Organochlorines and mercury in peregrine falcon eggs from western North Carolina.
Tom Augspurger Allen Boynton
251 - 254
Concentrations of organochlorine pesticides and mercury were determined in five Peregrine Falcon (Falco peregrinus) eggs collected from a re-established population in western North Carolina. Geometric mean concentrations of p,p'DDE (3.37 ppm fresh wet weight), total metabolites of DDT (3.73 ppm), total chlordane components and metabolites (1.11 ppm), dieldrin (0.27 ppm), lindane (0.02 ppm), and mercury (0.10 ppm) were generally below levels associated with reproductive impairment. The 0.334 mm arithmetic mean eggshell thickness was approximately 7% thinner than normal, pre-DDT era Peregrine Falcon eggshells from the original United States eastern population.
Journal of Raptor Research
The Raptor Research Foundation
http://www.fws.gov/contaminants/Documents/JRR1998Augspurger.pdf, 500 KB
U.S. Fish and Wildlife Service - Raliegh, North Carolina, Ecological Services Field Office