Suspect and Nontarget Screening Revealed Class-Specific Temporal Trends (2000–2017) of Poly- and Perfluoroalkyl Substances in St. Lawrence Beluga Whales

2021 ◽  
Vol 55 (3) ◽  
pp. 1659-1671
Author(s):  
Holly Barrett ◽  
Xuan Du ◽  
Magali Houde ◽  
Stéphane Lair ◽  
Jonathan Verreault ◽  
...  
Keyword(s):  
Temporal Trends ◽  
Perfluoroalkyl Substances ◽  
Beluga Whales ◽  
Nontarget Screening

Temporal Trends in Exposure to C4-C8 Perfluoroalkyl Substances among U.S. Adults

2016 ◽  
Vol 2016 (1) ◽  
Author(s):  
Xiaoyun (Sherry) Ye* ◽  
Koyoko Kato ◽  
Janice Ma ◽  
Akil Kalathil ◽  
Lily Jia ◽  
...  
Keyword(s):  
Temporal Trends ◽  
Perfluoroalkyl Substances

scholarly journals Mechanistic modeling of persistent organic pollutant exposure among indigenous Arctic populations: motivations, challenges, and benefits

2017 ◽  
Vol 25 (4) ◽  
pp. 396-407 ◽  
Author(s):  
F. Wania ◽  
M.J. Binnington ◽  
M.S. Curren
Keyword(s):  
Mechanistic Model ◽  
Organic Pollutant ◽  
Temporal Trends ◽  
Chemical Properties ◽  
Mechanistic Modeling ◽  
The Arctic ◽  
Contaminant Exposure ◽  
Beluga Whales ◽  
Sequence Of Events ◽  
Food Species

Indigenous Arctic populations experience elevated exposures to many environmental contaminants compared with groups residing in southern Canada. This is largely due to consumption of traditional foods, some of which (ringed seals, beluga whales, narwhals, etc.) have relatively high concentrations of persistent organic pollutants. Models of contaminant fate, transport, and bioaccumulation represent powerful tools to explore this exposure issue, wherein combined models can be used to mechanistically and dynamically describe the entire sequence of events linking chemical emissions into the environment to ultimate contaminant concentrations in indigenous Arctic populations. In this review, various approaches adapted and applied to understanding indigenous Arctic contaminant exposure are explored, including early models describing body burdens in single traditional food species to more recent approaches holistically examining uptake and bioaccumulation in entire food chains. The applications of these models are also discussed, including attempts to (i) identify chemical properties favouring transport to, and bioaccumulation in, the Arctic; (ii) clarify the main determinants of temporal trends observed in indigenous Arctic biomonitoring; (iii) explore the impacts of permanent and temporary dietary transitions on current and future indigenous Arctic contaminant exposures; and (iv) correlate modeled early-life pollutant exposures with measured health impacts. The review demonstrates the effectiveness of mechanistic model approaches in investigating indigenous Arctic contaminant exposure, and confirms their utility in continued improvements to understanding associated risk in this unique population context.

Levels and Temporal Trends of Toxaphene Congeners in Beluga Whales (Delphinapterus leucas) from the St. Lawrence Estuary, Canada

2003 ◽  
Vol 37 (20) ◽  
pp. 4603-4609 ◽  
Author(s):  
Bruno Gouteux ◽  
Michel Lebeuf ◽  
Derek C. G. Muir ◽  
Jean-Pierre Gagné
Keyword(s):  
Temporal Trends ◽  
Delphinapterus Leucas ◽  
Lawrence Estuary ◽  
Beluga Whales ◽  
St Lawrence Estuary

Spatial and temporal trends of poly- and perfluoroalkyl substances in fish fillets and water collected from pool 2 of the Upper Mississippi River

2017 ◽  
Vol 36 (11) ◽  
pp. 3138-3147 ◽  
Author(s):  
John L. Newsted ◽  
Ryan Holem ◽  
Gary Hohenstein ◽  
Cleston Lange ◽  
Mark Ellefson ◽  
...  
Keyword(s):  
Mississippi River ◽  
Temporal Trends ◽  
Perfluoroalkyl Substances ◽  
Upper Mississippi River ◽  
Fish Fillets ◽  
Spatial And Temporal Trends

Spatial and Temporal Trends of Perfluorinated Compounds in Beluga Whales (Delphinapterus leucas) from Alaska

2011 ◽  
Vol 45 (19) ◽  
pp. 8129-8136 ◽  
Author(s):  
Jessica L. Reiner ◽  
Steven G. O’Connell ◽  
Amanda J. Moors ◽  
John R. Kucklick ◽  
Paul R. Becker ◽  
...  
Keyword(s):  
Temporal Trends ◽  
Perfluorinated Compounds ◽  
Delphinapterus Leucas ◽  
Beluga Whales ◽  
Spatial And Temporal Trends
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