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Changes in levels of organochlorines in woodcock wings from 1971 to 1975

Environmental Monitoring and Assessment

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Abstract

Wings from woodcock (Philohela minor) were first monitored for organochlorine pesticides and polychlorinated biphenyls (PCBs) in the eastern U.S. in 1971. Regional differences in these compounds were clearly demonstrated and baseline residue levels were obtained for later comparisons. An expanded sampling of wings in 1972 revealed that residues in wings of adult woodcock may differ significantly from those in immatures, and that residues of several important agricultural insecticides and PCBs had declined significantly. More extensive sampling was undertaken in 1975 to determine if changes in residue levels had taken place in the intervening years. PCBs, mirex, and heptachlor epoxide increased significantly between 1972 and 1975 in adult woodcock wings. In immature woodcock wings mirex, dieldrin, and PCBs increased significantly between 1972 and 1975, but DDT residues decreased significantly.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Changes in levels of organochlorines in woodcock wings from 1971 to 1975
Series title:
Environmental Monitoring and Assessment
Volume
4
Issue:
2
Year Published:
1984
Language:
English
Contributing office(s):
Patuxent Wildlife Research Center
Description:
105-111
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Monitoring and Assessment
First page:
105
Last page:
111