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Journal Article

Physico-chemical and bacteriological quality of groundwater in a rural area of Western Niger: a case study of Bonkoukou


Adamou,  H.
External Organizations;

Ibrahim,  B.
External Organizations;

Salack,  S.
External Organizations;

Adamou,  R.
External Organizations;

Sanfo,  S.
External Organizations;


Liersch,  Stefan
Potsdam Institute for Climate Impact Research;

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Adamou, H., Ibrahim, B., Salack, S., Adamou, R., Sanfo, S., Liersch, S. (2020): Physico-chemical and bacteriological quality of groundwater in a rural area of Western Niger: a case study of Bonkoukou. - Journal of Water and Health, 18, 1, 77-90.

Cite as: https://publications.pik-potsdam.de/pubman/item/item_23911
The precariousness of the rural population in Africa is often symbolized by the lack of potable and safe drinking water. This study investigates the physico-chemical and bacteriological characteristics of 32 water samples with respect to WHO standards. The water samples were collected from wells, boreholes and small drinking water supply systems (DWS) in and around the township of Bonkoukou (Niger). The Water Quality Index (WQI) tool was used to assess the overall water quality with different physico-chemical parameters. Where the pH of the samples was acceptable, the samples showed higher levels of mineralization and deoxygenation. Overall, the samples were slightly hard, chlorinated and sulfated but much alkaline and contained nitrate and nitrite ions 2–16 times higher than the WHO standards. The use of WQI shows that samples in the DWS are safe for drinking. Samples coming from wells are the most polluted (58.50%) compared to those taken from boreholes (53.00%), while the percentage of samples from boreholes, unfit for drinking, is higher (41.00%) than that of the samples taken from wells (25.00%). Moreover, water in this area was characterized by the presence of total germs indicating bacteriological pollution. Hence, for the supply of safe drinking water to the larger number of people in such a rural area, the capacity of actual DWS must be improved and widespread.