Record Display for the EPA National Library Catalog


Main Title Mechanistic Roles of Soil Humus and Minerals in the Sorption of Nonionic Organic Compounds from Aqueous and Organic Solutions.
Author Chiou, C. T. ; Shoup, T. D. ; Porter, P. E. ;
CORP Author Geological Survey, Denver, CO. ;Oregon State Univ., Corvallis. Dept. of Agricultural Chemistry.;Corvallis Environmental Research Lab., OR.
Year Published 1985
Report Number EPA/600/J-85/121;
Stock Number PB86-100260
Additional Subjects Soil water ; Humus ; Sorption ; Organic compounds ; Water pollution ; Adsorption ; Mathematical models ; Insecticides ; Nitro compounds ; Phosphorus organic compounds ; Sulfur organic compounds ; Chlorine organic compounds ; Chlorine aliphatic compounds ; Cycloalkane compounds ; Moisture content ; Arid land ; Reprints ; Parathion ; Phosphorothioic acid/O-O-(dimethyl-ester) ; O-(nitrophenyl-ester) ; Lindane ; Cyclohexane/hexachloro
Library Call Number Additional Info Location Last
NTIS  PB86-100260 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Mechanistic roles of soil humus and soil minerals and their contributions to soil sorption of nonionic organic compounds from aqueous and organic solutions are illustrated. Parathion and lindane are used as model solutes on two soils that differ greatly in their humic and mineral contents. In aqueous systems, observed sorptive characteristics suggest that solute partitioning into the soil-humic phase is the primary mechanism of soil uptake. By contrast, data obtained from organic solutions on dehydrated soil suggest that adsorption by soil minerals is the major process. The relative significance of solute partitioning into humic phase and adsorption by soil minerals is influenced by the soil-moisture content and by the solvent medium from which the solute is sorbed.