RESUMEObjectif : L'objectif de cette étude est de contribuer à une amélioration de la qualité de l'eau des populations dans la Commune de Toffo. The objective of this study is to contribute to improving the water quality of the people in the Municipality of Toffo. Methods and Results:The methodology is based on data collection, data processing and analysis of results that is made using the PEIR. From the water sample taken samples, at a (01) modern wells, one (01) a borehole and (01) river, where Bacteriological and Physico-chemical analyzes were performed. Analysis of water samples provided the parameters (color: well = 8; river = 19 and PH: Well = 5.6; Bore hole = 6.0) which Journal of Applied Biosciences

Water, source of life, is also a source of disease when it is polluted. The aim of this study is to analyze the physicochemical quality and the bacteriological quality of the wells, boreholes and tank for drinking water in the Commune of Allada. The methodology is based on the collection of data, data processing and analysis carried out at the Laboratory for Quality Control of Water and Food (LCQEA) of the Ministry of Health. From the water sampling carried out at three (03) traditional wells, two (02) boreholes, two (02) tanks and water of river (02), bacteriological and physicochemical analysis were performed. The results showed that pH is higher at the tank than other water sources. Well 3 (P3) has a very high electrical conductivity (EC) which was 384.95 μS / cm and 192.47 mg / L for total dissolved solids (TDS). The tank 2 exhibited high value in pH 9.14; 71.72 (μS / cm) for the electrical conductivity (CE) and 35.86 mg / L, in total dissolved solids (TDS). Well 2 (P2) has a high turbidity of 4.53 (NTU) at all analyzed water points. The concentration of iron, copper nickel and cobalt remains low(less than 0.4 mg / L).Wells 2 and tank 1 are concentrated in lead, respectively 20.75mg / L and 13.71mg / L. Tank 1 and 2 have a high concentration of cadmium compared to other water points. The presence of Escherichia coli with a high concentration at home SONEB (39 CFU) and at well 2 (7.10 2 ) was found. In view of these results some recommendations were made.

Objective: The present study aims to analyze the risk of diseases related to bad conditions of sanitation in the district of Aholouyèmè, in Benin. Methodology and Results: To achieve this goal, a statistical approach was adopted. The methodological process implemented documentary research, field survey through observation, investigations using questionnaire, interview guide and data analysis at laboratory. In order to understand the degree of pollution, some hydraulic infrastructures (wells) were sampled. The samples were analyzed in the laboratory of the control of Food Safety at the ministry of Agriculture in Benin. After fieldwork, the data was analyzed. Conclusion and application of results: Field investigations showed that the water wells dug in each village by The Head Office of Water (Ministry in charge of water and mines) are not functional any more. In addition, there was no water point installed by National Society of Waters in Benin. All sampled wells were microbiologically polluted. The presence of the faecal coliforms, streptococci and E. coli revealed a faecal contamination of water. Consequently, water from those wells was not safe for human consumption. Many waterborne diseases such as intestinal parasitosis, febrile diarrhoea and cholera prevailed in the district. The origins of this pollution were multiple. It can be cited bad garbage management, absence of latrine, lack of sanitation around wells, non-respect of hygienic rules.