2025-02-182025-02-182022-05-02https://repositorio.ifal.edu.br/handle/123456789/864The Lagoon Manguaba de Marechal Deodoro, is of great economic value for many families from Deodoro, as it produces a wide variety of aquatic organisms, such as: fish, shellfish and molluscs, which are a source of income and also food for the families of fishermen in the region who depend solely and exclusively on fishing, and have no other means to guarantee the sustenance and survival of their family members. The lagoon has a scenario of exclusive scenic beauty, where we can see on one side a beautiful green landscape composed of a beautiful and extensive mangrove and on the other side a beautiful lagoon edge, with a sports and leisure area, restaurants and snack bars serving dishes of typical foods, made with fish from the Manguaba lagoon, attracting tourists and visitors from various places. These restaurants generate direct and indirect jobs, however, they contribute negatively to the pollution of the lagoon, dumping their contaminating effluents directly into the water, without any form of treatment. There are several sewage and/or filthy tongues along the lagoon edge, being released directly into the Manguaba lagoon, not only from restaurants and bars, but also from other neighborhoods in the municipality. The presence of oil in the discharge of these effluents is notorious. It is also noted the disposal of household waste in the water bodies of the Laguna, such as: Tires, iron, wood, plastic (food packaging and bags), glass (beverage bottles and shards) that are discarded by the population that lives there. passes, or often, through the action of the wind. The objective of this work is this, to analyze, using instruments accessible to the population, environmental parameters that indicate water quality, trying to relate variations in these parameters to sudden changes in water quality in Laguna Manguaba, on the edge of the municipality of Marechal Deodoro.ptQualidade da águaLagunaLaguna ManguabaPoluiçãoAnalise da águaParâmetros ambientaisEsgotosWater qualityPollutionWater analysisenvironmental parametersSewageTrabalho de Conclusão de CursoENGENHARIAS