Survey of the Quality Physical, Chemical and Bacteriological of the Underground Waters of the Continental Terminal of the Township of Abomey-Calavi (Benin)
Sagnon Parfait Hounsinou *
Laboratoire d’Hydrologie Appliquée, Faculté des Sciences et Techniques, Université d’Abomey – Calavi, Bénin
Daouda Mama
Laboratoire d’Hydrologie Appliquée, Faculté des Sciences et Techniques, Université d’Abomey – Calavi, Bénin
Dominique Sohounhloue
Laboratoire d’Etude et de Recherche en Chimie Appliquée (LERCA), Ecole Polytechnique d’Abomey – Calavi (EPAC), Université d’Abomey-Calavi, Bénin.
*Author to whom correspondence should be addressed.
Abstract
Many campaigns of withdrawal of the underground waters have been done during the year 2013 to the level of the drillings situated in the township of Abomey-Calavi for control their quality. These withdrawals were the object of analysis according to the techniques of assessment of water quality described by Rodier (1978) and to the recommendations of the world organization of health (WHO). The physical and chemical analysis showed that the concentrations of the 98.7% of the studied drillings are superior to the norms recommended by the WHO (1994) and by Benin (2011). The studied drillings present without exception a bacteriological pollution. The very elevated microbial germ presence in water could constitute a sanitary risk importing for the inhabitants who consume the water of these drilling.
Keywords: Underground water, quality, physical, chemical, bacteriological