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Rev. Salusvita (Online) ; 27(2): 99-118, 2008. mapas, tab, graf
Article in Portuguese | LILACS | ID: lil-562305

ABSTRACT

O objetivo principal do presente trabalho foi estudar o impacto dos metais dissolvidos e em sedimentos no Córrego do Cintra, localizadona cidade de Botucatu-SP, à jusante do Campus da Unesp-SP, Brasil. Os metais potencialmente tóxicos dissolvidos na água foram detectados na maioria dos locais de coleta. Os Pontos de 1 a 7 superaram o limite máximo permitido pelo CONAMA para o Cd (até 0,280 mg.L-1), Fe (5,0 a 47,79 mg.L-1), Ni (0,027 a 0,378 mg.L-1), Zn (<5,0 mg.L-1), Pb (0,033 a 0,072 mg.L-1) e Cu (0,028 a 3,82 mg.L-1). Detectaram- se também as possíveis fontes geradoras pontuais (efl uentetratado e não tratado) e difusas (agroquímicos e resíduos lixiviadosda Rodovia Marechal Rondon) que comprometem signifi cativamentea qualidade da água...


The objective of the present study was to investigate the impact of metals dissolved and in sediments in the Cintra Stream located in Botucatu city, SP, downstream Unesp Campus SP, Brazil. The potentially toxic metal dissolved in the water were detected in mostof the collection places. Points 1 to 7 surpassed the maximum index allowed by Resolution of CONAMA nº 357/2005, for the Cd (until 0,280 mg. L-1), Fe (5,0 to 47,79 mg. L-1), Ni (0,027 to 0,378mg. L-1), Zn (< 5,0 mg. L-1), Pb (0,033 to 0,072 mg. L-1), Cu (0,028 to 3,82 mg. L-1). It was also detected the possible focal generating sources (effl uent treated and not treated) and diffuse (agrochemistry and lixiviated residues of the “Marechal Rondon” high-way) that signifi cantly impairs the water quality...


Subject(s)
Humans , Animals , Male , Female , Biological Availability , Metals/toxicity , Water Pollution, Chemical , Metals/analysis , Metals/adverse effects , Sediments/analysis , Water/analysis
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