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GLRI: Birds as Indicators of Contaminant Exposure in the Great Lakes


USGS scientists use tree swallows and colonial waterbirds in the Great Lakes watershed to evaluate contaminant Exposure (geographic and spatial); Trends through time(temporal) Effects (reproductive, physiological, genetic) Monitor cleanup actions Objectives 1 and 2 - Exposure data concentrate on several classes of new and emerging contaminants, such as the now ubiquitous flame retardants (polybrominated diphenyl ethers [PBDCs]) and stain repellents (perfluorinated compounds [PFCs]). These data are important in understanding the distribution of these relatively-little studied chemicals in birds. UMESC scientists gather data on several well-studied chemical classes (PCBs, mercury, dioxins) as well because these can still be present [...]

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