The EPA Risk Assessment Forum organized a workshop on December
10 and 11, 1998, to address generic technical issues related to
dermal exposure and risk assessment that were raised during the
February 1998 peer review of the Superfund Dermal Guidance (SDG).
The issues were organized into four categories: 1) dermal exposure
to contaminants in water, 2) dermal exposure to contaminants in
soil, 3) adjustment of toxicity factors to reflect absorbed dose,
and 4) risk characterization and uncertainty analysis for dermal
assessments. Questions within each category were presented to help
structure and guide the workshop discussion. In addressing these
questions, workshop participants were asked to consider: what do
we know today that can be applied to answering the question or
providing additional guidance on the topic; what short-term studies
could be conducted to answer the question or provide additional
guidance; and what longer-term research may be needed to answer
the question or provide additional guidance. This report summarizes
the discussions at the workshop.
FOR FURTHER INFORMATION CONTACT:
Steven Knott
Risk Assessment Forum (8601D)
U.S. Environmental Protection Agency
1200 Pennsylvania Avenue, N.W.
Washington DC 20460
telephone: 202-564-3359
facsimile: 202-565-0062
email: knott.steven@epa.gov.