Avaliação dos parâmetros físicos, químicos e índice de qualidade da água no rio saúde, em razão da precipitação (maio a dezembro de 2004): estudo de caso.

Abstract

This work was developed with the objective of evaluating the variation of the index of quality of the water in the river Saúde North coast of Alagoas, relating parameters of quality of the water as well as the own index, with the rainy and dry periods defined through climatological studies. The period of collections was understood among the months from May to December of 2004, being the months from May to August, defined as being the rainy period, and from September to December the dry season. The chemical parameters of the water were collected: Dissolved oxygen, pH, Turbidez, Salinity, Material in Suspension, Chlorophyll, Electric Conductivity, Nitrate, Nitrite, Temperature and Transparency of the water. Also the precipitation was collected in the station Peixe Boi located in project Peixe Boi headquarters, in the North coast of Alagoas. The found results had shown low values of water quality, which is due the lack of biological parameters in the calculation of the index. The index used for the calculation was Bascaràn, the variation of that index was detected in relation to the dry and rainy periods tends a light increase in the rainy period and stability in the dry period. Key Words: Meteorology, Quality of the water, Hydrochemistry