Author(s)

Konan Jean-Pierre Koffi^1*, Yao Alexis N’Go¹, Diakaria Kone², Kouakou Hervé Kouassi¹, Savané Issiaka¹

¹Laboratory of Geosciences and Environment of University of Nangui Abrogoua, Abidjan, Côte d’Ivoire.
²Department of Water Resources, National Office of Drinking Water (ONEP), Abidjan, Côte d'Ivoire.

The operating capacity of the Abidjan’s groundwater became insufficient. The deficit in drinking water resources in the District of Abidjan remains the major concern of the decision maker. The Aghien lagoon stands as one of the most interesting alternatives. However, studies show the levels of pollutions of this resource without lighting out on the causes and sources of these pollutions. The present study extends over the entire catchment of the Aghien lagoon which reveals the presence of urban areas and agricultural activity areas. This raises real concerns for the Ivorian authorities. This study suggests making cartography of the risk levels of pollution on the Aghien lagoon by the surface runoff on the watershed to enlighten the decision-makers on the possible measures to be taken for the protection of this resource. It emerges from it that the risk of contamination of the lagoon is very likely. Agricultural and domestic best practices inside the pouring pond are compulsory to fight against the pollutions of this resource.

Pollution Risk, Watershed, GIS, Aghien Lagoon, Abidjan

Koffi, K. , N’Go, Y. , Kone, D. , Kouassi, K. and Issiaka, S. (2015) Mapping of Pollution Risk of Surface Waters by Runoff from Watershed: Case of Aghien Lagoon (South of Côte d’Ivoire). Journal of Water Resource and Protection, 7, 1457-1466. doi: 10.4236/jwarp.2015.717119.