Vulnerabilidade de aquíferos e urbanização no entorno de cemitérios: o caso da cidade de Valparaíso de Goiás
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2020-02-27
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Universidade Federal de Goiás
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This study evaluated the influence of decomposition of deposited bodies in Jardim Metropolitano Cemetery, Valparaiso, Goiás, and the consequent formation of necrochorume on groundwater and local soils. Data collection took place from 2007 to 2018. During this follow-up period three monitoring wells were monitored within the cemetery area whose parameters alkalinity, pH, dissolved oxygen, conductivity, color, hardness, turbidity, iron content, total dissolved solids, chemical oxygen demand, biological oxygen demand and groundwater microbiological. According to the obtained results, the median values of the physicochemical parameters are not above the allowed by the Brazilian legislation. Redundancy Analysis (RDA), employed by the CANOCO software, made it possible to identify the most relevant physicochemical parameters at the collection sites and in the years 2007 to 2018, allowing to differentiate and classify the water samples. Thus, it was possible to correlate the results of chemical, chemical and microbiological, and identify the sites most conducive to contamination, concluding that there was influence of the cemetery on changes in the potability indices of aquifers, but within the normative limits used. This is due to the region's soil, which being a later tropical soil, is able to purify or necrochorume before reaching the aquifer. Pollution in artesian wells used by the population near the cemetery was found to be caused by poor conditioning and dumping of waste and effluents.
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SABA, E. D. Vulnerabilidade de aquíferos e urbanização no entorno de cemitérios: o caso da cidade de Valparaíso de Goiás. 2020. 247 f. Tese (Doutorado em Química) - Universidade Federal de Goiás, Goiânia, 2020.