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RECENT ENHANCEMENTS TO THE DIETARY EXPOSURE POTENTIAL MODEL
Citation:
Julien, E. A., M R. Berry Jr., J. R. Tomerlin, M. Y. Sert, K. D. Tucker, AND D. K. Waylett. RECENT ENHANCEMENTS TO THE DIETARY EXPOSURE POTENTIAL MODEL. Presented at ISEA Meeting, Monterey, CA, October 24-27, 2000.
Impact/Purpose:
1. To identify those pesticides, pathways, and activities that represent the highest potential exposures to children;
2. To determine the factors that influence pesticide exposures to children;
3. To develop methods for measuring multimedia exposures to children, including methods that account for important activities that take place in home, school, and day care settings;
4. To generate data on multimedia pesticide concentrations, pesticide biomarkers, and exposure factors that can be used as inputs to aggregate exposure models for children.
Description:
Presentation describes recent enhancements & new applications of the Dietary Exposure Potential Model (DEPM), a model developed to assist in design & interpretation of dietary exposure measurements. Model is an interactive system that provides dietary exposure estimates using data from established food consumption and residue databases. Dietary exposure to a chemical may be estimated for U.S. population and for 20 sub-populations defined by various demographic characteristics. DEPM has been updated to include additional consumption data, and residue data from a variety of chemical classes. Recent enhancements add considerable flexibility to the program. The user may combine residue data from multiple databases. Also user may modify data reported in DEPMs resident databases and may incorporate data for chemicals & foods that are not included in any of databases. Analysis of contribution of tap water to total exposure is also possible. In addition user may incorporate food consumption data from daily intake diary studies such as from files created using electronic food coding software. Although not intended for risk assessment DEPM provides preliminary estimates of dietary exposure and can be used to compare exposure estimates across ages, sex, reigons, etc.; provide preliminary estimates of relative importance of diet to total exposure; and indicate food items or consumption patterns primarily responsible for exposure to specific residues.