Vulnerabilidade natural e risco à contaminação do aquífero livre da área urbana de Rio Claro - SP

• Autor(a) principal: Bacaro, Fernanda [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/132464; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2016-01-11/000857134.pdf
• topic: Águas subterrâneas; Aquiferos - Contaminação; Avaliação de riscos ambientais; Poluição; Rio Claro (SP)

The study of vulnerability risk of aquifers is highly relevant, given the importance of them for various uses, and, mostly, public supply, once 51% of Brazil's water comes from underground source. For this study in the urban area of the city of Rio Claro, first, some parameters were determined, such as: (i) the depth of the aquifer; (Ii) type of occurrence of the aquifer and (iii) geological characteristics. So it was established the degree of natural vulnerability of the aquifer by GOD method, generating a georeferenced map of the topic at hand, using ArcGIS software. With vulnerability mapping, it was possible to introduce contaminant sources, such as landfills, cemeteries and gas stations to determine the risks of the aquifer before these contaminants, creating another map. The resulting map for the vulnerability showed levels of high to extreme in the urban area; when potential contaminant sources are added to the area, it showed high levels of risk as well, as seen in another map. Therefore, some careful acts should be taken when installing potential contaminant activities in this study area