Development of a Model to Predict the Bioavailability of Metals to Soil InvertebratesEPA Grant Number: R829500C006
Subproject: this is subproject number 006 , established and managed by the Center Director under grant R829500
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Center: Center for the Study of Metals in the Environment
Center Director: Allen, Herbert E.
Title: Development of a Model to Predict the Bioavailability of Metals to Soil Invertebrates
Investigators: Lanno, Roman
Institution: Oklahoma State University
EPA Project Officer: Hahn, Intaek
Project Period: April 1, 2002 through March 31, 2004
RFA: Targeted Research Center (2002) Recipients Lists
Research Category: Targeted Research , Hazardous Waste/Remediation
The objective of this research project is to examine the relationship between physical and chemical characteristics of soils (e.g., organic matter, pH, cation exchange capacity) and the bioavailability, uptake, metabolism, and toxicity of zinc (Zn) and cadmium (Cd) by soil invertebrates. Metal speciation in pore water and the invertebrate gastrointestinal system and tissues also will be determined to develop a Biotic Ligand Model (BLM) for soil invertebrates, which would enhance our ability to predict the toxicity of metals in soil systems. Research during this past year has focused on the development of a method for the fractionation of earthworms to provide a tool for examining the partitioning of metals within a soil invertebrate species. This is the first step in understanding metal metabolism in various organisms to determine which fraction of metal in the organism best represents a biotic ligand associated with a toxic response.
Publications and Presentations:Publications have been submitted on this subproject: View all 3 publications for this subproject | View all 3 publications for this center
Journal Articles:Journal Articles have been submitted on this subproject: View all 3 journal articles for this subproject | View all 3 journal articles for this center
Supplemental Keywords:RFA, Scientific Discipline, INTERNATIONAL COOPERATION, Waste, Geochemistry, Hazardous Waste, Environmental Monitoring, Ecological Risk Assessment, Hazardous, fate and transport , modeling, remediation, aquatic ecosystems, mobility of contaminants, bioaccumulation, metal contamination
Progress and Final Reports:
Main Center Abstract and Reports:R829500 Center for the Study of Metals in the Environment
Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
R829500C001 Role of Dietary Exposure for Bioaccumulation and Toxicity of Metals in Aquatic Ecosystems Affected by Mining
R829500C002 The Role of Organic Matter and Metal Oxides in the Retention of Trace Metals by Soil and Suspended Particles
R829500C003 Developing a Model to Predict the Persistence of Metals in Aquatic Environments
R829500C004 Effects of Dietary Metal Exposure on Fish and Aquatic Invertebrates
R829500C005 Aquatic Toxicity and Exposure Assessment
R829500C006 Development of a Model to Predict the Bioavailability of Metals to Soil Invertebrates
R829500C007 Bioaccumulation and Toxicity of Dietborne Particulate Metals to Benthic Invertebrates