Abstract
This work deals with the microbiological study along the water chain in Belbedji, a local government in the northwest of the Zinder region in the Republic of Niger. For this study, two (2) standpipes, thirty (30) families and ninety (90) samples were selected in order to follow the variation of water microbiological quality. For that the parameters studied are the total coliforms, the fecal coliforms and the E. coli. From these parameters we calculated the indication or the index of the microbiological quality (MQI) by the method of Bovesse and Depelchin, 1980. The variations of the fecal contamination at the level of the families in the different phases are represented on maps. At the water marker, 100% of families have good microbiological quality. After the transport of water, on 3.33% of the families the quality of the water deteriorated. After water storage, 16.66% of families had deteriorated water quality, with the passage of fecal contamination from zero to low on 13.33% of families, and fecal contamination from zero to moderate 3.33% of families.
Highlights
IntroductionAccess to safe drinking water is at the core of most public health problems in developing countries [2]
Water is a rare resource common to all humanity [1]
The purpose of this study is to determine the bacteriological quality of water by the study of the Microbiological Quality Index (MQI) in order to inform on the one hand the riparian populations that use it and on the other hand the Direction Belbedji Hydraulic and Sanitation Department (DDHA/B) and the Zinder Regional Hydraulic and Sanitation Directorate (DRHA/Z) on the bacteriological status of these waters, the sources of Contamination and the measures to be taken
Summary
Access to safe drinking water is at the core of most public health problems in developing countries [2]. S. Issa et al 788 are dying, so that the microbiological quality of water remains the number one public health concern worldwide [3] [4] [5]. Bacterial contamination in water is a natural phenomenon, in which humans act as primary contaminants, and as secondary receptors for bacteria present in the environment [3]. Among the bacteria present in the waters, the groups of total germs, total coliforms and E. coli are analyzed. Their dynamics were followed on the water standpipe and on the entire water chain of the thirty (30) sectioned families
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