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The development of the latest version of the Exposure Factors Handbook (EFH): 2011 Edition (EPA/600/R-09/052F) has maintained the need for a more comprehensive program that addresses issues related to exposure factors. Since the first version of the EFH was released in 1997, the need for the most up-to-date and accurate data on exposure factors used in assessing exposure to contaminants in the environment is of high priority to exposure assessors throughout the U.S. The completion of the 2011 edition of the Exposure Factors Handbook has only been the first step in fulfilling this need. Many data needs have been identified and follow up research is underway to address some of the data gaps. This web page is intended to provide a "one-stop-shop" where the most current information and data on exposure factors can be found.

Exposure Factors Handbook

• Exposure Factors Handbook: 2011 Edition
• Highlights of the Exposure Factors Handbook (2011 Final Report)
• Child-Specific Exposure Factors Handbook (2008 Final Report)
• Highlights of the Child-Specific Exposure Factors Handbook (2009)
• Guide to Current Literature
• Frequently Asked Questions

Exposure Factors Research

• Aging Workshop Report
• Food Intake Analysis
• Fat Intake Analysis
• Guidance on Selecting Age Groups for Children Studies
• Human Ventilation Rates
• Indoor Air Exposures
• Sociodemographic Data
• Soil Intake Rates for both Adults and Children
• Soil Intake Rates Based on Arsenic in Urine
• Soil Ingestion Colloquium - Appendix

Archives

• Exposure Factors Handbook (1997)
• Example Exposure Scenarios Assessment Tool
• Exposure Factors Distributions (based on the 1997 EFH)
• Exposure Factors Finder CD-ROM (based on the 1997 EFH)
• CSFII Analysis of Food Intake Distributions (based on the 1997 EFH)