Microbiological contamination in drinking water in rural locations in the municipality of Ahome, Sinaloa, Mexico
Abstract
The rural populations of the municipality of Ahome, Sinaloa, have a certain prevalence of diseases related to gastrointestinal problems, which is why this study was carried out to determine the microbiological quality of drinking water, as one of the possible factors that spread pathogens. The sanitary quality of drinking water from the tap was evaluated by detecting indicator microorganisms (thermotolerant fecal coliforms) and chlorine concentration in 15 rural communities in the municipality of Ahome, Sinaloa. Thermotolerant fecal coliform bacteria were isolated and detected by the membrane filtration method. 80% of rural communities showed positive results for thermotolerant fecal coliforms (1- 250 CFU mL-1) in patio tap water samples, although it was not possible to identify Escherichia coli. Based on the results, the need to have more efficient water quality control and sanitation mechanisms in the rural areas considered in this study is evident, since the chlorination process is not effective and, therefore, in It is necessary to intensify surveillance in water distribution networks to reduce the incidence of diseases related to pathogens in water for human consumption.
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