Lake Onega water per year, of which 46% are industrial and household water, 25% is stormwater runoff and 16% is melioration-related drainage. This drainage contains of phosphorus and of nitrogen; respectively of these elements are removed through the River Svir whereas the rest accumulates in the lake. Ships and motor boats (about 8,000 units) bring oil pollution at the level of about per navigation year, as well as phenols (), lead () and oxides of sulfur, nitrogen, and carbon. The lake basin is a major source of granite, marble and black schist in Russia which have been exploited in the area since
Daniel Onega Daniel Onega Daniel Onega (born March 17, 1945) is a retired Argentine football player who played most of his career for River Plate. He also played for the Argentina national team between 1966 and 1972. He is the brother of the late midfielder Ermindo Onega. Onega started his career at River Plate. It was with River Plate that he became the topscorer in the 1966 Copa Libertadores with 17 goals, setting the record for the most goals ever scored in a single season in that tournament, a record that has never been surpassed. He is also the 4th in the