GROUNDWATER CONTAMINATION RISK IN URBAN WATERSHED

Authors

DOI:

https://doi.org/10.4215/rm2020.e19013

Keywords:

Vulnerabilidade aquífera, Conservação e proteção das águas, Águas Urbanas, Aquíferos urbanos

Abstract

Groundwater contamination cause different risks to society, promoting rise of the disease’s cases, in addition to reduce the hydric disponible and to degrade the aquifers, that are strategic reservoir to hydric sustainability of society. Therefore, this study was aimed to applies the groundwater contamination risk index – IRCAS, identifying they efficiency in indication/prediction of water contamination in a urban watershed on Fortaleza City/Brazil. For this, we applied the vulnerability aquifer model GOD to set natural susceptibility and to match environment sanitation index – ISA for to produce the IRCAS. For identify the efficiency this model, we accomplish 2 field campaign, one at the end of the rainy season (July), and other in dry season (November), to analyzed physics and chemistry parameters of groundwater collected of the wells. The major contamination was caused to nitrate, that presented 53 and 46% of the sample out of potability standard on rainy and dry period, respectively. The variance analyses – ANOVA report model efficiency of 61 and 54% of explication of the nitrate contamination variance for on rainy and dry period, respectively.

Keywords: Aquifer vulnerability, Water protection and conservation, Urban waters, Urban aquifer.

Author Biography

  • Filipe da Silva Peixoto, Universidade do Estado do Rio Grande do Norte (UERN), Mossoró (RN), Brasil.

    Doutor em Geologia pela UFC (2019). Atualmente é professor do Departamento de Geografia da Universidade do Estado do Rio Grande do Norte - UERN e professor permanente do Programa de Pós-Graduação em Geografia da UERN. Tem experiência na área de Geografia Física, com ênfase em Geoprocessamento e Hidrogeografia, atuando principalmente nos seguintes temas: gestão de recursos hídricos no semiárido, águas urbanas, geoprocessamento aplicado aos recursos hídricos e a qualidade sanitária.

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Published

2020-06-24

Issue

Vol. 19 (2020)

Section

Artigos

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