Persistent organic pollutants in two reservoirs along the Paraíba do Sul-Guandu River system, Rio de Janeiro, Brazil

Química Nova

Brito, Elcia Margareth Souza¹  Malm, Olaf¹  Torres, João Paulo Machado¹  Universidade Federal do Rio Janeiro, Rio de Janeiro¹  Vieira, Elisa Diniz Reis¹ 

关键词: organochlorine compounds;    polychlorinated biphenyls;    polycyclic aromatic hydrocarbons.;   

DOI  :  10.1590/S0100-40422005000600002

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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 Socs were polychlorinated biphenyls, 29% dichlorodiphenyltrichloroethane (DDT), 18% Drins, and 5% other pesticides (HCB, Heptachlor, Heptachlor-epoxide, g-HCH and a-Endosulfan). We observed lower levels of SPAH 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.).

【 授权许可】

Unknown