Please use this identifier to cite or link to this item:
- Toxic heritage: maternal transfer of pyrethroid insecticides and sunscreen agents in dolphins from Brazil
- Universidade Estadual Paulista (UNESP)
- Department of Environmental Chemistry, IDAEA, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
- Projeto Boto Cinza, Sepetiba, Rio de Janeiro, Brazil.
- Associação de Pesquisa e Preservação de Ecossistemas Aquáticos (AQUASIS), Caucaia, Ceará, Brazil.
- Universidade do Estado do Rio de Janeiro (UERJ)
- Universidade Federal do Rio de Janeiro (UFRJ)
- Department of Environmental Chemistry, IDAEA, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain. Electronic address: firstname.lastname@example.org.
- Pyrethroids (PYR) and UV filters (UVF) were investigated in tissues of paired mother-fetus dolphins from Brazilian coast in order to investigate the possibility of maternal transfer of these emerging contaminants. Comparison of PYR and UVF concentrations in maternal and fetal blubber revealed Franciscana transferred efficiently both contaminants to fetuses (F/M > 1) and Guiana dolphin transferred efficiently PYR to fetuses (F/M > 1) different than UVF (F/M < 1). PYR and UVF concentrations in fetuses were the highest-ever reported in biota (up to 6640 and 11,530 ng/g lw, respectively). Muscle was the organ with the highest PYR and UVF concentrations (p < 0.001), suggesting that these two classes of emerging contaminants may have more affinity for proteins than for lipids. The high PYR and UVF concentrations found in fetuses demonstrate these compounds are efficiently transferred through placenta. This study is the first to report maternal transfer of pyrethroids and UV filters in marine mammals.
- Environmental Pollution (barking, Essex : 1987), v. 207, p. 391-402, 2015.
- Elsevier B. V.
- Emerging pesticides
- Lactational uptake
- Transplacental transfer
- Uv filters
- Acesso restrito
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.