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Evidence of microplastics in groundwater in the municipality of Cuiabá-MT/Brazil
Original title: Evidência de microplásticos em águas subterrâneas do município de Cuiabá-MT/Brasil
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This Brazilian-language study presents evidence of microplastic contamination in groundwater in the city of Cuiaba, Mato Grosso state. It characterizes the types and concentrations of microplastic particles found in subsurface water sources.
O crescimento populacional tem como consequência, a alta demanda e produção de materiais duráveis e não duráveis. Contudo, esses produtos geram uma quantidade significativa de resíduos, que por sua vez, nem sempre são descartados adequadamente, gerando um acúmulo no ambiente, afetando todo o ecossistema, principalmente os corpos hídricos. Estudos sobre a presença de micropartículas plásticas em águas subterrâneas ainda são iniciais, sendo necessária a realização de mais pesquisas, nesse compartimento. Dessa maneira, esse estudo teve como objetivo analisar a presença de microplásticos em águas subterrâneas, do município de Cuiabá-MT. Para tal foi realizado um levantamento sobre a quantidade de poços existentes no município e realizada a coleta aleatória, de amostras de água de 11 poços, para quantificar e qualificar a presença de microplásticos. Os resultados revelaram que no município estão cadastrados 934 poços, sendo que desses, 65 estão na zona rural e 869 estão localizados na área urbana. Dos poços da área urbana, somente 669 encontram-se em funcionamento, sendo que um total de 508 poços são destinados ao uso doméstico e industrial. Foi encontrada em 81,81%, das amostras analisadas, a presença de microplásticos, com predominância de fibras. Em suma, verifica-se a necessidade de monitorar a qualidade da água dos poços profundos do município de Cuiabá-MT, visto que os microplásticos podem ser um indicador de poluição ambiental.
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