Record Display for the EPA National Library Catalog


Main Title Chemical/biological relationships relevant to ecological effects of acid rainfall /
Author Reuss, J. O.,
CORP Author National Ecological Research Lab., Corvallis, Oreg.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Environmental Research Center,
Year Published 1975
Report Number EPA-660/3-75-032; EPA-ROAP-21ALU-32
Stock Number PB-244 409
OCLC Number 01660979
Subjects Acid rain ; Acid rain--Environmental aspects ; Plant-soil relationships
Additional Subjects Air pollution ; Rain ; Acidity ; Plants(Botany) ; Soil chemistry ; Acidification ; Plant metabolism ; Carbon dioxide ; pH ; Bicarbonates ; Ammonium compounds ; Ecology ; Reaction kinetics ; Oxidation reduction reactions ; Precipitation washout
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA-660-3-75-032 Headquarters Library/Washington,DC 12/23/2014
EKCD  EPA 660/3-75-032 CEMM/GEMMD Library/Gulf Breeze,FL 11/27/2018
ELBD ARCHIVE EPA-660-3-75-032 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD  EPA 660-3-75-032 AWBERC Library/Cincinnati,OH 04/25/1998
NTIS  PB-244 409 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 46 pages : illustrations, figures, tables ; 28 cm
This paper deals with problems of measurement and interpretation of rainfall acidity in terms of effects on the soil-plant system. The theory of the carbon dioxide-bicarbonate equilibria and its effect on rainfall acidity is given. The relationship of a cation-anion balance model of acidity in rainfall to plant nutrient uptake processes is discussed, along with its relationship to a model previously proposed in the literature. Average H(+) concentration calculated from pH measurements does not appear to be a satisfactory method of determining H(+) loading from rainfall if the rain is not consistently acid. Calculating loading from H(+) minus HCO3(-), strong acid anions minus basic cations, or net titratable acidity is suggested. The flux of H(+) ions due to plant uptake processes and sulfur and nitrogen cycling is considered. H(+) is produced by oxidation of reduced sulfur and nitrogen compounds mineralized during decomposition of organic matter. The soil acidifying potential due to the oxidation of the NH4(+) in rainfall is apparently of a similar magnitude to the direct acidity inputs.
"June 1975." Includes bibliograpical references (pages 44-46). "Program Element No. 1AA006, ROAP/Task No. 21ALU32."