Abstract
The levels of HCB, α-BHC, γ-BHC, DDT (plus analogues), and PCB were determined in adipose fat from seven species of diving ducks at their winter quarters in the southern Baltic. PCB, ΣDDT and HCB were detected in all samples. PCB's were highest followed by ΣDDT and HCB. Residues of γ-BHC were detected in only four of 129 samples examined, but, for all samples from the long-tailed duck, only levels of α-BHC were positive. Differences between HCB, ΣDDT and PCB residue levels between males and females of the scaup-duck were statistically insignificant ( P<0.01).
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