An assessment of PCB and PBDE contamination in two tropical dolphin species from the Southeastern Brazilian coast.
PCBs and PBDEs were determined in two dolphin species, Sotalia guianensis and Steno bredanensis, from an upwelling system off the Central-northern coast of Rio de Janeiro, Brazil. PCB levels varied from 0.040 to 0.75 μg g(-1) lw in muscles and from 0.022 to 1.32 μg g(-1)lw in liver samples from S. guianensis. In S. bredanensis, values varied from 0.085 to 11.3 μg g(-1) lw in muscles and from 0.024 to 18.6 μg g(-1) lw in livers. PCB-138, -153 and -180 were the major PCB congeners detected in both species, while BDE-47 was the predominant PBDE congener found in both species. Higher concentrations in S. bredanensis were possibly related to the different feeding habits for both delphinid species. These results contribute to extend the database on organic contamination in cetaceans from the southern hemisphere, understanding their distribution and environmental fate in Southeastern Brazil.
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.
Ricardo
R
Lavandier
Instituto Oswaldo Cruz/Fiocruz, Av. Brasil 4.365, Manguinhos, Rio de Janeiro, RJ 21040-900, Brazil.
Jennifer
J
Arêas
Instituto Oceanográfico, Universidade de São Paulo (USP), Praça do Oceanográfico 191, Butantã, São Paulo, SP 05508-900, Brazil.
Patrick S
PS
Dias
Instituto Oceanográfico, Universidade de São Paulo (USP), Praça do Oceanográfico 191, Butantã, São Paulo, SP 05508-900, Brazil.
Satie
S
Taniguchi
Instituto Oceanográfico, Universidade de São Paulo (USP), Praça do Oceanográfico 191, Butantã, São Paulo, SP 05508-900, Brazil.
Rosalinda
R
Montone
Systems Ecology, Leibniz Center for Tropical Marine Ecology (ZMT), Fahrenheitstrasse 6, 28359, Bremen, Germany.
Jailson Fulgencio
JF
de Moura
Institute for Occupational and Social Medicine, Medical Faculty, RWTH Aachen University, Pauwelsstrasse 30, D-52074 Aachen, Germany. Electronic address: nataliaquinete@yahoo.com.br.
Natalia
N
Quinete
Instituto Oswaldo Cruz/Fiocruz, Av. Brasil 4.365, Manguinhos, Rio de Janeiro, RJ 21040-900, Brazil.
Salvatore
S
Siciliano
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.
Isabel
I
Moreira
D000818:Animals; D001938:Brazil; D004289:Dolphins / Q000378:metabolism*; D004784:Environmental Monitoring / Q000379:methods*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis* / Q000378:metabolism; D008099:Liver / Q000737:chemistry / Q000378:metabolism; D009132:Muscles / Q000737:chemistry / Q000378:metabolism; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism
D055768:Halogenated Diphenyl Ethers; D014874:Water Pollutants, Chemical; D011078:Polychlorinated Biphenyls
Brazil; Cetaceans; GC-ECNI-MS; PBDEs; PCBs