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EPA ExpoBox (A Toolbox for Exposure Assessors)

  • ExpoFIRST Scenarios Tool

    ExpoFIRST (Version 2.1) helps to quickly and easily create scenarios where people might come into contact with harmful chemicals and pathogens. 
  • EPA ExpoKids

    ExpoKids is a tool that shows how much people might be exposed to certain chemicals or pathogens at different stages of life. 
  • EPA ExpoBox

    Learn more about ExpoBox from the six topic areas below. Or Search the Toolbox to find the latest tools and resources.
  • EPA EcoBox

    ExpoBox users, did you know there is also a Toolbox for Ecological Risk Assessors?

EPA’s EXPOsure toolBOX is a toolbox that helps people assess environmental exposure to harmful chemicals and pathogens. It is a collection of tools that links to different resources. EPA ExpoBox is organized based on the six tool sets listed below.  

Approaches

  • Approaches
    • Direct Measurement (Point-of-Contact)
    • Indirect Estimation (Scenario Evaluation)
    • Exposure Reconstruction (Biomonitoring and Reverse Dosimetry)

Media

  • Media
    • Air
    • Water and Sediment
    • Soil and Dust
    • Food
    • Aquatic Biota
    • Consumer Products

Routes

  • Routes
    • Inhalation
    • Ingestion
    • Dermal

Learn More

  • Basic Information
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Tiers and Types

  • Tiers and Types
    • Screening-Level and Refined
    • Deterministic and Probabilistic
    • Aggregate and Cumulative

Lifestages and Populations

  • Lifestages and Populations
    • General Population
    • Residential Consumer
    • Occupational Workers
    • Lifestages
    • Highly Exposed

Chemical Classes

  • Chemical Classes
    • Pesticides
    • Other Organics
    • Inorganics and Fibers
    • Nanomaterials

Other Tools

  • Exposure Factors
  • ExpoFIRST
  • Tutorials
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  • Unit Conversions
  • Uncertainty and Variability
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 14, 2025
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