PHYSICOCHEMICAL AND BACTERIOLOGICAL QUALITY OF DRINKING WATER CONSUMED BY THE POPULATION OF ISIRO HEALTH ZONE

The aim of this study is to determine the physicochemical and bacteriological qualities of drinking water consumed by the population of Isiro city. An analytical and observational study was conducted in the province of Haut-Uélé in the north-east of the Democratic Republic of Congo (DRC). Twenty-three water points and 115 households were selected for the collection of water samples. Physicochemical parameters: (temperature, pH, turbidity and electrical conductivity), nitrate, nitrite and ammonium were determined. The analyzes of bacteriological parameters: Fecal and total coliforms were determined by the membrane filtration method as described in Wagtech Kit. The study of the sensitivity of the antibiotic bacteria was made by the agar diffusion method. The data was analyzed using SPSS 20.0 and Stata 13 for a degree of meaning of 0.05. After the processing of all data, the following results were observed: the average water pH was 6.47 and 6.36 respectively at the level of supply points and households; The average water temperature was 28.10 ° C and 27.88 ° C respectively at the level of supply points and households; The average water turbidity at the level of supply points is 2.23 NTU. Only 8.7% of water points deliver drinking water according to WHO standards. 98.3% of the waters stored in households was very polluted and 51.7% strains of Escherichia coli were sensitive to ciprofloxacin.