Impact de l’agriculture urbaine sur la qualité des ressources en eau de surface du nord de la Côte d’Ivoire: cas du barrage de Koko dans la Commune de Korhogo
N’Guessan Simon Andon, Kouadio Augustin ALLA, Simplice Yao KOFFI
The Koko Dam plays an important role in providing drinking water to people in the city of Korhogo where the water deficit is loud. This research evaluates the impact of urban agriculture on the surface water of the Koko Dam. The triangulation of methods (literature search, collection and processing of primary data and direct observation) is practiced. Water samples from the dam are taken in the dry season and in the rainy season and treated according to pollution indicators. Surveys have been conducted on the production method of the market gardening sector and its actors. The results show that the physical-chemical and pesticide concentrations of lake water are acceptable during the dry season. On the other hand, during the rainy season, the concentrations of pesticides, Nitrite, Iron and Lead are very strong. Moreover, the concentration of microbiological parameters is very high in all seasons.