An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

EPA ExpoBox

EPA ExpoBox Toolbox Search

Search the Toolbox

Use the advanced search interface to search an 700+ collection of tools for performing exposure assessments. The results will display a list of tools with a brief description.

Search the Exposure Factors Tables

EPA ExpoBox contains a module on exposure factors which includes:

  • Bookmarked chapters of the Exposure Factors Handbook: 2011 Edition
  • Highlights and recommendations for each exposure factor
  • Data tables in downloadable Excel spreadsheet format
  • References that may be accessed via EPA’s Health and Environmental Research Online (HERO) database

You can also search the exposure factor report tables:

Top of Page