Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Seasonal and spatial trend of pollutants in the waters of the São José do Rio Preto municipal dam, São Paulo state, Brazil

Full text
Author(s):
Camila de Almeida Melo [1] ; Altair B. Moreira [2] ; Márcia Cristina Bisinoti [3]
Total Authors: 3
Affiliation:
[1] Universidade Estadual Paulista Júlio de Mesquita Filho. Instituto de Biociências, Letras e Ciências Exatas. Departamento de Química e Ciências Ambientais - Brasil
[2] Universidade Estadual Paulista Júlio de Mesquita Filho. Instituto de Biociências, Letras e Ciências Exatas. Departamento de Química e Ciências Ambientais - Brasil
[3] Universidade Estadual Paulista Júlio de Mesquita Filho. Instituto de Biociências, Letras e Ciências Exatas. Departamento de Química e Ciências Ambientais - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Química Nova; v. 32, n. 6, p. 1436-1441, 2009-00-00.
Abstract

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. (AU)