Contribution of the Geographic Information System (GIS) and the Analytical Hierarchy Process (AHP) in the Management of Worn Water and Deposit in the District of Abobo, Abidjan, Cote dIvoire: Case of Avocatier-Agnissankoi

The present study aimed to determine the impact of the management of worn water and deposit on health and environment. An investigation was carried out near 642 houses of Avocatier-Agnissankoi, followed by an observation campaign of the operation of the drainage systems. The individual Cleansings with the septic tanks are dominant (autonomous Cleansing). Worn and winnow waters resulting from the houses had any treatment and are rejected into the nature. That involves a degradation of the environment of life and the proliferation of hydrous diseases. The use of the geographic information system (GIS) and the Analytical Hierarchy Process (AHP) allow recording the level of cleansing through the cartography of the management of worn water and deposit. The good cover class of cleansing occupies 12, 84 PC of the study zone and is in the North of Belle-cit. The worn water and deposit drainage of the other suburbs is carried out in great majority by traditional lost melt latrines whose pit is carried out by fortune shaft sinkers. This pollution, generated by the anthropic activities, presents a serious danger for the public health.