PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast
Ricardo Lavandier
Jennifer Arêas
Natalia Quinete
Jailson F. de Moura
Satie Taniguchi
Rosalinda Montone
Salvatore Siciliano
Isabel Moreira
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.
Lavandier R., Arêas J., Quinete N., de Moura J.F., Taniguchi S., Montone R., Siciliano S. and Moreira I. (2016) PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast. 208(Part B): 442-449. 10.1016/j.envpol.2015.10.013
@article{Lavandier2016,
Title = {PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast},
Author = {Lavandier, Ricardo and Arêas, Jennifer and Quinete, Natalia and de Moura, Jailson F. and Taniguchi, Satie and Montone, Rosalinda and Siciliano, Salvatore and Moreira, Isabel},
Editor = {},
Year = {2016},
Pages = {442-449},
Volume = {208},
Doi = {10.1016/j.envpol.2015.10.013},
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.},
}
TY - JOUR
AU - Lavandier, Ricardo
AU - Arêas, Jennifer
AU - Quinete, Natalia
AU - de Moura, Jailson F.
AU - Taniguchi, Satie
AU - Montone, Rosalinda
AU - Siciliano, Salvatore
AU - Moreira, Isabel
TI - PCB and PBDE levels in a highly threatened dolphin species from the Southeastern Brazilian coast
PY - 2016
SP - 442-449
VL - 208
DO - 10.1016/j.envpol.2015.10.013
AB - 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.
ER -
