Polychlorinated Biphenyl (PCB) congener concentrations in aquatic birds. Case study: Ilha Grande Bay, Rio de Janeiro, Brazil

A study analyzing livers of aquatic birds from Ilha Grande Bay, Brazil, found relatively low levels of polychlorinated biphenyl (PCB) congeners but highlighted potential widespread biological and mutagenic risks. The research, conducted between 2005 and 2010, examined 16 PCB congeners in four bird species: Egretta caerulea, Nycticorax nycticorax, Egretta thula, and Ardea cocoi. Statistical analysis using Origin software revealed significant differences in congener concentrations, suggesting environmental contamination could pose risks to trophic levels and human health. The findings underscore the importance of monitoring PCB exposure in aquatic ecosystems.

FERREIRA, A. P. (2013). Polychlorinated Biphenyl (PCB) congener concentrations in aquatic birds. Case study: Ilha Grande Bay, Rio de Janeiro, Brazil. Anais Da Academia Brasileira de Ciências, 85(4), 1379–1388. https://doi.org/10.1590/0001-3765201398112