USGS - science for a changing world

Upper Midwest Environmental Sciences Center

Wildlife Toxicology

Study site locations: Iowa - Contaminant exposure of tree swallows in the Quad Cities area (Pool 15 of the Mississippi River)

Concentrations of PCBs were similar and at background concentrations in tree swallow eggs from three sites in Pool 15. Concentrations of both tetrachlorodibenzo-p-dioxin and tetrachlorodibenzofuran were elevated above background concentrations in pooled egg samples. 

Graph
   

Custer, C. M., T. W. Custer, and M. Coffey. 2000. Organochlorine chemicals in tree swallows nesting in Pool 15 of the Upper Mississippi River.  Bulletin of Environmental Contamination and Toxicology. 64:341-346.

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey

URL: http://www.umesc.usgs.gov/wildlife_toxicology/study_sites/iowa/wt_ia_quad_cities_tree_swallows.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: January 14, 2011