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Spatial and Temporal Variation of groundwater Salinity in the Northern and Western Region in the Sine-Gambie aquifer (Senegal).

This study intends to see the temporal and spatial evolution of groundwater salinization at the northern and western zone of the CT aquifer in the Sine-Gambie region (Senegal). To do this, a hydrochemical study was conducted in 2015 and compared with previous studies (2000 and 2012). This study is essentially based on the two parameters, electrical conductivity and chloride content. The results obtained show that the evolution of salinity observed in these areas is explained by a contamination of the groundwater by the waters from the Saloum River and the sea. The comparison of groundwater electrical conductivity maps showed a salinity increase between 2000 and 2015; with a salinization phenomenon which increases toward inland in phase with chloride levels that doubled in some wells. The study also shows that several calcium bicarbonate facies have evolved to calcium chloride facies, and calcium chloride facies to chloride sodium facies

Auteur(s) : Seyni NDOYE, Moumtaz RAZACK, and Cheikh Bécaye GAYE.
Pages : pp. 1679-1689
Année de publication : 2018
Revue : International Journal of Innovation and Applied Studies
N° de volume : Vol. 24 No. 4,
Type : Article
Mise en ligne par : NDOYE Seyni