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Extramural Research

Grantee Research Project Results

Grantee Research Project Results

Exploitation of Plants for In Situ Bioremediation of Pesticide-Contaminated Sites

EPA Grant Number: U914772
Title: Exploitation of Plants for In Situ Bioremediation of Pesticide-Contaminated Sites
Investigators: Kruger, Ellen L.
Institution: Iowa State University
EPA Project Officer: Broadway, Virginia
Project Period: January 1, 1995 through January 1, 1996
Project Amount: $102,000
RFA: STAR Graduate Fellowships (1995)
Research Category: Fellowship - Health , Health Effects , Academic Fellowships

Description:

Objective:

The overall objective of this research project is to determine whether the presence of plants at pesticide-contaminated sites enhances the dissipation of pesticide wastes as a result of increased degradation by microbial communities in the rhizosphere.

Approach:

Experiments will be conducted to address these specific hypotheses: (1) rhizosphere soil from Kochia sp. growing in soil contaminated with pesticides will degrade high concentrations of a herbicide mixture more rapidly than similar soil not previously exposed to such contamination; (2) herbicide-resistant plants will increase the bioavailability and degradation of herbicides that have aged in soil; and (3) a rhizosphere effect can be created in subsurface soil from a contaminated site, thus supporting the importance of the rhizosphere effect in rapid degradation of pesticide wastes.

Supplemental Keywords:

fellowship, pesticide, pesticide wastes, rhizosphere, contamination, degradation, bioavailability, soil, herbicide., Scientific Discipline, Toxics, Waste, Water, Contaminated Sediments, Environmental Chemistry, pesticides, Bioremediation, Ecology and Ecosystems, fate and transport, contaminant transport, microbial degradation, biodegradation, contaminated sediment, adsorption, biotechnology, contaminants in soil, bioremediation of soils, phytoremediation, rhizososphere

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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.

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