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RECORD NUMBER: 11 OF 265

OLS Field Name OLS Field Data
Main Title Assessment of the potential for transport of dioxins and codisposed materials to groundwater
Author Walters, R. W. ; Yousefi, Z. ; Tarleton, A. L. ; Ostazeski, S. A. ; Barry, D. C.
Other Authors
Author Title of a Work
Walters, Richard W.
Enfield, Carl George
CORP Author Maryland Univ., College Park. Dept. of Civil Engineering.;Robert S. Kerr Environmental Research Lab., Ada, OK.
Publisher Robert S. Kerr Environmental Research Lab., U.S. Environmental Protection Agency ;
Year Published 1989
Report Number EPA/600/6-89/002; EPA-R-813601
Stock Number PB89-166607
OCLC Number 21585384
Subjects Water, Underground--Pollution ; Dioxins ; Pollutants
Additional Subjects Ground water ; Soil surveys ; Waste disposal ; Water pollution ; Assessments ; Experimental design ; Transport properties ; Solubility ; Sorption ; Desorption ; Reaction kinetics ; Molecular structure ; Solvents ; Environmental transport ; Dioxins ; Polychlorinated dibenzodioxins
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EMBD  EPA/600/6-89/002 GWERD Library/Ada,OK 02/08/1992
NTIS  PB89-166607 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation xi, 101 p. : ill. ; 28 cm.
Abstract
Dioxins are very toxic contaminants and warrant study under a variety of experimental conditions. Studies were performed to evaluate the mobility of several of the dioxins in both soil columns as well as in batch experiments. The studies showed that the amount of chlorination did not necessarily control the partitioning of the dioxins, as expected, but also suggested that the structure or location where the Cl ion was attached to the benzene ring modified the hydrophobicity of the compound. Studies were performed with a variety of cosolvents which might mediate the movement of the dioxin. The observed modification in mobility was consistent with existing theory for enhanced mobility with truly miscible solvents. Experimental data appears to show reversibility in the sorption process, but significantly limited by kinetics with 30 to 50 days required to release 50-90% of the contaminant.
Notes
"March 1989" "EPA/600/6-89/002" "PB89-166607"