Perfluorinated and polyfluorinated compounds in lake food webs from the Canadian high Arctic
Lescord, GL; Kidd, KA; De Silva, AO; Williamson, M; Spencer, C; Wang, X; Muir, DCG
HERO ID
2851014
Reference Type
Journal Article
Year
2015
Language
English
PMID
| HERO ID | 2851014 |
|---|---|
| In Press | No |
| Year | 2015 |
| Title | Perfluorinated and polyfluorinated compounds in lake food webs from the Canadian high Arctic |
| Authors | Lescord, GL; Kidd, KA; De Silva, AO; Williamson, M; Spencer, C; Wang, X; Muir, DCG |
| Journal | Environmental Science & Technology |
| Volume | 49 |
| Issue | 5 |
| Page Numbers | 2694-2702 |
| Abstract | Per- and polyfluorinated alkyl substances (PFASs) enter Arctic lakes through long-range atmospheric transport and local contamination, but their behavior in aquatic food webs at high latitudes is poorly understood. This study compared the concentrations of perfluorocarboxylates, perfluorosulfonates, and fluorotelomer sulfonates (FTS) in biotic and abiotic samples from six high Arctic lakes near Resolute Bay, Nunavut, Canada. Two of these lakes are known to be locally contaminated by a small airport and Arctic char (Salvelinus alpinus) from these lakes had over 100 times higher total [PFAS] when compared to fish from neighboring lakes. Perfluorononanoate (PFOA) and perfluorooctanesulfonate (PFOS) dominated in char, benthic chironomids (their main prey), and sediments, while pelagic zooplankton and water were dominated by lower chain acids and perfluorodecanesulfonate (PFDS). This study also provides the first measures of perfluoroethylcyclohexanesulfonate (PFECHS) and FTS compounds in water, sediment, juvenile char, and benthic invertebrates from lakes in the high Arctic. Negative relationships between [PFAS] and δ(15)N values (indicative of trophic position) within these food webs indicated no biomagnification. Overall, these results suggest that habitat use and local sources of contamination, but not trophic level, are important determinants of [PFAS] in biota from freshwater food webs in the Canadian Arctic. |
| Doi | 10.1021/es5048649 |
| Pmid | 25604756 |
| Wosid | WOS:000350611100018 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | ProQuest URL: https://search.proquest.com/docview/1668271063?accountid=171501 |
| Is Public | Yes |
| Language Text | English |
| Relationship(s) |
|