| p,p'-dde, polychlorinated biphenyls, and endrin in oldsquaws in north america, 1969-73. | organochlorinated compounds were monitored in oldsquaws (clangula hyemalis) and their food from lake michigan between october and may, 1969-72; in adult oldsquaws, eggs, young, and food from northwest hudson bay in 1971; and in oldquaws from five wintering areas other than lake michigan in 1971-73. analyses were conducted on 300 carcasses, 14 wings, 29 gullet samples, and 11 clutches. average residues in carcasses from lake michigan ranged from 4 to 107 ppm pcbs, 2 to 42 ppm dde, and less than 0 ... | 1978 | 97621 |