Evaluation of natural vulnerability to contamination of Serra Geral aquifer system In Paraná – Brazil

Revista Águas Subterrâneas. 2017;31(4):327-337 DOI 10.14295/ras.v31i4.28857

 

Journal Homepage

Journal Title: Revista Águas Subterrâneas

ISSN: 0101-7004 (Print); 2179-9784 (Online)

Publisher: Associação Brasileira de Águas Subterrâneas

Society/Institution: Associação Brasileira de Águas Subterrâneas

LCC Subject Category: Technology: Hydraulic engineering: River, lake, and water-supply engineering (General) | Geography. Anthropology. Recreation: Physical geography

Country of publisher: Brazil

Language of fulltext: English, Portuguese

Full-text formats available: PDF

 

AUTHORS


Vinícius Menezes Borges (Universidade Federal do Rio Grande do Sul)

Gustavo Barbosa Athayde (Universidade Federal do Rio Grande do Sul)

Pedro Antônio Roehe Reginato (Universidade Federal do Rio Grande do Sul)

EDITORIAL INFORMATION

Double blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 20 weeks

 

Abstract | Full Text

Groundwater is an important source for human supply, however, it is more and more exposed to contamination due to urbanization, industrial and agricultural expansion. This paper presents a study in regional scale about the natural vulnerability of groundwater in the Serra Geral Aquifer System in Paraná. DRASTIC and GOD methods with adaptations for fractured aquifers were used and compared through normalization of vulnerability values. The map obtained by DRASTIC method presented the following levels of vulnerability: low (5,01%), moderate (83,13%) and high (11,85%). GOD method presented low (66,21%), moderate (0,67%), high (14,32%) and extreme (18,81) vulnerability. DRASTIC method presented better spatial detail and more intermediate values, while GOD showed abrupt due to the simple parameterization. Although the DRASTIC method presented better results, the choice for a method must be conditioned to the data, human and financial availability.