AVALIAÇÃO DO PERIGO DE CONTAMINAÇÃO DOS AQUÍFEROS PRÓXIMOS AOS CEMITÉRIOS DE TERESINA, PIAUÍ
AVALIAÇÃO DO PERIGO DE CONTAMINAÇÃO DOS AQUÍFEROS PRÓXIMOS AOS CEMITÉRIOS DE TERESINA, PIAUÍ
-
DOI: https://doi.org/10.22533/at.ed.6472417103
-
Palavras-chave: Contaminação de aquíferos; Águas subterrâneas; GOD; POSH.
-
Keywords: Aquifer contamination, Groundwater, GOD, POSH
-
Abstract: The contamination of aquifers located in densely urbanized areas is a growing concern, as groundwater can be an essential source of water supply for various uses, including human consumption. This article aims to assess the contamination risk of aquifers adjacent to public cemeteries in the city of Teresina, Piauí. The methodology used for this assessment is based on two widely recognized methods in the water resource management literature: the GOD vulnerability method and the POSH contaminant load analysis method. The GOD method, developed by Foster and Hirata (1988), was used to assess the vulnerability of aquifers to contamination. The study considers hydrogeological characteristics and soil properties to estimate the susceptibility of aquifers to contaminant infiltration. The POSH method, proposed by Foster et al. (2006), was employed to assess the contaminant load present in the subsoil, considering factors such as the chemical composition of the leachate produced. For this assessment, data from the vulnerability mapping in the city of Teresina conducted by Lira Filho, M. A. S. et al. (2023) were used. Based on this information, it was possible to identify the aquifer vulnerability pattern in the city of Teresina. After characterizing the contamination load of cemeteries located in the urban area of the city using the POSH method, the contamination risk in the delimited area was assessed. The results indicated a low risk of aquifer contamination, suggesting that the low aquifer vulnerability is a determining factor in achieving this outcome. However, further studies are recommended to investigate other potentially present contaminants, such as heavy metals and formaldehyde, for a more comprehensive risk assessment.
- Girleiane Santos de Sá
- GIRLEIANE SANTOS DE SA
- Marco Aurélio da Silva Lira Filho
- Mauro César de Brito Sousa