GROUNDWATER VULNERABILITY TO CONTAMINATION IN URBAN AREA – GUARATIBA AQUIFER, RJ

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DOI:

https://doi.org/10.21680/2447-3359.2020v6n2ID21095

Abstract

The DRASTIC method a widely applied method for assessing the intrinsic vulnerability of an aquifer based on the parameters: depth, recharge, aquifer type, topography, impact on vadose zone, soil and hydraulic conductivity. However, studies indicate that these parameters alone are insufficient to characterize an aquifer inserted in an urban area. Thus, DRASTICA method was developed with the addition of the anthropogenic impact parameter. This research work presents the study of vulnerability of the Guaratiba aquifer, Rio de Janeiro city, based on the DRASTIC method and its adaptation DRASTICA. The DRASTIC vulnerability map showed three classes, with a predominance of the lower and middle classes with 0.8% of study area high potential vulnerabilities. The DRASTICA vulnerability map shows the influence of anthropic activities, since the high vulnerability class with 5% of the research area. Thus, in the DRASTICA method, it is observed that the presence of high vulnerability in the highest concentrations of nitrate ions and, moreover, lowest nitrate concentration are not present in this respective class. Therefore, it is concluded that for studies of aquifer vulnerability in urban areas, the DRASTICA method is indicated.

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Author Biographies

Glaucio Silva de Carvalho, Universidade Federal Fluminense - UFF

Possuo graduação em Geologia pela Universidade Federal Rural do Rio de Janeiro (2014). Cursei mestrado em eng. de Biossistemas (UFF), com término em 2019, além de pós-graduação em Tradução em inglês (Estácio-2019). 

Cristiane Nunes Francisco, Universidade Federal Fluminense - UFF

Possui graduação em Bacharelado em Geografia pela Universidade Federal do Rio de Janeiro (1991), graduação em Licenciatura em Geografia pela Universidade Federal do Rio de Janeiro (1987), mestrado em Engenharia de Transportes (Geoprocessamento) pela Universidade de São Paulo (1995) e doutorado em Geociências (Geoquímica) pela Universidade Federal Fluminense (2004). Realizou Pós-Doutoramento em Sensoriamento Remoto pelo INPE (2011). Atualmente é professora associada da Universidade Federal Fluminense. Tem experiência em Geociências, com ênfase na aplicação de Sistemas de Informação Geográfica e Sensoriamento Remoto na análise espacial de áreas protegidas e bacias hidrográficas, no mapeamento do uso e cobertura da terra, no planejamento territorial de municípios. 

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Published

14-10-2020

How to Cite

CARVALHO, Glaucio Silva de; FRANCISCO, Cristiane Nunes. GROUNDWATER VULNERABILITY TO CONTAMINATION IN URBAN AREA – GUARATIBA AQUIFER, RJ. Notheast Geoscience Journal, [S. l.], v. 6, n. 2, p. 186–196, 2020. DOI: 10.21680/2447-3359.2020v6n2ID21095. Disponível em: https://www.periodicos.ufrn.br/revistadoregne/article/view/21095. Acesso em: 12 sep. 2026.

Issue

Vol. 6 No. 2 (2020)

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Artigos

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