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REDUCING CHILDREN'S RISK FROM LEAD IN SOIL
Citation:
Ryan*, J A., K G. Scheckel*, S. L. Brown, S. W. Casteel, R. L. Chaney, P. Grevatt, J. Hallfrisch, K G. Scheckel*, M. Maddaloni, AND D. Mosby. REDUCING CHILDREN'S RISK FROM LEAD IN SOIL. Schnoor, J. (ed.), ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 38(1):19A-24A, (2004).
Description:
Traditional methods for reducing risk from elevated levels of soil Pb involves removal, covering, or dilution by mixing with uncontaminated soil. Believing that in situ remediation techniques are viable alternatives, the EPA=s National Risk Management Research Laboratory (NRMRL) and DuPont Corporation established a collaborative effort to evaluate in situ remediation technologies. A field experiment at a Pb- contaminated urban site in Joplin, MO was established in the fall of 1996 as part of this collaborative effort. Reductions in Pb bioavailability (in vivo and in vitro) and changes in Pb geochemistry observed as a result of in situ treatment demonstrate that reduction in soil Pb risk can be accomplished without soil removal.