Publication Type:Book Chapter
Source:The physical environment of the city of Greater Sudbury, Ontario Geological Survey, Toronto, ON, Canada, Volume 5, p.175-192 (2002)
Keywords:Canada, copper, Deposition, eastern canada, ecology, effluents, erosion, geochemistry, metals, Mining, mining geology, Monitoring, NICKEL, Ontario, phosphorus, pollutants, pollution, processes, remediation, Risk assessment, sampling, Sudbury Ontario, tailings, technology, water quality, water resources
Kelly Lake, on the western edge of the urban core of Sudbury, has been one of the community's most important environmental assets and is an archive of its environmental history. It is at the focus of a largely urban and industrial watershed and has received run-off and discharge from a large mining and smelting complex, as well as sewage effluent, since the 1880s. After air pollution caused devegetation, severe erosion led to rapid progradation of the delta at the mouth of the largest incoming creek which drains most of the watershed. Since 1992 the delta has stabilized. Reduction of erosion because of revegetation in the watershed is among several factors that may have been responsible. An 18 m deep basin in the lake has served as a trap for fine sediment and organic matter. Biochemical and geochemical processes in the lake, resulting from the interaction of metals and organic matter, have established it as a storehouse of contamination that would otherwise have travelled downstream.
GeoRef, Copyright 2018, American Geological Institute.<br/>2004-050605<br/>Kelly Lake