Record Display for the EPA National Library Catalog

RECORD NUMBER: 488 OF 1211

OLS Field Name OLS Field Data
Main Title Factors Affecting the Long-Term Response of Surface Waters to Acidic Deposition: State-of-the-Science.
Author Church, M. R. ; Turner, R. S. ; Johnson, D. W. ; Elwood, J. N. ; Van Winkle, W. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Oak Ridge National Lab., TN.
Year Published 1986
Report Number EPA/600/3-86/025;
Stock Number PB86-178118
Additional Subjects Acidification ; Surface waters ; Water pollution ; Hydrology ; Cations ; Alkalinity ; Reduction(Chemistry) ; Sulfates ; Adsorption ; Watersheds ; Surveys ; Correlation ; Soils ; Assessments ; Mathematical models ; Vegetation ; Acid precipitation ; Plant canopy
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB86-178118 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/21/1988
Collation 317p
Abstract
Recent intensive study of the causes of surface water acidification has led to numerous hypothesized controlling mechanisms. Among these are the salt-effect reduction of alkalinity, the base cation buffering and sulfate adsorption capacities of soils, availability of weatherable minerals, depth of till, macropore flow, and type of forest cover. Correlative and predictive models have been developed to show the relationships(if any) between the hypothesized controlling mechanisms and surface water acidity, and to suggest under what conditions additional surface waters might become acid. The US EPA is interested in surveying watershed characteristics to correlate with predictive model simulations in and effort to assess how many surface waters will become acid within certain timeframes. The document is a review of our current knowledge of factors and processes controlling soil and surface water acidification, as well as an assessment of the adequacy of that knowledge for making predictions of future acidification.