The Indirect Dietary Residential Exposure Assessment Model (IDREAM) was developed to estimate acute and chronic indirect ingestion exposure that can result from use of disinfectants and sanitizers on kitchen surfaces in residential settings. It provides guidance for estimating these exposures where there may be inadvertent transfer of residue to edible items prepared on surfaces treated with these pesticides.
IDREAM was developed by the American Chemistry Council Biocides Panel in response to a need identified by EPA. Following a series of reviews and revisions, we determined that the model is appropriate for regulatory use.
Assumptions used in IDREAM are based on behavior of consumers using hard-surface disinfectants and sanitizers in the home, including how such products are used and how consumers prepare food in the home. It categorizes foods based on physical form and likelihood of countertop contact incorporating several significant protective assumptions.
This guidance is not applicable outside of those settings or for any other type of exposures.
The calculation of the estimated exposure for Tiers 2 and 3 uses a spreadsheet where only very limited data entry results in automatic calculation (version: June 26, 2015)
General Overview of IDREAM
Brief Overview of Assessment Tiers
Subpopulations of Interest
Food Ingredient Classification
Additional Background Information About Tier 2 and Tier 3 Assessments
Getting Started: Performing a Tier 2 Assessment
Getting Started: Performing a Tier 3 Assessment
This memorandum includes discussion of issues raised during the review of earlier versions of this model and responses to those issues.
- IDREAM - Indirect Ingestion Exposure (XLSX)(1 pg, 139 K)
- Indirect Dietary Residential Exposure Assessment Model (IDREAM) User Guide (PDF)(20 pp, 572 K)
- IDREAM Memorandum (PDF)(14 pp, 3 MB)