Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Chemical and physical characteristics of lakes in the northeastern United States

Journal Article · · Environmental Science and Technology; (USA)
DOI:https://doi.org/10.1021/es00167a004· OSTI ID:5674199
; ;  [1]
  1. Western Washington Univ., Bellingham (USA)
The chemical status of 768 lakes in the northeastern US was determined as part of the Eastern Lake Survey. The lakes were selected statistically, allowing for estimates of the chemical conditions in the northeastern lake population on the basis of 26 measured parameters. The objectives were to estimate the numbers of acidic (acid neutralizing capacity (ANC) {<=} 0) and low-ANC ({<=}50 {mu}equiv/L) lakes in the Northeast and to describe associated chemical conditions in the lakes. The largest number of acidic lakes in the Northeast was estimated for the Adirondack area of New York, whereas the fewest acidic lakes were estimated to occur in Maine. Sulfate concentrations were lowest in Maine and highest in the Poconos/Catskills, corresponding to the pattern in sulfate deposition. Acidic lakes were associated with low levels of base cations (calcium and magnesium) and elevated sulfate levels. Clear water, acidic lakes also had elevated concentrations of aluminum. Acidic lakes were not uniformly distributed in the Northeast. The distribution of acidic lakes was influenced principally by concentrations of sulfate and base cations, among other factors such as lake type and hydrologic flow path. The data collected during the Eastern Lake Survey support the hypothesis that regional lake acidification has occurred in the northeastern US.
OSTI ID:
5674199
Journal Information:
Environmental Science and Technology; (USA), Journal Name: Environmental Science and Technology; (USA) Vol. 22:2; ISSN ESTHA; ISSN 0013-936X
Country of Publication:
United States
Language:
English