Avaliação do potencial de poluição da água decorrente da atividade do cemitério por necrochorume na cidade de Tucuruí, Sudeste do estado do Pará

Abstract

In this work 12 water samples collected in 6 points were analyzed to find out if the Jardim da Saudade Cemetery, located in the city of Tucuruí, would be polluting the springs by necro-leachate. For this purpose, tools that encompass hydrogeology, structural geology and geomorphology were used to help throughout the research. The geomorphological framework was classified in Structural Dissecting Modeling (SD) and Accumulation Modeling (Ac). The geological framework is formed by rocks of the Tucuruí Formation and some of its characteristics were found partially preserved in a soil profile around the cemetery. The Tucuruí Formation is defined as a sequence of metagraywackes overlapped by a bundle of metabasalts and along the Santos stream there occurs most of the basalts identified in the field, these basalts having fractures with directions of 110 Az, 65 Az, 10 Az e 170 Az. Subsequently, the analyzes of each parameter of the samples collected at the points near the graveyard region, can have a satisfactory result of the water quality. Associated with surface and underground flow analysis, the relation between them and the hydrodynamic pattern governed by their similarities of geological and hydrogeological character was obtained, as well as a socioeconomic evaluation to finalize the work with a socio-environmental contribution, which highlights the importance of this work for the community, solving doubts regarding the possible contamination by necro-leachate of the springs that are located near the cemetery and that are used by the system of public water supply