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Residues of organochlorine pesticides, polychlorinated biphenyls, and mercury in bald eagle eggs and changes in shell thickness--1969 and 1970

Pesticides Monitoring Journal

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Abstract

Twenty-three bald eagle eggs collected in Alaska, Maine, Michigan, Minnesota, and Florida during 1969 and 1970 were analyzed for organochlorine pesticides, polychlorinated biphenyls, and mercury. All eggs contained residues of DDE, dieldrin, PCB's, and mercury. Average residue concentrations were lowest in eggs from Alaska. Significant eggshell thinning has occurred among eggs from most major areas sampled. Some eggs contained DDE residues of the same magnitude as those that produced shell thinning in experimental species. High dieldrin residues in some eggs could be having an adverse effect on reproductive success.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Residues of organochlorine pesticides, polychlorinated biphenyls, and mercury in bald eagle eggs and changes in shell thickness--1969 and 1970
Series title:
Pesticides Monitoring Journal
Volume
6
Issue:
1
Year Published:
1972
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
50-55
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Pesticides Monitoring Journal
First page:
50
Last page:
55
Number of Pages:
6