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

Química Nova

Camila De Almeida Melo¹  Altair B. Moreira¹  Márcia Cristina Bisinoti¹ 

[1] ,Universidade Estadual Paulista Júlio de Mesquita Filho Instituto de Biociências, Letras e Ciências Exatas Departamento de Química e Ciências AmbientaisSão José do Rio Preto SP ,Brasil

关键词: Preto river;    seasonal and spatial trends;    pollutants;   

DOI  :  10.1590/S0100-40422009000600014

来源: SciELO

【 摘 要 】

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.

【 授权许可】

CC BY-NC   
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