Organic micropollutants on river sediments from Rio de Janeiro State, Southeast Brazil

Cadernos de Saúde Pública

João Paulo Machado Torres²  Olaf Malm²  Elisa Diniz Reis Vieira²  Jan Japenga¹  Gerwin Ferdinand Koopmans¹ 

[1] ,Universidade Federal do Rio de Janeiro Centro de Ciências da Saúde Instituto de Biofísica Carlos Chagas FilhoRio de Janeiro RJ ,Brasil

关键词: Polychlorinated Biphenyls;    Organochlorine Insecticides;    Polycyclic Aromatic Hydrocarbons;    Sediments;    Endocrine Disruptors;    Bifenilos Policlorados;    Inseticidas Organoclorados;    Hidrocarbonetos Policíclicos Aromáticos;    Sedimentos;    Desreguladores Endócrinos;   

DOI  :  10.1590/S0102-311X2002000200012

来源: SciELO

【 摘 要 】

The paper is a contribution for the knowledge upon concentrations and fate of different kinds of organic micropollutants in Tropical River system from a very industrialized region in Brazil. The presented data was obtained during three years of an International Research Project between Brazilian and Dutch institutions. The sediments were sampled at the Paraiba do Sul-Guandu river watershed, the most important watercourse of Rio de Janeiro state, where up 90 % of the population depends on its water for domestic uses. After extraction with non-polar solvents in a hot sohxlet device and clean up using chromatographic columns, three classes of organic micropollutants were analyzed: organochlorine insecticides (OCs), polychlorinated biphenyls (PCBs) and polynuclear aromatic hydrocarbons (PAHs). The organochlorines, including the PCBs were scarcely present in the collected samples probably reflecting the restrictions of use of this class of compounds in the Brazilian market. However, the PAHs levels were high at the vicinity of a huge steelworks located in the city of Volta Redonda. This contamination is probably due to the massive use of coal in the above-cited metallurgical plant.

【 授权许可】

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