ABSTRACT
J.P. Jourda1,2, K.J. Kouamé1, M.B. Saley1,2, K.F. Kouamé1,2, B.H. Kouadio1,2 & K. Kouamé2
1 LSTEE: Laboratory of Sciences and Technology of Water and the Environment, Department of Earth Sciences of Cocody (Abidjan) University, Abidjan, Cote d’Ivoire
ABSTRACT: A new approach relating to the vulnerability mapping of pollution in urban environments has been developed and implemented for the aquifer in Abidjan. The parameters identified in this new approach are both intrinsic and external. The digitising and the scanning of the parametric maps were carried out using MapInfo and ArcView. Each map was transformed into a grid and classified into four classes. Each class is based on an index according to its importance in the process of aquifer contamination. Combining these maps using ArcView enabled us to obtain the vulnerability map of the Abidjan Aquifer to pollution. This map reveals two zones: a zone of ‘medium vulnerability’ located at the east and the west of Abidjan and a high zone of ‘high vulnerability’ located at the south and north in the area of recharge of the Abidjan Aquifer.
