title: PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast.
abstract: In the Northern coast of Rio de Janeiro State is located the major urban centers of the oil and gas industry of Brazil. The intense urbanization in recent decades caused an increase in human use of the coastal areas, which is constantly impacted by agricultural, industrial and wastewater discharges. Franciscana dolphin (Pontoporia blainvillei) is a small cetacean that inhabits coastal regions down to a 30 m depth. This species is considered the most threatened cetacean in the Western South Atlantic Ocean. This study investigated the levels of 52 PCB congeners and 9 PBDE congeners in liver of nine individuals found stranded or accidentally caught between 2011 and 2012 in the Northern coast of Rio de Janeiro. PCB mean levels ranged from 208 to 5543 ng g(-1) lw and PBDEs mean concentrations varied between 13.84 and 36.94 ng g(-1) lw. Contamination patterns suggest the previous use of Aroclor 1254, 1260 and penta-BDE mixtures in Brazil. While still few studies have assessed the organic contamination in cetaceans from the Southern Hemisphere, including Brazil, the levels found in this study could represent a health risk to these endangered species.
authors.affiliation: Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente, 225, Gávea - Rio de Janeiro, RJ 22453-900, Brazil. Electronic address: ricardo.lavandier@gmail.com.
authors.forename: Ricardo
authors.initials: R
authors.lastname: Lavandier
authors.affiliation: Instituto Oswaldo Cruz/Fiocruz. Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, RJ 21040-900 Brazil.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Arêas
authors.affiliation: Institute for Occupational and Social Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstrasse 30, D-52074 Aachen, Germany. Electronic address: nataliaquinete@yahoo.com.br.
authors.forename: Natalia
authors.initials: N
authors.lastname: Quinete
authors.affiliation: Systems Ecology, Leibniz Center for Tropical Marine Ecology (ZMT), Fahrenheitstrasse 6, 28359 Bremen, Germany.
authors.forename: Jailson F
authors.initials: JF
authors.lastname: de Moura
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (USP), Praça do Oceanográfico 191, Butantã, São Paulo, SP 05508-900, Brazil.
authors.forename: Satie
authors.initials: S
authors.lastname: Taniguchi
authors.affiliation: Instituto Oceanográfico, Universidade de São Paulo (USP), Praça do Oceanográfico 191, Butantã, São Paulo, SP 05508-900, Brazil.
authors.forename: Rosalinda
authors.initials: R
authors.lastname: Montone
authors.affiliation: Instituto Oswaldo Cruz/Fiocruz. Av. Brasil, 4.365, Manguinhos, Rio de Janeiro, RJ 21040-900 Brazil.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Siciliano
authors.affiliation: Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente, 225, Gávea - Rio de Janeiro, RJ 22453-900, Brazil.
authors.forename: Isabel
authors.initials: I
authors.lastname: Moreira
mesh_terms: D000818:Animals; D001267:Atlantic Ocean; D001938:Brazil; D004289:Dolphins; D056727:Endangered Species; D004784:Environmental Monitoring; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D008099:Liver / Q000737:chemistry*; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls
keywords: Brazil; Franciscana dolphin; GC-ECNI-MS; Polybrominated diphenylethers; Polychlorinated biphenyls; Rio de Janeiro