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RECORD NUMBER: 141 OF 445

OLS Field Name OLS Field Data
Main Title Empirical Models of Pb and Cd Partitioning Using Data from 13 Soils, Sediments, and Aquifer Materials.
Author Loux, N. T. ; Hassan, S. M. ; Chafin, C. R. ;
CORP Author Georgia Univ., Athens. Dept. of Crop and Soil Science.;Environmental Protection Agency, Athens, GA. Ecosystems Research Div.
Publisher Aug 2005
Year Published 2005
Report Number EPA/600/R-05/077;
Stock Number PB2006-101101
Additional Subjects Contaminated environments ; Toxicity ; Lead (Metal) ; Cadmium ; Partitioning ; Environmental pollutants ; Metallic elements ; Solubilazation ; Natural waters ; Solids ; Risk assessment ; Ionizable contaminants ; Modeling ; Lead (Pb) ; Cadmium (Cd)
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=P1000BAR.PDF
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB2006-101101 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/04/2006
Collation 54p
Abstract
Lead (Pb) and cadmium (Cd) are two of the most common toxicants found in contaminated environments. Because solubilization of these metallic elements from the solid phase can influence their fate, transport and bioavailability, the partitioning coefficient (K( sub d)) for these metals between environmental solids and natural waters is a key parameter needed for assessing the risks posed by these two elements when present in environmental solids at elevated concentrations. In common with other ionizable contaminants, theoretical models applicable to all environments for assessing the partitioning behavior of Pb and Cd do not exist. Consequently, empirical partitioning models have been developed by the international technical research community. Using large datasets of Pb and Cd partitioning obtained from 13 aquifer materials, soils and sediments, two improved, commonly applicable, empirical models of extended accuracy and applicability were developed in this work.