Avaliação da contaminação de águas subterrâneas por cemitérios: estudo de caso de Tabuleiro - MG / Evaluation of contamination of groundwater by graveyards: a case study Tabuleiro - MG

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

11/07/2008

RESUMO

This work presents the results of a case study carried out at Tabuleiro graveyard, located at Minas Gerais State, southeast Brazil. The graveyard is located at Formoso river flood plain. Several chemical and physical analyses were done at underground water collected at monitoring wells installed inside the graveyard and on its surrounds. Monitoring wells were positioned so possible aquifer contamination from the graveyard could be detected. The following parameters were analyzed: nitrate, ammoniated nitrogen, BOD, QOD, pH, electrical conductivity, temperature, total phosphorus, calcium, magnesium, sodium, total coliforms and E. coli. Water sampling was made monthly from august, 2007 to march, 2008, resulting in seven different samples from each well. High electrical conductivity values – typically found in saline or residual water were found at well number 5, located below the cemetery on underground flow direction. These values are associated with high values for ammoniated nitrogen, calcium, magnesium, sodium and E. coli. As a conclusion, graveyards can behavior as a source of pollution/contamination of underground water by flowing of burial leakage.

ASSUNTO(S)

impactos ambientais cemitérios contaminação de água geotecnica environmental impacts graveyards water contamination

ACESSO AO ARTIGO

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