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Multi-criteria potential groundwater contamination and human activities: Araras watershed, Brazil

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Resumo:ABSTRACT Assessment of groundwater contamination potential using geological, hydrological and hydrogeological attributes, is an efficient mechanism of sub-surface water resources protection and conservation. However, usually this method does not take into consideration the potentially polluting human activities, either in punctual or diffuse sources, or because the relative importance of the attributes are not considered. The paper proposes a multi-criteria approach as a way of solving this gap, reducing subjectivity and considering land use/cover due human actions influence in the process. The study was developed in Araras river watershed (Paraná Basin, Brazil) using rock, groundwater, relief, soils, and land use/land cover classification, employing multi-criteria analysis and data of contamination sources. The potential contamination classification showed the predominance (54% of the area) of very high and high potential, especially due to geological environment conditions (exploitation areas and groundwater recharge of the Itararé Aquifer - clastic sedimentary and free flow). The contaminant sources analyzed are located mainly in higher potential contamination areas.
Autores principais:Piga,Fabíola Geovanna
Outros Autores:Tão,Nícolas Guerra Rodrigues; Ruggiero,Mayara Herrmann; Marquezola,Darlan de Souza; Boina,Welliton Leandro de Oliveira; Costa,Carlos Wilmer; Lollo,José Augusto de; Lorandi,Reinaldo; Melanda,Edson Augusto; Moschini,Luiz Eduardo
Assunto:Groundwater Water quality Water contamination Multi-criteria analysis
Ano:2017
País:Brasil
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:IBICT
Idioma:inglês
Origem:Oasisbr

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