PHYTOREMEDIATION OF DISSOLVED PHASE TRICHLOROETHYLENE USING MATURE VEGETATION

William J. Doucette, Bruce Bugbee, William A. Plaehn, Douglas C. Downey

2001 · 16 citations · 5 references

Concepts

Abstract

ABSTRACT: A field study was conducted to determine if existing, mature vegetation is involved in the uptake, volatilization and/or metabolism of trichloroethylene (TCE) from a shallow contaminated groundwater plume. Four on-site plants were sampled, three in the plume area and one outside. One additional off-site control plant was also sampled. Groundwater concentrations of TCE below the vegetation ranged from 0.4 to 90 mg/L. Flow-through glass chambers were used to collect transpiration gases for TCE analysis. Leaf, stem and root samples were collected and analyzed for TCE and 3 metabolites (2,2,2-trichloroethanol [TCEt], 2,2,2-trichloroacetic acid [TCAA] and 2,2–dichloroacetic acid [DCAA]) identified in previous laboratory studies. Measurable levels of

References

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