| persistent organochlorine pollutants in ringed seals and polar bears collected from northern alaska. | blubber samples from ringed seal (phoca hispida; n = 8) and polar bear subcutaneous fat (ursus maritimus; n = 5) were collected near barrow, alaska in 1996 as part of the alaska marine mammal tissue archival project (ammtap) and retained in the national biomonitoring specimen bank at the national institute of standards and technology in gaithersburg, maryland (usa). the samples were analyzed for a variety of persistent organochlorine pollutants (pops) including polychlorinated biphenyls (pcbs), ... | 2002 | 11885579 |