys och -forskning,Department of Environmental Monitoring and Research, Swedish Museum of Natural History, Stockholm SE-10405, Sweden
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- Serfass, Thomas L. (författare)
- Department of Biology and Natural Resources, Frostburg State University, Frostburg, Maryland 21532, United States
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- Lee, Conner (författare)
- Wadsworth Center, New York State Department of Health and Department of Environmental Health Sciences, State University of New York at Albany, Empire State Plaza, Albany, New York 12237, United States
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- Kannan, Kurunthachalam (författare)
- Wadsworth Center, New York State Department of Health and Department of Environmental Health Sciences, State University of New York at Albany, Empire State Plaza, Albany, New York 12237, United States
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(creator_code:org_t)
- 2024
- 2024
- Engelska.
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Ingår i: Environmental Science and Technology. - 0013-936X .- 1520-5851. ; 58:4, s. 2089-2101
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- North American river otters (Lontra canadensis) aretop predators in riverine ecosystems and are vulnerable to per- andpolyfluoroalkyl substance (PFAS) exposure. Little is known aboutthe magnitude of exposure and tissue distribution of PFAS in riverotters. We measured 45 PFAS in various tissues of 42 river otterscollected from several watersheds in the state of West Virginia,USA. The median concentrations of ΣAll (sum concentration of45 PFAS) varied among tissues in the following decreasing order:liver (931 ng/g wet weight) > bile > pancreas > lung > kidney >blood > brain > muscle. Perfluoroalkylsulfonates (PFSAs) were thepredominant compounds accounting for 58−75% of the totalconcentrations, followed by perfluoroalkyl carboxylates (PFCAs;21−35%). 8:2 fluorotelomer sulfonate (8:2 FTS), 10:2 FTS, and 6:2 chlorinated polyfluoroalkyl ether sulfonate were frequentlyfound in the liver (50−90%) and bile (96−100%), whereas hexafluoropropylene oxide dimer acid (HFPO-DA) was rarely found.The hepatic concentrations of ΣAll in river otters collected downstream of a fluoropolymer production facility located along theOhio River were 2-fold higher than those in other watersheds. The median whole body burden of ΣAll was calculated to be 1580μg. PFOS and perfluorooctanoic acid (PFOA) concentrations in whole blood of some river otters exceeded the human toxicityreference values, which warrant further studies.
Ämnesord
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Organisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Organic Chemistry (hsv//eng)
Nyckelord
- per- and polyfluoroalkyl substances (PFAS)
- river otter
- time trend
- tissue distribution
- body burden
- Man and the environment
- Naturmiljö och människan
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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