A novel method of sensitivity analysis testing by applying drastic method and fuzzy optimization method to assess groundwater vulnerability to pollution, case of Senegal River basin in Mali
Vulnerability to groundwater pollution from Senegal basin was studied by two different but complementary methods: the DRASTIC method (which evaluates the intrinsic vulnerability) and the fuzzy method (which assesses the specific vulnerability taking into account continuity of the parameters). The validation of this application has been tested by comparing the membership in groundwater and distribution of different classes of vulnerabilities established as well as the nitrate distribution in the study area.