Physico-chemical analysis of rainwater stored in cisterns for consumption in the Nyiragongo territory (RD CONGO)

The aim of this research is to assess the quality of rainwater stored in cisterns in Nyiragongo territory in order to prevent pathologies among the population. The various household surveys were complemented by an analysis campaign. Twenty-five (25) cisterns were targeted, making it possible to assess the bacteriological and physico-chemical quality of the water stored for actual use. Household surveys revealed a lack of hygiene around the cisterns. Of the twenty-five water samples analyzed, only two were free of any contamination. The conclusion is that the consumption of rainwater exposes the population of Nyiragongo territory to water-borne diseases such as gastro-enteritis and many other pathologies. However, given the difficulties these inhabitants face in accessing sources of drinking water, and thanks to the non-turbid state of this water, it can be consumed after prior treatment with chlorine and/or zonation.