Environ. Sci. Technol. 1988, 22, 178-182
Acidification of Lakes in the Eastern United States and Southern Norway: A Comparison+ Richard F. Wrlght Norwegian Institute for Water Research, Box 33, 0313 Oslo, Norway
Synoptic surveys of lake chemistry in the eastern United States and in Norway span comparable gradients in acid deposition. Sulfate levels in lakes of both areas (less natural background) reflect inputs of sulfate from the atmosphere. Lake acidification and acid lakes occur in both regions. Levels of nonmarine Ca plus Mg provide a better measure of lake sensitivity than alkalinity. Alkalinity may be low due to high sensitivity or as a result of acidification. Lakes become acidic (alkalinity
