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The geographical distribution of methyl sulphone (MeSO2-) PCB and DDE metabolites is unknown for any species in any region. In this study, pooled male polar bear (Ursus maritimus) adipose samples(More)
High prevalence of uterine occlusions and sterility is found among Baltic ringed and grey seal. Polychlorinated biphenyls (CBs) are suspected to be the main cause. The CB concentrations are higher in(More)