Integrated lake-watershed acidification study. Volume 3. Lake chemistry program. Final report
As one of a series of reports from the Integrated Lake-Watershed Acidification Study, this volume focuses on the acid-base chemistry of Woods, Sagamore and Panther Lakes in the Adirondack Mountains of New York. The lake basins receive similar amounts of acid deposition on a per-unit-area and time basis. Woods Lake, though, is acidic, Panther is alkaline, and Sagamore is in between. Input-output analyses of the lake-watersheds indicate that all three, on a yearly basis, are net sinks for acidity and nitrate and net sources for Ca/sup 2 +/, Mg/sup 2 +/, Na/sup +/, K/sup +/, aqueous aluminum, iron, and manganese. The difference in the acidity of the lakes is due to different amounts of base cation release in the tributary watersheds. The release is highest for the alkaline lake and lowest for the acidic lake. Spring acidification during snowmelt is limited to the upper meter or two of the lakes and is associated with decreases in the base cation concentrations and increases in nitrate. A portion of the nitrate appears to be derived internally from the watersheds. Among the topical research findings are the importance of including aluminum when computing the acid neutralizing capacity of low pH waters, and the lack of release of lead from the lake sediments, even upon acidifying the interstitial water to pH 3. 66 references, 41 figures, 7 tables.
- Research Organization:
- Virginia Univ., Charlottesville (USA)
- OSTI ID:
- 6870348
- Report Number(s):
- EPRI-EA-3221-Vol.3; ON: TI84920486
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
ACID NEUTRALIZING CAPACITY
ACID RAIN
ACIDIFICATION
ADIRONDACK MOUNTAINS
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM
APPALACHIAN MOUNTAINS
ATMOSPHERIC PRECIPITATIONS
CALCIUM
CATIONS
CHARGED PARTICLES
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
DATA
ELEMENTS
EPRI
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
INFORMATION
IONS
IRON
LAKES
MAGNESIUM
MANGANESE
METALS
MONTHLY VARIATIONS
MOUNTAINS
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXYGEN COMPOUNDS
PH VALUE
POTASSIUM
RAIN
SEDIMENTS
SNOW
SODIUM
SULFATES
SULFUR COMPOUNDS
SURFACE WATERS
TRANSITION ELEMENTS
VARIATIONS
WATER CHEMISTRY
WATERSHEDS