On the question of how the natural migration of copper in lake Onega

Features of the natural migration of copper in Lake Onega studied. It is shown that under conditions of surface water the copper is present in a state of Cu (II) in ionic form. The forms of migration are change depending on the physic-chemical characteristics of the environment. The main part of the copper enters the lake from river runoff, the proportion of rainfall and ground water in total coming of copper is low.