Estudos preliminares de contaminação de água por cemitérios: estudo de caso de entorno do cemitério São Pedro - Londrina-Pr

Abstract

The cemeteries can be seen as a particular species of landfill and have a high risk of contamination of groundwater and surface water by bacterias and viruses that during the processes of decomposition of bodies proliferate and release chemical substances harmful to health of living organisms. The municipality of Londrina-PR is located in the north of the State of Paraná, and suffered an accelerated urbanization process, today there are eight graveyards in its urban area, which causes a risk of contamination of groundwater exploited to supply, and can bring harm to the health of the entire population that inhabits and occupies the city's urban area and makes use of this resource. The present work aims to investigate the quality of water in the urban area of the municipality in which it is inserted the São Pedro cemetery, to verify whether this venture is causing contamination of the micro watershed where it is inserted. Water samples were collected for determination of physico-chemical parameters of turbidity, electrical conductivity, nitrate, ammonia nitrogen, pH and dissolved oxygen and microbiological tests performed the count of the species Escherichia coli. Analysis were made of the local geographic aspects through altimetry maps and declivity, and their influences on cemetery contamination and through the record of deep tube wells granted and registered in the SIAGAS there were researches about the water quality around the cemetery and the central region of Londrina. Through the collections and analyses, it has been proven that the groundwater in the area around the São Pedro cemetery suffer direct influences of degradation of the present bodies. It was possible to prove that cemeteries, even though ancient, present the impacts of contamination in the water, be it surface or underground. It is also the extreme importance of the monitoring of impacts caused by such developments, to avoid contamination.