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  2. EPA ExpoBox

ExpoKids: Tools and Resources

  • ExpoKids Home
  • Background
  • Example Graphs & Data Visualizations
  • Tools and Resources

On this page:

  • Tools
    • ExpoKids R (Downloadable R Code)
    • Example Graphs & Data Visualizations
  • Resources
    • EPA Reports
    • Journal Articles

Tools

ExpoKids R (Downloadable R Code)

ExpoKids Version 1.0 is an R-based visualization tool that graphically illustrates estimates of relative exposure and aggregate exposure sources within and across lifestages. The R Code is available in the US EPA / ExpoKids repository on GitHub. 
 
Learn more about using R from the ExpoKids user guide and in the Dai et al., 2020 JESEE article.
 

Example Graphs & Data Visualizations

ExpoKids can generate five different graph types from loaded data;

  • Average Daily Dose (ADD) by lifestage
  • Lifetime Average Daily Dose (LADD) by lifestage
  • ADD for an individual exposure pathway by lifestage
  • LADD for an individual exposure pathway by lifestage
  • Percent ADD by lifestage

See the following illustrations of output samples of ExpoKids graphs based on the list above and the sample data table from the Supplementary Information file (below):

This chart illustrates the lifetime average daily dose of media across lifestages.
This chart illustrates the lifetime average daily dose of media across lifestages.
This chart illustrates the average daily dose of dairy across lifestages.
This chart illustrates the lifetime average daily dose of dairy across lifestages.
This chart illustrates the lifetime average daily dose percentage of media across lifestages.

Resources

EPA Reports

  • ExpoKids Version 1.0 User Guide from Dai et al. JESEE 2020 Supplementary Information File (pdf) (10/5/2020)

Journal Articles

  • ExpoKids: An R-Based Tool for Characterizing Aggregate Environmental Exposure During Childhood. M. Dai, S. Euling, L. Phillips, and G. Rice. JESEE, 2020. Available at: https://www.nature.com/articles/s41370-020-00265-6

EPA ExpoBox

  • Basic Information
  • Approaches
    • - Direct Measurement
    • - Exposure Reconstruction
    • - Indirect Estimation
  • Media
    • - Air
    • - Aquatic Biota
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    • - Water and Sediment
  • Routes
    • - Dermal
    • - Ingestion
    • - Inhalation
  • Tiers and Types
    • - Deterministic and Probabilistic
    • - Screening-Level and Refined
    • - Aggregate and Cumulative
  • Lifestages and Populations
    • - General Population
    • - Highly Exposed
    • - Lifestages
    • - Occupational Workers
    • - Residential Consumers
  • Chemical Classes
    • - Inorganics and Fibers
    • - Nanomaterials
    • - Other Organics
    • - Pesticides
  • Exposure Factors
  • Tutorials
  • Glossaries
  • Unit Conversion
  • Uncertainty and Variability
Contact Us about ExpoBox
Contact Us about ExpoBox to ask a question, provide feedback, or report a problem.
Last updated on October 2, 2026
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