Análise físico-química e microbiológica do Rio Coruripe no litoral sul de Alagoas

Abstract

Water is a vital resource for the existence of life on planet Earth. Without her, life would not even have begun, at least as it is known. In addition, it integrates numerous natural and anthropic cycles, being fundamental for the generation of food and energy in the same way as it is for the respiration of plants. However, only 3% of the water is fresh, and an even smaller percentage is available for consumption, and irresponsible and inefficient use, accompanied by waste and contamination, already show a scenario of scarcity. Part of what fits into the context of contamination and irresponsible use can be explained by the irregular release of effluents in natura into water bodies, which also serve for recreation and consumption. The objective of this research was to evaluate a stretch of the Coruripe River, located in Lagoa do Pau, a village belonging to the city of Coruripe/AL, analyzing physical-chemical and microbiological parameters, aiming to qualify the stretch within what is described in the current legislation. Laboratory analyzes were carried out with the help of the Instituto do Meio Ambiente for microbiological parameters, and with a portable kit for physical-chemical parameters. The result showed pH, chloride, free chlorine and hardness were within the determined values, with only change in turbidity. However, changes in turbidity alone do not indicate impairment of water quality. Even with human use for recreation and hygiene, and for animal bathing, the stretch is within the standards established by CONAMA Resolution No. animal with the site do not cause significant changes in water quality parameters.