Estudo dos contaminantes orgânicos de traço (TrOcs) nas folhas medicinais de Eugenia uniflora L. de áreas urbanas e preservadas
DOI:
https://doi.org/10.33448/rsd-v14i2.48248Palavras-chave:
CG-MS; Poluentes orgânicos; Contaminantes orgânicos de traço; Eugenia uniflora.Resumo
Os poluentes orgânicos representam riscos significativos tanto para a saúde humana quanto para a sustentabilidade ambiental. Esses compostos têm aumentado drasticamente em diversidade e quantidade, infiltrando-se em corpos d'água, ambientes marinhos e organismos vivos. Diversos fatores contribuem para a emissão desses poluentes, como o tráfego rodoviário e as atividades industriais, resultando em variabilidade espaço-temporal. Dentre os poluentes orgânicos, os Contaminantes Orgânicos de Traço (TrOCs), que incluem uma ampla variedade de produtos químicos industriais, resíduos farmacêuticos e pesticidas, vêm ganhando atenção devido aos seus efeitos tóxicos em organismos aquáticos e plantas. Assim, esta investigação teve como objetivo avaliar a ocorrência de TrOCs depositados em folhas de Eugenia uniflora provenientes de áreas urbanas e florestas preservadas ao longo das quatro estações do ano. Uma pesquisa laboratorial, de caráter experimental e quantitativo foi performada. A identificação de contaminantes orgânicos emergentes foi realizada por Cromatografia Gasosa - Espectrometria de Massas (GC-MS) e Cromatografia Gasosa - Detector de Ionização por Chama (GC-FID). Essa análise permitiu a identificação de TrOCs, alguns dos quais estão relacionados a distúrbios endócrinos. Esses contaminantes variaram de acordo com a região e a estação do ano em que as folhas foram coletadas, estando presentes mesmo em plantas cultivadas em florestas preservadas.
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