Scientific journal publication Primary source regions of polychlorinated biphenyls (PCBs) measured in the Arctic. Ubl, S.; Scheringer, M.; Stohl, A.; Burkhart, J.F.; Hungerbuhler, K. Publication details Journal: Atmospheric Environment, 62, 391–399, 2012 DOI: 10.1016/j.atmosenv.2012.07.061