Health & Environmental Research Online (HERO)

Print Feedback Export to File Download
Technical Report 
A framework for assessing health risk of environmental exposures to children 
U.S. Environmental Protection Agency :: U.S. EPA 
U.S. Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment 
Washington, DC 
EPA has released a final report entitled, A Framework for Assessing Health Risk of Environmental Exposures to Children, which examines the impact of potential exposures during developmental lifestages and subsequent lifestages, while emphasizing the iterative nature of the analysis phase with a multidisciplinary team.

Major findings and conclusions: This report outlines the framework in which mode of action(s) (MOA) can be considered across life stages. The framework is based upon existing approaches adopted in the Framework on Cumulative Risk Assessment and identifies existing guidance, guidelines and policy papers that relate to children's health risk assessment. It emphasizes the importance of an iterative approach between hazard, dose response, and exposure analyses. In addition, it includes discussion of principles for weight of evidence consideration across life stages for the hazard characterization database.

Key science/assessment issues:This framework addresses the questions of why and how an improved children's health risk assessment will strengthen the overall risk assessment process across the Agency. This approach improves the scientific explanation of children's risk and will add value by: 1) providing for a more complete evaluation of the potential for vulnerability at different life stages, including a focus on the underlying biological events and critical developmental periods for incorporating MOA considerations; 2) evaluating of the potential for toxicity after exposure during all developmental life stages; and 3) integrating of adverse health effects and exposure information across life stages. 
• Ammonia
     Literature Search – March 2012 (private)
     Literature Search Results
     Not Chemical Specific
          Guidance, notices
• Benzo(a)pyrene (BaP)
• Biphenyl
     Cited References
• tert-Butanol
     Cited in Document
• n-Butanol
     • Cited 2016 Public Comment Draft
          Tox Review
• tert-Butanol
     Cited in Public Comment Draft – May 2016
          Toxicological Review
• Chloroprene
     Cited 2009 Draft
     Cited 2010 Final
• DCM (Dichloromethane) (Final, 2011)
• 1,4-Dioxane - with inhalation update
     Final (2013)
     External Review Draft (2011)
• Dioxin (2012 Project Page for Final Report)
• Libby Amphibole Asbestos (Draft, 2011)
• Methanol (Non-Cancer)
     Cited in Final (2013)
     Cited in External Review Draft (2013)
     Cited in External Review Draft (2011)
• PCBs
     Cited (Nov 2012)
• RDX (121-82-4)
     Cited 2015 (private)
• Tetrachloroethylene (Perc) (Final, 2012)
• Trichloroacetic acid (TCA) (Final, 2011)
• Trichloroethylene (TCE) (Final, 2011)
     All References
• Trimethylbenzenes (TMB)
     Considered Studies
     Cited Studies
     Cited in Tox Review – Revised TMBs Draft
     Cited in Revised TMBs Draft - All
     Supplemental References
          Supporting References
• R5-MI STSC Request
• Exposure Factors Handbook (Post 2011)
     Chapter 1