Diagnóstico da condição de saneamento e qualidade das águas dos contribuintes do reservatório da Pampulha.

Abstract

The present study considers how the condition of basic sanitation in the big cities influences the water quality of rivers and streams located in urban centers. As a focus of this study, the Pampulha basin was chosen, where its tributaries were divided into eight sub-basins, with the objective of evaluating the sanitary condition of each contributor. During the study, data were collected on the collection of urban solid waste (RSU), domestic sewage collection from the population of each sub-basin, urban drainage service and water supply for human consumption in the sub-basins studied. Through these indices, the Environmental Health Index of each sub-basin and the water quality analyzes of the tributaries of the Pampulha basin, it was possible to identify that there are still areas without the universalization of basic sanitation services and areas that even with the supply of the service have the clandestine disposal of residues and effluents to the water bodies of the studied basin. In addition to the data collected in the analysis, it was noticed the difficulty of the integrated management of water resources in its territorial dimension. The lack of resources, scarce skilled labor and other municipal interests prevents the advancement of services to the entire population, generating not only environmental impacts but also social and health impacts. The barrier imposed by the use and occupation of improper soils in the proximity of streams was also recognized, which should be protected to reduce the impacts of urbanization on the aquatic environment.