TitleAbstractYear(sorted ascending)
the effects of heptachlor and lindane on birds, columbia basin, oregon and washington, 1976-1981.the effects of heptachlor seed treatments on birds in the vicinity of the umatilla national wildlife refuge, oregon and washington, were investigated from 1978 to 1981. an egg was collected from each of 60 nests representing six species. heptachlor epoxide (he) residues were detected in 35 eggs and were particularly high (8-13 micrograms g-1) in a few eggs of the black-billed magpie, mallard, and ring-necked pheasant. these residues were within the range that induced reproductive problems in oth ...19852417314
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