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Frequent Questions
Responses to frequent questions were compiled from inquiries made either by telephone to the Technical Review Workgroup for Metals and Asbestos (TRW) hotline (toll-free 1-866-282-8622) or via e-mail to pbhelp@epa.gov (please refer to the Technical Assistance page for further information).
Frequent Questions from the General Public
Frequent Questions from Risk Assessors on the IEUBK model
Frequent Questions from Risk Assessors on the Adult Lead Methodology
Bioavailability Guidance at the Assessing Relative Bioavailability in Soil at Superfund Sites page