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Model Report

Dietary Exposure Evaluation Model – Food Commodity Intake Database

Last Revision Date: 10/08/2009 View as PDF
General Information Back to Top
Model Abbreviated Name:

Model Extended Name:

Dietary Exposure Evaluation Model – Food Commodity Intake Database
Model Overview/Abstract:
DEEM is a dietary exposure analysis system for performing chronic and acute exposure assessments. DEEM employs Monte Carlo Analysis (MCA) techniques in order to provide probabilistic assessments of dietary pesticide exposures when residue data for targeted foods are available as distributions.
Keywords: Residue, consumption, diet, commodity, chemical, Monte Carlo, probabilistic, stochastic, random, exposure, risk, MOE, RfD, NOAEL, Sub-population
Model Technical Contact Information:
Agency Contact:
David Hrdy
Health Effects Division
Office of Pesticide Programs
Office of Prevention, Pesticides, and Toxic Substances
US Environmental Protection Agency

Developer Contact:
Stephen Petersen
Durango Software LLC -- President – Developer

Model Homepage: http://www.durango-software.com/index.html Exiting the EPA Site
Plans for further model development: Replace current consumption database, 1994-1996, 1998 CSFII, with newer consumption database, 2001 – 2006 What We Eat in America

User Information Back to Top
Technical Requirements
Computer Hardware
486 processor with at least 256 KB ram
Compatible Operating Systems
Windows XP
Download Information
http://www.exponent.com/files/Uploads/Documents/Deem_%20Calendex_Agreement_2009.pdf exit EPA
Using the Model
Basic Model Inputs
Residue in parts per million to calculate exposure, NOAEL or Reference dose to calculate risk
Basic Model Outputs
Exposure in mg/kg/day or mg/day. Risk in percent of the Reference Dose and Margin of Exposure when using a NOAEL.
User Support
Other User Documents
Availability of User Support
Yes, HED has a users group that meets regularly.
User Qualifications
Some background in residue chemistry, an understanding of the basic commodity relationship as ingredient in recipes, and an understanding of toxicology with regards to risk assessment.

Model Science Back to Top
Problem Identification
Food Quality Protection Act.
Summary of Model Structure and Methods
Model Evaluation
Key Limitations to Model Scope
No limitations really yet, except that some chemicals have shorter than one day for recovery for some endpoints.
Case Studies
Many of the chemicals found in this list have had their dietary exposure estimated using DEEM.


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