Impact des Néo - Facteurs de Pollution sur la Qualité des Eaux de la Zone Aval de la Vallée de l'Oued Seybouse - Est Algérien = Pollution Néo Factors Impact on Water : Down Part of Oued Seybouse Valley - East of Algeria

Abstract

The study area has always been affected by pollution. Early works on the downstream area of the valley of Seybouse during the nineties have helped to identify sources of pollution. In addition, the survey conducted by us showed the emergence of new sources of pollution. In otherwise, the achieved survey has showed another source of pollution. The survey was based on samples distributed along the downstream area of the river. The chosen area can be justified by the appearance of some production units that are the origin of this neo-factor pollution. We notice a significant change. To materialize this new water quality in our study area of physicochemical surface water and wells have been completed. The results show significant pollution by major elements of and nutrients. The methods converge to confirm the natural pollution characterized by the linkages between major elements and pollution emissions by ETM (Elements Traces Metals) and nutrients. Changes in these factors confirm that pollution. The phenomenon of this pollution is dynamic and accelerated by the existing relationship between streams and wells. The graphs clearly show made the transfer between two media of pollution is important at wells that are directly related to the wadis thus justifying the presence of direct exchange between the two parties.