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Breadcrumb

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

Risk Assessment and Modeling - Air Toxics

Risk Assessment and Modeling
  • Overview
  • Air Toxics Risk Assessment
  • Criteria Air Pollutant Risk Assessment
  • Human Exposure Model (HEM)
  • EPA Risk Assessment Policy, Guidelines, and Related Materials

Assessments

  • AirToxScreen – National-scale Air Toxics Screening Assessment
  • Local-Scale, Source- or Facility-Specific Assessments & Related Regulatory Decisions

Modeling Approaches for Human Health or Ecological Risk

  • TRIM.Risk
[Note: The following does not employ explicit activity-based human exposure modeling.]
  • Human Exposure Model (HEM)

Hazard and Dose-Response Information

  • OAQPS Toxicity Values
  • IRIS (Integrated Risk Information System)
  • US EPA Health Effects Notebook
  • ATSDR (Agency for Toxic Substance & Disease Registry) Chemical-specific FAQs, Public Health Statements & Toxicological Profiles 

References

  • Air Toxics Risk Assessment Reference Library
  • Methods for Derivation of RfCs & Application of Inhalation Dosimetry (USEPA 1994)
  • Review of Reference Dose and Reference Concentration Processes (USEPA 2002)
    • Report: Advances in Inhalation Dosimetry of Upper Respiratory Tract (USEPA 2009)
    • Report: Advances in Inhalation Dosimetry for Gases with Lower Respiratory Tract and Systemic Effects (USEPA 2011)
    • Report: Advances in Inhalation Gas Dosimetry for Derivation of a Reference Concentration (RfC) and Use in Risk Assessment (USEPA 2012)
  • Graphical Arrays of Reference Values for Inhalation Exposures (USEPA 2009)
    • Additional Reference Value Arrays for Manganese, Benzene, Ethylbenzene, toluene and Xylene (USEPA 2013)
  • Residual Risk Report to Congress
  • Urban Air Toxics Reports to Congress

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 January 31, 2025
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