Residues of organochlorine pesticides, polychlorinated biphenyls, and mercury in bald eagle eggs and changes in shell thickness--1969 and 1970
Pesticides Monitoring Journal
By: Stanley N. Wiemeyer, B.M. Mulhern, F.J. Ligas, R.J. Hensel, J.E. Mathisen, F.C. Robards, and S. Postupalsky
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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.
| 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 |
| Google Analytic Metrics | Metrics page |