Monitoramento e Mapeamento das Águas Subterrâneas de Abastecimento Urbano do Município de Mossoró-RN (Monitoring and mapping of underground waters of urban supply in the municipality of Mossoró-RN)
DOI:
https://doi.org/10.26848/rbgf.v9.6.p1825-1835Keywords:
Sistema de Informações Geográficas – SIG, Qualidade de água, Parâmetros físico-químicosAbstract
Os recursos hídricos são elementos essenciais para a vida e os processos modificadores do ambiente, por isso possuir conhecimento da atual situação pode garantir uma gestão eficiente objetivando o uso mais sustentável, assim não comprometendo as atuais e futuras gerações no tocante a disponibilidade e qualidade hídrica. As águas subterrâneas são uma alternativa em regiões áridas e semiáridas como no nordeste brasileiro, para o abastecimento humano, já que as taxas de pluviometria são consideravelmente baixas. A cidade de Mossoró nos últimos anos passa por uma expansão urbana e um crescimento populacional, aumentando a demanda por água de boa qualidade para o abastecimento, por isso a presente pesquisa teve como objetivo a análise da qualidade da água subterrânea distribuída à população da área urbana de Mossoró-RN, já que estudos dessa natureza são bastante escassos na região. As análises das amostras foram realizadas no laboratório da CAERN, companhia responsável pela distribuição de água no estado do Rio Grande do Norte. E depois os dados foram analisados por meio da estatística descritiva e interpolação de cada variável para a elaboração de mapas temáticos. As águas subterrâneas de um modo geral como é de se esperar não apresentam restrições quanto as suas propriedades físicas, principalmente por se tratar de um aquífero poroso e relativamente profundo como o aquífero Açu. Um Sistema de Informações Geográficas - SIG pode melhorar a interpretação das análises do comportamento da qualidade da água dos poços, além de diminuir o tempo gasto e espaço de armazenamento.
A B S T R A C T
Water resources are essential for life and environmental modifiers processes, so the knowledge of the current situation can ensure efficient management aiming at more sustainable use, thus not affecting the current and future generations regarding the availability and water quality. Groundwater is an alternative in arid and semi-arid regions such as in northeastern of Brazil, for human consumption, since the pluviometry rates are considerably lower. The city of Mossoro in recent years goes through an urban expansion and population growth, increasing the demand for good quality water supplies, so this study aimed to analyze the groundwater quality distributed to the population of the urban area of Mossoro-RN, whereas such studies are rather scarce in the region. The analyzes of the samples were performed in the laboratory of CAERN, the water company that is responsible for distributing water in the state of Rio Grande do Norte. And then the data were analyzed using descriptive statistics and interpolation of each variable for the elaboration of thematic maps. Groundwater, generally speaking, as is to be expected shows no restrictions about their physical properties, mainly because it is a porous aquifer and relatively deep as the Açu aquifer. A Geographic Information System - GIS can improve the understanding of the analysis of the behavior of the quality of the water from wells, and reduce the time spent and storage space.
Keywords: Geographic Information System - GIS; water quality; physico-chemical parameters
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Copyright (c) 2016 Herminio Sabino de Oliveira Junior, Paulo Cesar Moura da Silva, Clara Líva Câmara e Silva

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