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  1. Home
  2. Air: Fate, Exposure, and Risk Analysis (FERA)

Risk Assessment and Modeling - Ozone Risk Analyses

Risk Assessment and Modeling
  • General Information
  • Air Toxics Risk Assessment
  • Criteria Air Pollutant Risk Assessment
    • Ozone Risk Analysis
  • Human Exposure Model (HEM)
  • Links to EPA Risk Assessment Policy, Guidelines, and Related Materials

Health Risk Assessment

Assessments Completed in 2020

  • Full technical detail of assessments and methods reported in Policy Assessment for 2020 NAAQS review (pdf) (19.8 MB). See Appendices 3C and 3D and Chapter 3.

Assessments Completed in 2014

  • Technical report describing assessments and methodologies
  • Program and input files used in the risk assessments based on air quality modeling and epidemiological study-based concentration-response functions are not available for interactive download. For questions regarding these files, contact Zachary Pekar via email at pekar.zachary@epa.gov

Assessments Completed in 2007

  • Technical Support Document describing assessment and methodology
  • Users Guide for TRIM.RiskHuman Health-Probabilistic Application for the Ozone NAAQS Risk Assessment
  • Program and input files used in the Health Risk Assessment: Because of the number and size of the program and data files, they are not available for interactive download. To receive a DVD containing all of the code and data files, contact Zachary Pekar via email at pekar.zachary@epa.gov

Assessments for Review Completed in 1997

Welfare Risk Assessments

Assessments Completed in 2014

  • Technical report describing assessments and methodologies

Exposure, Risk, and Impact Assessments Completed in 2007

  • Technical Report on Ozone Exposure, Risk and Impact Assessments for Vegetation
  • User’s Guide to Reproduce Calculations in: Technical Report on Ozone Exposure, Risk and Impact Assessments for Vegetation
  • Code files and input data files used in the analyses: The User’s Guide DVD provides the actual code files and input data files used in the analysis.  Because many of the data files are extremely large, they are not available for interactive download. To receive a DVD containing all of the code and data files, contact Vicki Sandiford via email at sandiford.vicki@epa.gov.

Air: Fate, Exposure, and Risk Analysis (FERA)

  • Total Risk Integrated Methodology (TRIM)
    • TRIM.FaTE
    • TRIM.Expo
    • TRIM.Risk
    • Peer Review and Publications
  • Multimedia Fate and Transport Modeling
    • TRIM.FaTE
    • Other Models and Related Information
  • Human Exposure Assessment and Modeling
    • Criteria Air Pollutant Exposure Assessment
    • Databases to Support Exposure Modeling
    • Air Pollutants Exposure Model (APEX/ TRIM.Expo Inhalation)
    • Hazardous Air Pollutant Exposure Model (HAPEM)
    • Other Models and Exposure-Related Information
  • Risk Assessment and Modeling
    • Air Toxics Risk Assessment
    • Criteria Air Pollutant Risk Assessment
    • Human Exposure Model (HEM)
    • EPA Risk Assessment Policy, Guidelines, and Related Materials
Contact Us about FERA
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 3, 2025
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