Organic Pollution Indication as Tracer for the pollution of Well Water: The example of the District of Abomey-Calavi (Benin)

Abstract

The organic pollution represents a serious problem for the environment; the worn-out waters domesticated and non-purified represent the main source of organic pollution of waters. Followed it of analysis in the different points of observation made the object of a treatment of data by the establishment of a card of organic pollution of 20 traditional well water, 1 deep boring and 4 surface water of the region, that informs us on the influence of the dismissals and the quality of waters by the slant of an organic pollution indication that himself calculation according to the method of Leclercq, Maquet (1987) whose principle is to distribute the values of the polluting elements in 05 classes, to determine from his own measures, the number class correspondent for every parameter to make the average of it. The interpretation of the card representing the different parameters of organic pollution of the 20traditional well water, the boring water and the 4 surface water gives some results on the contamination or not of the naturel waters. The card shows that the different traditional well water in the district of Abomey-Calavi pass from a quality to another but they are more polluted than the deep boring water.