Role of precipitation chemistry versus other watershed properties in Wisconsin Lake acidification

Technical Report · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6925896

Loucks, O L; Glass, G E; Sorensen, J A; Liukkonen, B W; Allert, J

Data for over 100 watershed properties, including aspects of topography, hydrology, geology, soils, vegetation, lake morphometry, and input precipitation chemistry were developed since 1980 for 316 watersheds in northern Wisconsin. The hypothesis being evaluated for this lake population is that the observed water chemistry can be accounted for as a function of antecedent water and chemical inputs, after considering exchange processes in the lake and watershed and the lake/groundwater interactions. Observed variability in color, sulfate, and acid-neutralizing-capacity levels in Wisconsin lakes were explained. The results differ from previous studies in Wisconsin and nearby areas of Michigan and Minnesota by indicating that in some lakes acidity may not be in equilibrium with current precipitation chemistry.

• Research Organization: Environmental Protection Agency, Duluth, MN (USA). Environmental Research Lab.
• OSTI ID: 6925896
• Report Number(s): PB-88-225727/XAB; EPA-600/J-86/467
• Country of Publication: United States
• Language: English

Related Subjects

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520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ACID NEUTRALIZING CAPACITY
ACID RAIN
ACIDIFICATION
ATMOSPHERIC PRECIPITATIONS
CHEMISTRY
COLOR
GEOLOGY
GROUND WATER
HYDROGEN COMPOUNDS
HYDROLOGY
LAKES
NAPAP
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLLUTION
RAIN
SOILS
SULFATES
SULFUR COMPOUNDS
SURFACE WATERS
TOPOGRAPHY
WATER
WATER CHEMISTRY
WATER INFLUX
WATER POLLUTION
WATERSHEDS