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Main Title Effects of acid precipitation on soil leachate quality : computer calculations /
Author Sposito, Garrison,
Other Authors
Author Title of a Work
Page, A. L.
Frink, Mark E.,
CORP Author California Univ., Riverside. Dept. of Soil and Environmental Sciences.;Corvallis Environmental Research Lab., OR.
Publisher Corvallis Environmental Research Laboratory, Office of Research and Development, U.S Environmental Protection Agency,
Year Published 1980
Report Number EPA-600/3-80-015
Stock Number PB80-137755
OCLC Number 06259919
Subjects Acid rain--Computer programs ; Soils--Leaching--Computer programs ; software
Additional Subjects Acidification ; Precipitation(Meteorology) ; Soil chemistry ; Mathematical models ; Thermodynamic equilibrium ; Metals ; Aluminum ; Iron ; Cation exchanging ; Adsorption ; Soil fertility ; pH ; Cadmium ; Lead(Metal) ; Computer programming ; Fortran ; Tables(Data) ; Acid rain ; Fortran 5 programming language ; GECOM computer program ; IBM-370 computers
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EHAM  QH541.R3 EPA-, 600/3-, 80-015 Region 1 Library/Boston,MA 04/29/2016
EJBD  EPA 600-3-80-015 Headquarters Library/Washington,DC 04/07/2014
ELBD ARCHIVE EPA 600-3-80-015 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-3-80-015 Region 10 Library/Seattle,WA 07/29/2005
ESBD  EPA-600-3-80-015 CPHEA/PESD Library/Corvallis,OR 09/05/2017
NTIS  PB80-137755 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 39 pages : illustrations ; 28 cm.
The multipurpose computer program GEOCHEM was employed to calculate the equilibrium speciation in twenty-three examples of acid precipitation from New Hampshire, New York, and Maine, and in the same number of mixtures of acid precipitation with minerals characteristic of soils in the three states mentioned. Between 100 and 200 soluble inorganic and organic complexes were taken into account in each speciation calculation. The calculations performed on the acid precipitation samples showed that the metals (including heavy metals) and the sulfate, chloride, and nitrate ligands would be almost entirely in their free ionic forms, while the phosphate, carbonate, ammonia, and organic ligands would be in their protonated forms. This result was independent of the geographic location of the acid precipitation and the month of the year in which it was collected. The speciation calculations on the precipitation-soil mineral mixtures showed that aluminum and iron levels in a soil solution affected by acid precipitation would be significantly higher than in one whose chemistry is dominated by carbonic acid. It was also shown that soil cation exchangers would adsorb preferentially heavy metals, such as Cd and Pb, which are found in acid precipitation.
"January 1980." Includes bibliographical references (pages 36-39). Contract number Contract Number: B0836NAEX