SEDIMENTARY METALLIC POLLUTION OF WATER STREAM AFFECTED BY INDUSTRIAL DRAIN

In this study we have determined the factors of pollution and contamination for six heavy metals (Cu, Zn, Cd, Ni, Pb and Fe). Superficial sediment samples of a small water current affected by a reject of electro-refinery of copper were the aim of our study. Seven series of samples were collected between January 90 and January 91 above and below this reject in fonction of distance, we have concluded that: -in our case of slow water current, this sediment had the advantage of trapping an important quantity of metals pollutions. -unlimited level of pollution was registered for the copper, between excessive and important for cadmium and nickel while in profound the level of pollution was little bit smaller.