Fluorinated organic compounds in an Eastern arctic marine food web
An eastern Arctic marine food web was analyzed for perfluorooctanesulfonate (PFOS, C8F17SO3-), perfluorooctanoate (PFOA, C7F15COO-), perfluorooctane sulfonamide (PFOSA, C8F17SO2NH2), and N-ethylperfluorooctane sulfonamide (N-EtPFOSA, C8F 17SO2NHCH2CH3) to examine the extent of bioaccumulation. PFOS...
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Online Access: | https://scholar.uwindsor.ca/glierpub/435 https://doi.org/10.1021/es049620g |
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ftunivwindsor:oai:scholar.uwindsor.ca:glierpub-1437 2023-06-11T04:07:58+02:00 Fluorinated organic compounds in an Eastern arctic marine food web Tomy, Gregg T. Budakowski, Wes Halldorson, Thor Helm, Paul A. Stern, Gary A. Friesen, Ken Pepper, Karen Tittlemier, Sheryl A. Fisk, Aaron T. 2004-12-15T08:00:00Z https://scholar.uwindsor.ca/glierpub/435 https://doi.org/10.1021/es049620g unknown Scholarship at UWindsor https://scholar.uwindsor.ca/glierpub/435 doi:10.1021/es049620g https://doi.org/10.1021/es049620g Great Lakes Institute for Environmental Research Publications text 2004 ftunivwindsor https://doi.org/10.1021/es049620g 2023-05-06T19:10:57Z An eastern Arctic marine food web was analyzed for perfluorooctanesulfonate (PFOS, C8F17SO3-), perfluorooctanoate (PFOA, C7F15COO-), perfluorooctane sulfonamide (PFOSA, C8F17SO2NH2), and N-ethylperfluorooctane sulfonamide (N-EtPFOSA, C8F 17SO2NHCH2CH3) to examine the extent of bioaccumulation. PFOS was detected in all species analyzed, and mean concentrations ranged from 0.28 ± 0.09 ng/g (arithmetic mean ± 1 standard error, wet wt, whole body) in clams (Mya truncate) to 20.2 ± 3.9 ng/g (wet wt, liver) in glaucous gulls (Larus hyperboreus). PFOA was detected in approximately 40% of the samples analyzed at concentrations generally smaller than those found for PFOS; the greatest concentrations were observed in zooplankton (2.6 ± 0.3 ng/g, wet wt). N-EtPFOSA was detected in all species except redfish with mean concentrations ranging from 0.39 ± 0.07 ng/g (wet wt) in mixed zooplankton to 92.8 ± 41.9 ng/g (wet wt) in Arctic cod (Boreogadus saida). This is the first report of N-EtPFOSA in Arctic biota. PFOSA was only detected in livers of beluga (Delphinapterus leucas) (20.9 ± 7.9 ng/g, wet wt) and narwhal (Monodon monoceros) (6.2 ± 2.3 ng/g, wet wt), suggesting that N-EtPFOSA and other PFOSA-type precursors are likely present but are being biotransformed to PFOSA. A positive linear relationship was found between PFOS concentrations (wet wt) and trophic level (TL), based on §15N values, (r2 = 0.51, p < 0.0001) resulting in a trophic magnification factor of 3.1. TL-corrected biomagnification factor estimates for PFOS ranged from 0.4 to 9. Both results indicate that PFOS biomagnifies in the Arctic marine food web when liver concentrations of PFOS are used for seabirds and marine mammals. However, transformation of N-EtPFOSA and PFOSA and potential other perfluorinated compounds to PFOS may contribute to PFOS levels in marine mammals and may inflate estimated biomagnification values. None of the other fluorinated compounds (N-EtPFOSA, PFOSA, and PFOA) were found to have a significant relationship with TL, but BMFTL ... Text Arctic cod Arctic Beluga Beluga* Boreogadus saida Delphinapterus leucas Larus hyperboreus Monodon monoceros narwhal* Zooplankton University of Windsor, Ontario: Scholarship at UWindsor Arctic Environmental Science & Technology 38 24 6475 6481 |
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Open Polar |
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University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
unknown |
description |
An eastern Arctic marine food web was analyzed for perfluorooctanesulfonate (PFOS, C8F17SO3-), perfluorooctanoate (PFOA, C7F15COO-), perfluorooctane sulfonamide (PFOSA, C8F17SO2NH2), and N-ethylperfluorooctane sulfonamide (N-EtPFOSA, C8F 17SO2NHCH2CH3) to examine the extent of bioaccumulation. PFOS was detected in all species analyzed, and mean concentrations ranged from 0.28 ± 0.09 ng/g (arithmetic mean ± 1 standard error, wet wt, whole body) in clams (Mya truncate) to 20.2 ± 3.9 ng/g (wet wt, liver) in glaucous gulls (Larus hyperboreus). PFOA was detected in approximately 40% of the samples analyzed at concentrations generally smaller than those found for PFOS; the greatest concentrations were observed in zooplankton (2.6 ± 0.3 ng/g, wet wt). N-EtPFOSA was detected in all species except redfish with mean concentrations ranging from 0.39 ± 0.07 ng/g (wet wt) in mixed zooplankton to 92.8 ± 41.9 ng/g (wet wt) in Arctic cod (Boreogadus saida). This is the first report of N-EtPFOSA in Arctic biota. PFOSA was only detected in livers of beluga (Delphinapterus leucas) (20.9 ± 7.9 ng/g, wet wt) and narwhal (Monodon monoceros) (6.2 ± 2.3 ng/g, wet wt), suggesting that N-EtPFOSA and other PFOSA-type precursors are likely present but are being biotransformed to PFOSA. A positive linear relationship was found between PFOS concentrations (wet wt) and trophic level (TL), based on §15N values, (r2 = 0.51, p < 0.0001) resulting in a trophic magnification factor of 3.1. TL-corrected biomagnification factor estimates for PFOS ranged from 0.4 to 9. Both results indicate that PFOS biomagnifies in the Arctic marine food web when liver concentrations of PFOS are used for seabirds and marine mammals. However, transformation of N-EtPFOSA and PFOSA and potential other perfluorinated compounds to PFOS may contribute to PFOS levels in marine mammals and may inflate estimated biomagnification values. None of the other fluorinated compounds (N-EtPFOSA, PFOSA, and PFOA) were found to have a significant relationship with TL, but BMFTL ... |
format |
Text |
author |
Tomy, Gregg T. Budakowski, Wes Halldorson, Thor Helm, Paul A. Stern, Gary A. Friesen, Ken Pepper, Karen Tittlemier, Sheryl A. Fisk, Aaron T. |
spellingShingle |
Tomy, Gregg T. Budakowski, Wes Halldorson, Thor Helm, Paul A. Stern, Gary A. Friesen, Ken Pepper, Karen Tittlemier, Sheryl A. Fisk, Aaron T. Fluorinated organic compounds in an Eastern arctic marine food web |
author_facet |
Tomy, Gregg T. Budakowski, Wes Halldorson, Thor Helm, Paul A. Stern, Gary A. Friesen, Ken Pepper, Karen Tittlemier, Sheryl A. Fisk, Aaron T. |
author_sort |
Tomy, Gregg T. |
title |
Fluorinated organic compounds in an Eastern arctic marine food web |
title_short |
Fluorinated organic compounds in an Eastern arctic marine food web |
title_full |
Fluorinated organic compounds in an Eastern arctic marine food web |
title_fullStr |
Fluorinated organic compounds in an Eastern arctic marine food web |
title_full_unstemmed |
Fluorinated organic compounds in an Eastern arctic marine food web |
title_sort |
fluorinated organic compounds in an eastern arctic marine food web |
publisher |
Scholarship at UWindsor |
publishDate |
2004 |
url |
https://scholar.uwindsor.ca/glierpub/435 https://doi.org/10.1021/es049620g |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic Beluga Beluga* Boreogadus saida Delphinapterus leucas Larus hyperboreus Monodon monoceros narwhal* Zooplankton |
genre_facet |
Arctic cod Arctic Beluga Beluga* Boreogadus saida Delphinapterus leucas Larus hyperboreus Monodon monoceros narwhal* Zooplankton |
op_source |
Great Lakes Institute for Environmental Research Publications |
op_relation |
https://scholar.uwindsor.ca/glierpub/435 doi:10.1021/es049620g https://doi.org/10.1021/es049620g |
op_doi |
https://doi.org/10.1021/es049620g |
container_title |
Environmental Science & Technology |
container_volume |
38 |
container_issue |
24 |
container_start_page |
6475 |
op_container_end_page |
6481 |
_version_ |
1768381077836005376 |