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首页> 外文期刊>International Journal of Environmental Chemistry >Spatio-Temporal Evolution of the Quality of Drinking Water in M'pody, a Village in the District of Anyama (Ivory Coast)
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Spatio-Temporal Evolution of the Quality of Drinking Water in M'pody, a Village in the District of Anyama (Ivory Coast)

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In M'pody village of Anyama district, an epidemic of diarrhoea was detected in January 2020. These cases of diarrhea would be linked, according to the population concerned, to the consumption of water from the improved village hydraulic system (IVH), which has not been maintained for nearly 3 years. The objective is spatio-temporal assessment of the quality of drinking water in M'pody. The methodology consisted in carrying out four campaigns to collect water samples from well, rivers and the single borehole. Classical physico-chemical parameters were determined by electrochemical and spectrophotometric methods. Microbiological analysis was carried out using membrane filtration technique. Results showed that the waters analyzed were weakly mineralized and all contained germs that were indicators of faecal pollution. The parameters implicated in the non-potability of the well, borehole and river water during the four seasons concerned turbidity, pH, nitrite, ammonium, total iron and the following germs: Escherichia coli, Enterococcus, Pseudomonas and sulphite-reducing anaerobes. Furthermore, Kohonen's Self-Organizing Map (SOM) resulted in four classes. Class I is made up of 68.05 of samples in the database. Class II comprises 21.18, Class III contains 2.77 and class IV represents 7.98 of the samples. To limit water pollution, the following measures should be recommended: isolate the deep aquifers from the superficial aquifers by resistant casing, protect roof from external contributions, install sanitation facilities downstream of wells and boreholes, move waste dumps and latrines away from wells and boreholes.

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