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Risk Assessment

  • Integrated Exposure Uptake Biokinetic (IEUBK) Model for Lead in Children

    EPA announces the availability of the final report, Advancing Pb Exposure and Biokinetic Modeling for U.S. EPA Regulatory Decisions and Site Assessments Using Bunker Hill Mining and Metallurgical Complex Superfund Site Data.

    Learn about Lead at Superfund Sites | Read the IEUBK Final Report

  • Lead Awareness

    Strengthened Dust-Lead Clearance Levels to Protect Children from Lead Exposure

    • Learn more about clearance levels and the final rule.
    • Read the press release.
  • Enhanced Aquifer Recharge (EAR)

    EPA announces the availability of the  final report, Enhanced Aquifer Recharge  of Stormwater in the United States: State of the Science Review. This report

  • Regional Screening Levels (RSLs) Tables

    In Nov 2021, EPA's RSL tables were updated to provide comparison values for residential and commercial/industrial exposures to soil, air, and tapwater (drinking water). Read about the new additions of the regional screening level tables

What is Risk?  EPA uses risk assessment to characterize the nature and magnitude of health risks to humans and ecological receptors from chemical contaminants and other stressors that may be present in the environment. Learn more about risk under the links below:

Learn about Risk Assessment

  • What is Risk?
  • History of Risk Assessment at EPA
  • Getting Help with Risk Assessment Issues
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  • Where You Live

Human Health Risk Assessments

  • Basic Information
  • Conducting a Human Health Risk Assessment
  • Human Health Risk Assessment Guidance
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  • Human Health Risk Assessment Products and Publications

Ecological Risk Assessments

  • Basic Information
  • Conducting an Ecological Risk Assessment
  • Ecological Risk Assessment Guidance
  • Ecological Risk Assessment Tools and Databases
  • Ecological Risk Assessment Products and Publications

Staying Connected

Explore EPA's on-going RISK activities in our recent additions section.


Subscribe to the RISK Bulletin to get the latest updates.

Resources for Environmental Professionals

  • Food Waste Research
  • Global Change Assessments and Research
  • Integrated Risk Information System (IRIS)
  • Regional Removal Management Levels For Chemicals (RMLs)
  • Regional Screening Levels (RSLs)
  • Risk Assessment on Pesticides | Pesticide Registration Manual
  • Superfund Risk Assessments | Cleaning up Superfund Sites
  • Scientific Integrity at EPA

Recent Risk Assessment Announcements

  • IRIS Assessment of Ethyl Tertiary Butyl Ether (ETBE) - Final Report
  • IRIS Assessment of tert-Butyl Alcohol (tert-butanol) - Final Report
  • IRIS Assessment for Perfluorobutanoic Acid (PFBA) (External Review Draft) - Closes Oct 22nd 
  • Enhanced Aquifer Recharge (EAR) Final Report
  • Integrated Exposure Uptake Biokinetic (IEUBK) Model for Lead in Children  

More announcements

Search RISK

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Search Risk Human Health Publications | Search Risk Ecological Publication

Risk Calendar & Events

  • 05/06/2022: SAB PFAS Panel Review Meeting
  • 05/26/2022: Lead ISA Workshop on Preliminary Draft Materials: Session 1
  • 06/07/2022: Lead ISA Workshop on Preliminary Draft Materials: Session 2
  • 06/08/2022: Public Meeting of the CASAC Ozone Panel
  • 06/10/2022: Public Meeting of the CASAC Ozone Panel
  • 06/13/2022: Public Meeting of the CASAC Ozone Panel
  • 06/17/2022: Public Meeting of the CASAC Ozone Panel
  • 06/22/2022: Lead ISA Workshop on Preliminary Draft Materials: Session 3
  • 06/29/2022: Lead ISA Workshop on Preliminary Draft Materials: Session 4
  • On-going: EPA's Science Advisory Board Activities and Calendar of Events
  • On-going: EPA's Research Monthly Webinar Series
  • On-going: Society for Risk Assessment Podcasts: Let's talk Risk
  • Monthly: EPA's Research and Science Calendar
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Last updated on May 6, 2022