Persistent organic pollutants in two reservoirs along the Paraíba do Sul-Guandu River system, Rio de Janeiro, Brazil
AUTOR(ES)
Brito, Elcia Margareth Souza, Vieira, Elisa Diniz Reis, Torres, João Paulo Machado, Malm, Olaf
FONTE
Química Nova
DATA DE PUBLICAÇÃO
2005-12
RESUMO
Sediment contamination is evaluated by determining organic micropollutants (organochlorine compounds - OCs and polycyclic aromatic hydrocarbons - PAHs) in two important Brazilian water reservoirs. Trace levels of OCs were observed in the Santana reservoir (44.8 ng g-1 d.w. of p,p'-DDT), while in the Funil reservoir the levels were below detection level. Forty-eight percent of the found sigmaocs were polychlorinated biphenyls, 29% dichlorodiphenyltrichloroethane (DDT), 18% Drins, and 5% other pesticides (HCB, Heptachlor, Heptachlor-epoxide, gamma-HCH and a-Endosulfan). We observed lower levels of sigmaPAH in the Funil reservoir (1 to 275 ng g-1d.w.) than in the Santana reservoir (2.2 to 26.7 µg g-1 d.w.).
Documentos Relacionados
- Distribution and abundance of Cladocera (Branchiopoda) in the Paraíba do Sul River estuary, Rio de Janeiro, Brazil
- Biodiversidade dos Monogenéticos (Platyhelminthes: Monogenea) parasitos de Peixes do Rio Guandu, Estado do Rio de Janeiro, Brasil
- Distribution of indoor air pollutants in downtown Rio de Janeiro, Brazil
- Bioavailability of pollutants in bacterial communities of Rodrigo de Freitas Lagoon, Rio de Janeiro, Brazil
- Water quality monitoring system approach to support Guapi-Macacu River basin management, Rio de Janeiro, Brazil.