Grantee Research Project Results
2002 Progress Report: Center for the Study of Metals in the Environment
EPA Grant Number: R829500Center: Center for the Study of Metals in the Environment
Center Director: Allen, Herbert E.
Title: Center for the Study of Metals in the Environment
Investigators: Allen, Herbert E.
Institution: University of Delaware
EPA Project Officer: Hahn, Intaek
Project Period: April 1, 2002 through March 31, 2005
Project Period Covered by this Report: April 1, 2002 through March 31,2003
RFA: Targeted Research Center (2006) Recipients Lists
Research Category: Targeted Research , Hazardous Waste/Remediation
Objective:
The Center for the Study of Metals in the Environment is a multi-institutional consortium of scientists and engineers working to further the understanding of processes affecting the fate and effects of metals in aquatic and terrestrial ecosystems. Significant gaps in the ability to predict the fate and effects of metals in both aquatic and terrestrial systems continue to hamper appropriate risk assessments and cost-effective risk management. In these situations, decisions include many assumptions and the application of safety factors. The objective of this research project is to develop appropriate information so that regulatory decisions will be based on sound scientific principles. Much of the existing methodology for hazard identification and for risk assessment is based on experience with persistent organic pollutants such as dichloro-diphenyl-trichloroethane (DDT) and polychlorinated biphenyls (PCBs). The large differences in environmental behavior and potential for toxicity between organic compounds and metals are not incorporated into these methods. Assessment methodology currently is focused on the extent to which chemicals exhibit persistent, bioaccumulative, and toxic (PBT) characteristics. All three characteristics are important aspects of the assessment of risk, but their applicability to metals and the evaluation of metals data for these criteria differ from organic compounds.
As a replacement for the current methods for evaluating the effect of metals in the environment, the Center is developing a model for the behavior of metal compounds that can be used as a tool in the hazard assessment of metals and metal compounds. This model will include the physical and chemical mechanisms that control the fate and resulting bioavailability of metals discharged to natural waters. In particular, the transformations that affect metal fate and toxicity will be included. It is anticipated that it would be similar to the Unit World models; for example, the European Union System for the Evaluation of Substances (EUSES), which are used for evaluating PBT organic chemicals. Metal behavior in watersheds, streams, lakes, and reservoirs will be considered. The focus of this research effort is to provide the information necessary to formulate and parameterize the model.
Progress Summary:
Future Activities:
The research program will be expanded in Year 2. The SAC reviewed a series of proposals for research projects. Nine projects were approved for funding. Planning has been carried out with the SAC to allow the development of the UWM to be completed in a 3-year program. The following are the projects that were approved for Year 2:
Investigator | Institution | Project Title |
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Adams, C.D | University of Missouri, Rolla | Metals Speciation and Transport in the Black River of Missouri’s New Lead Belt |
Allen, H.E. | University of Delaware | Release of Metals from Particulate Matter |
Capitani, J.F | Manhattan College | Quantitative Structure Activity Relationships for Toxicity and Fate Parameters of Metal and Metal Compounds |
Church, T.M | University of Delaware | Metal Speciation in Watersheds |
Di Toro, D.M | University of Delaware | Developing a Unit World Model for Metals in Aquatic Environments |
Imhoff, P.T | University of Delaware | Evaluation of Automobile Sources for Metals in Urban Areas |
Meyer, J.S | University of Wyoming | A Test of the Biotic Ligand Model: Fish Exposed to Time-Variable Concentrations of Cu and Zn |
Ross, P. | Colorado School of Mines | Ecotoxicology of Mining-Related Metal Oxides in a High-Gradient Mountain Stream |
Sparks, D.L. | University of Delaware | The Impact of Surface Precipitation on Sequestration and Bioavailability of Metals in Soils |
References:
Journal Articles: 4 Displayed | Download in RIS Format
Other center views: | All 4 publications | 4 publications in selected types | All 4 journal articles |
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Type | Citation | ||
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Field LJ, Macdonald DD, Norton SB, Ingersoll CG, Severn CG, Smorong D, Lindskoog R. Predicting amphipod toxicity from sediment chemistry using logistic regression models. Environmental Toxicology and Chemistry 2002;21(9):1993-2005. |
R829500 (2002) R829500C001 (2002) R829500C002 (2002) R829500C003 (2002) R829500C004 (2002) R829500C005 (2002) R829500C006 (2002) R829500C007 (2002) |
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Paquin PR, Gorsuch JW, Apte S, Batley GE, Bowles KC, Campbell PGC, Delos CG, Di Toro DM, Dwyer RL, Galvez F, Gensemer RW, Goss GG, Hogstrand C, Janssen CR, McGeer JC, Naddy RB, Playle RC, Santore RC, Schneider U, Stubblefield WA, Wood CM, Wu KB. The biotic ligand model: a historical overview. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2002;133(1-2):3-35. |
R829500 (2002) R829500C001 (2002) R829500C002 (2002) R829500C003 (2002) R829500C004 (2002) R829500C005 (2002) R829500C006 (2002) R829500C007 (2002) |
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Santore RC, Mathew R, Paquin PR, DiToro DM. Application of the biotic ligand model to predicting zinc toxicity to rainbow trout, fathead minnow, and Daphnia magna. Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology 2002;133(1-2):271-285. |
R829500 (2002) R829500C001 (2002) R829500C002 (2002) R829500C003 (2002) R829500C004 (2002) R829500C005 (2002) R829500C006 (2002) R829500C007 (2002) |
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Smith K, Rainville J, Lesher E, Diedrich D, McKnight D, Sofield R. Fractionation of Fulvic Acid by Iron and Aluminum Oxides-Influence on Copper Toxicity to Ceriodaphnia dubia. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014;48(20):11934-11943. |
R829500 (Final) R829515 (Final) |
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Supplemental Keywords:
metal, oxide, aquatic, terrestrial, ecosystems, fate and transport, metal compounds, bioavailability, soil, suspended particles, cost-effective, risk management, safety, regulation, regulatory decisions, decision-making, hazard, risk assessment, persistent organic pollutants,, RFA, Scientific Discipline, INTERNATIONAL COOPERATION, Waste, Geochemistry, Hazardous Waste, Ecological Risk Assessment, Ecology and Ecosystems, Hazardous, fate and transport , PCB, remediation, DDT, extraction of metalsRelevant Websites:
http://www.ce.udel.edu/CSME/Index.html Exit
Progress and Final Reports:
Original Abstract 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
The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.