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BIBTEX RIS

Perfil espacial e temporal de poluentes nas águas da represa municipal de São José do Rio Preto, São Paulo, Brasil

2009; Brazilian Chemical Society; Volume: 32; Issue: 6 Linguagem: Inglês

10.1590/s0100-40422009000600014

ISSN

1678-7064

Autores

Camila Almeida Melo, Altair B. Moreira, Márcia Cristina Bisinoti,

Tópico(s)

Water Quality and Pollution Assessment

Resumo

In this manuscript, seasonal and spatial trends of water collected from two sampling places in the Preto River in the Turvo-Grande watershed were evaluated.Water samples were collected during June/07 to July/08 and parameters sulphate, total organic carbon, ammonia, conductivity, dissolved oxygen, temperature, dissolved total solids and nitrate were quantified.Seasonal trend indicated sanitary effluents as a point source of contamination in both sampling points.Vertical trends demonstrated that the Municipal Dam was not stratified and received a diffuse source of pollutants from flooding and agriculture runoffs.It was also verified that there is relatively fast ammonia consumption kinetics having a half-life time of 1.43 h which can explain the low ammonia concentrations found in these aquatic bodies.

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