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
Lake Nona Golf & Country Club Nona Golf & Country Club is located 20 minutes from downtown Orlando, 10 minutes from the Orlando International Airport and 30 minutes from the Atlantic beaches. The community is centered in Tavistock Group's current mixed-use development plan for the Lake Nona Region, which is home to a Life Sciences Cluster, Lake Nona Medical City, and a Sports & Performance District. Medical City includes the University of Central Florida Health Sciences Campus, University of Florida Research & Academic Center, Nemours Children’s Hospital, Orlando Veterans Affairs Medical Center and Guidewell Innovation Center. Lake Nona’s Sports and Performance District creates opportunities and environments