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THE IMPORTANCE OF BIOAVAILABILITY IN REMEDIATION OF METAL CONTAMINATED SOILS
Citation:
Ryan*, J A. AND W. R. Berti. THE IMPORTANCE OF BIOAVAILABILITY IN REMEDIATION OF METAL CONTAMINATED SOILS. Presented at SERDP & ESTCP Technical Symposium & Workshop, Arlington, VA, 11/28-30/00.
Description:
Reduction in exposure to soil metal contamination has typically been accomplished by soil removal and off site disposal, by covering, or by diluting with uncontaminated soil. Cost, logistical concerns, and regulatory requirements associated with excavation and disposal or ex-situ treatment, however, can make in-situ treatment an attractive option. Our current understanding of Pb exposure and the chemical, biochemical, and physical factors that affect its bioavailability and environmental chemistry may allow development of less costly and environmentally less disruptive methods of soil remediation. The USEPA's National Risk Management Research Laboratory and the DuPont Co. formed the "In-place Inactivaton & Natural Ecological Restoration Technologies" (IINERT) Soil-Metals Action Team in 1995 as part of the Remediation Technologies Development Forum. The IINERT Soil-Metals Action Team share a common interest in further developing and validating in situ techniques as viable technologies for eliminating the hazards of metals in soils.