In 2007 archived great blue heron (Ardea herodias) eggs collected from Indiana Dunes National Lakeshore, IN, (Indiana Dunes) in 1993 were analyzed for 11 perfluorinated compounds (PFCs) and 7 polybrominated diphenyl ethers (PBDEs). Concentrations of perfluorooctane sulfonate, the major contributor to total PFC concentrations, were below the toxicity thresholds estimated for bobwhite quail (Colinus virginianus) and mallards (Anas platyrhynchos), but within the toxicity threshold estimated for white leghorn chickens (Gallus domesticus). The ranking of PBDE congener concentrations by percent concentration (PBDE-47>-99>-100>153>-154>-28>-183) was consistent with the Penta-PBDE formulation. Total PBDE concentrations in great blue heron eggs from Indiana Dunes were elevated and probably reflect local contamination from highly urbanized and industrialized inputs into Lake Michigan. Polybrominated diphenyl ether concentrations were within levels associated with altered reproductive behavior in other avian species and based on trends in other Great Lakes birds are probably higher today.
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1 September 2009
Perfluorinated Compounds and Polybrominated Diphenyl Ethers in Great Blue Heron Eggs from Indiana Dunes National Lakeshore, Indiana
Thomas W. Custer,
Kuruthachalam Kannan,
Lin Tao,
Abhinav R. Saxena,
Bill Route
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Journal of Great Lakes Research
Vol. 35 • No. 3
September 2009
Vol. 35 • No. 3
September 2009
eggs
Great Blue Heron
perfluorinated compounds
Perfluorooctane sulfonate
polybrominated diphenyl ethers