Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf
The biomagnification behavior of perfluorinated carboxylates (PFCAs) and perfluorinated sulfonates (PFSAs) was studied in terrestrial food webs consisting of lichen and plants, caribou, and wolves from two remote northern areas in Canada. Six PFCAs with eight to thirteen carbons and perfluorooctane...
Published in: | Environmental Science & Technology |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Chemical Society
2011
|
Subjects: | |
Online Access: | https://doi.org/10.1021/es201353v |
id |
ftempa:oai:dora:empa_4998 |
---|---|
record_format |
openpolar |
spelling |
ftempa:oai:dora:empa_4998 2023-05-15T15:08:22+02:00 Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf Müller, Claudia E. De Silva, Amila O. Small, Jeff Williamson, Mary Wang, Xiaowa Morris, Adam Katz, Sharon Gamberg, Mary Muir, Derek C.G. 2011 https://doi.org/10.1021/es201353v eng eng American Chemical Society Environmental Science and Technology--Environ. Sci. Technol.--journals:872--0013-936X--1520-5851 empa:4998 journal id: journals:872 issn: 0013-936X e-issn: 1520-5851 ut: 000295704500012 local: 16757 scopus: 2-s2.0-80054687132 doi:10.1021/es201353v Text Journal Article 2011 ftempa https://doi.org/10.1021/es201353v 2023-03-04T17:16:32Z The biomagnification behavior of perfluorinated carboxylates (PFCAs) and perfluorinated sulfonates (PFSAs) was studied in terrestrial food webs consisting of lichen and plants, caribou, and wolves from two remote northern areas in Canada. Six PFCAs with eight to thirteen carbons and perfluorooctane sulfonate (PFOS) were regularly detected in all species. Lowest concentrations were found for vegetation (0.02–0.26 ng/g wet weight (ww) sum (Σ) PFCAs and 0.002–0.038 ng/g ww PFOS). Wolf liver showed highest concentrations (10–18 ng/g ww ΣPFCAs and 1.4–1.7 ng/g ww PFOS) followed by caribou liver (6–10 ng/g ww ΣPFCAs and 0.7–2.2 ng/g ww PFOS). Biomagnification factors were highly tissue and substance specific. Therefore, individual whole body concentrations were calculated and used for biomagnification and trophic magnification assessment. Trophic magnification factors (TMF) were highest for PFCAs with nine to eleven carbons (TMF = 2.2–2.9) as well as PFOS (TMF = 2.3–2.6) and all but perfluorooctanoate were significantly biomagnified. The relationship of PFCA and PFSA TMFs with the chain length in the terrestrial food chain was similar to previous studies for Arctic marine mammal food web, but the absolute values of TMFs were around two times lower for this study than in the marine environment. This study demonstrates that challenges remain for applying the TMF approach to studies of biomagnification of PFCAs and PFSAs, especially for terrestrial animals. Article in Journal/Newspaper Arctic DORA Empa Arctic Canada Environmental Science & Technology 45 20 8665 8673 |
institution |
Open Polar |
collection |
DORA Empa |
op_collection_id |
ftempa |
language |
English |
description |
The biomagnification behavior of perfluorinated carboxylates (PFCAs) and perfluorinated sulfonates (PFSAs) was studied in terrestrial food webs consisting of lichen and plants, caribou, and wolves from two remote northern areas in Canada. Six PFCAs with eight to thirteen carbons and perfluorooctane sulfonate (PFOS) were regularly detected in all species. Lowest concentrations were found for vegetation (0.02–0.26 ng/g wet weight (ww) sum (Σ) PFCAs and 0.002–0.038 ng/g ww PFOS). Wolf liver showed highest concentrations (10–18 ng/g ww ΣPFCAs and 1.4–1.7 ng/g ww PFOS) followed by caribou liver (6–10 ng/g ww ΣPFCAs and 0.7–2.2 ng/g ww PFOS). Biomagnification factors were highly tissue and substance specific. Therefore, individual whole body concentrations were calculated and used for biomagnification and trophic magnification assessment. Trophic magnification factors (TMF) were highest for PFCAs with nine to eleven carbons (TMF = 2.2–2.9) as well as PFOS (TMF = 2.3–2.6) and all but perfluorooctanoate were significantly biomagnified. The relationship of PFCA and PFSA TMFs with the chain length in the terrestrial food chain was similar to previous studies for Arctic marine mammal food web, but the absolute values of TMFs were around two times lower for this study than in the marine environment. This study demonstrates that challenges remain for applying the TMF approach to studies of biomagnification of PFCAs and PFSAs, especially for terrestrial animals. |
format |
Article in Journal/Newspaper |
author |
Müller, Claudia E. De Silva, Amila O. Small, Jeff Williamson, Mary Wang, Xiaowa Morris, Adam Katz, Sharon Gamberg, Mary Muir, Derek C.G. |
spellingShingle |
Müller, Claudia E. De Silva, Amila O. Small, Jeff Williamson, Mary Wang, Xiaowa Morris, Adam Katz, Sharon Gamberg, Mary Muir, Derek C.G. Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
author_facet |
Müller, Claudia E. De Silva, Amila O. Small, Jeff Williamson, Mary Wang, Xiaowa Morris, Adam Katz, Sharon Gamberg, Mary Muir, Derek C.G. |
author_sort |
Müller, Claudia E. |
title |
Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
title_short |
Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
title_full |
Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
title_fullStr |
Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
title_full_unstemmed |
Biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
title_sort |
biomagnification of perfluorinated compounds in a remote terrestrial food chain: lichen-caribou-wolf |
publisher |
American Chemical Society |
publishDate |
2011 |
url |
https://doi.org/10.1021/es201353v |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Environmental Science and Technology--Environ. Sci. Technol.--journals:872--0013-936X--1520-5851 empa:4998 journal id: journals:872 issn: 0013-936X e-issn: 1520-5851 ut: 000295704500012 local: 16757 scopus: 2-s2.0-80054687132 doi:10.1021/es201353v |
op_doi |
https://doi.org/10.1021/es201353v |
container_title |
Environmental Science & Technology |
container_volume |
45 |
container_issue |
20 |
container_start_page |
8665 |
op_container_end_page |
8673 |
_version_ |
1766339739632271360 |