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Qualité de l'eau éthiopienne en bouteille commercialisée à Hawassa
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ISBN10: 6209528511
ISBN13: 9786209528514
Publisher: Editions Notre Savoir
Published: Jan 30 2026
Pages: 64
Weight: 0.22
Height: 0.15 Width: 6.00 Depth: 9.00
Language: French
ISBN13: 9786209528514
Publisher: Editions Notre Savoir
Published: Jan 30 2026
Pages: 64
Weight: 0.22
Height: 0.15 Width: 6.00 Depth: 9.00
Language: French
L'accès à une eau potable sûre est essentiel pour la santé humaine. Une étude transversale a été menée afin d'évaluer la qualité bactériologique et physico-chimique de six marques d'eau en bouteille commercialisées à Hawassa, en Éthiopie. Au total, 105 échantillons ont été prélevés dans des usines d'embouteillage, chez des grossistes et des détaillants, puis analysés pour déterminer la teneur en coliformes totaux (CT), en coliformes thermotolérants (CTT), en E. coli, le nombre de bactéries hétérotrophes (HPC) et les paramètres physico-chimiques standard. L'analyse bactériologique a révélé que l'eau brute des entreprises A, C et F présentait une contamination par les CT et les CTT de 80 à 100 %. Dans l'ensemble, 32,2 % et 8,9 % des échantillons d'eau en bouteille étaient positifs pour les CT et les CTT, respectivement, tandis qu'aucun ne contenait d'E. coli. Les résultats du HPC ont indiqué que seulement 38,3 % des échantillons répondaient aux normes de la FDA, avec des comptages allant de 23 à 21 363 ufc/mL (moyenne ET: 2 904 4 634 ufc/mL). Les paramètres physico-chimiques se situaient dans les limites autorisées, bien que l'alcalinité totale, le TDS et le pH variaient considérablement d'une marque à l'autre (p
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