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Qualidade da água engarrafada da Etiópia comercializada em Hawassa
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ISBN10: 6209536190
ISBN13: 9786209536199
Publisher: Edicoes Nosso Conhecimento
Published: Jan 30 2026
Pages: 60
Weight: 0.21
Height: 0.14 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786209536199
Publisher: Edicoes Nosso Conhecimento
Published: Jan 30 2026
Pages: 60
Weight: 0.21
Height: 0.14 Width: 6.00 Depth: 9.00
Language: Portuguese
O acesso à água potável é essencial para a saúde humana. Foi realizado um estudo transversal para avaliar a qualidade bacteriológica e fÃsico-quÃmica de seis marcas de água engarrafada comercializadas em Hawassa, Etiópia. Um total de 105 amostras foram coletadas de fábricas de engarrafamento, atacadistas e varejistas e analisadas para coliformes totais (TC), coliformes termotolerantes (TTC), E. coli, contagem de placas heterotróficas (HPC) e parâmetros fÃsico-quÃmicos padrão. A análise bacteriológica revelou que a água bruta das empresas A, C e F apresentava 80-100% de contaminação por TC e TTC. No geral, 32,2% e 8,9% das amostras de água engarrafada foram positivas para TC e TTC, respetivamente, enquanto nenhuma continha E. coli. Os resultados da HPC indicaram que apenas 38,3% das amostras cumpriam as normas da FDA, com contagens que variavam entre 23 e 21 363 ufc/mL (média DP: 2904 4634 ufc/mL). Os parâmetros fÃsico-quÃmicos estavam dentro dos limites permitidos, embora a alcalinidade total, o TDS e o pH variassem significativamente entre as marcas (p
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