In this paper there were established the particularities of copper migration in the Lower Dniester waters and was estimated the contribution of different forms of metal migration to the processes of radical selfpurification of water. The migration of copper(II) in the researched segment of the Lower Dniester, in most cases, held in colloidal dissolved form. The suspended form has reached 46.55% on the average value of the total concentration of metal in water samples.
