| polychlorinated biphenyl (pcb) congener concentrations in aquatic birds. case study: ilha grande bay, rio de janeiro, brazil. | livers from 108 birds found prostrate or dead in ilha grande bay between 2005 and 2010 were analyzed for 16 pcb congeners (iupac numbers 8, 18, 28, 31, 52, 77, 101, 118, 126, 128, 138, 149, 153, 169, 170, and 180). the species analyzed were egretta caerulea (linnaeus 1758), nycticorax nycticorax (linnaeus 1758), egretta thula (molina 1782), and ardea cocoi (linnaeus 1766). the analysis were performed using origin software (7.5, 2004) with a significant level of p<0.05. data were checked for adhe ... | 2013 | 24346796 |