Risk Assessment

  • EcoRisk Portal

    EPA’s new EcoRisk Portal provides one-stop, centralized access to publicly-available EPA guidelines, training, and technical resources to help ecological risk assessors in their day-to-day efforts to conduct risk assessments that reflect EPA’s statutory regulations. 

    Access the new EcoRisk Portal.

  • Guidelines for Cumulative Risk Assessment Planning and Problem Formulation

    This new document describes the planning and problem formulation steps of cumulative risk assessments (CRAs) and offers considerations for when such assessments might be appropriate. 

    Learn More

  • Regional Screening Levels (RSLs) Tables

    In Sep 2024, EPA's RSL tables were updated to provide the latest comparison values for residential and commercial/industrial exposures to soil, air, and tapwater (drinking water). Read about the recent additions of the regional screening level tables

  • All-Ages Lead Model, Version 3.0 Released

    In April 2024, EPA announced the release of the the All Ages Lead Model (AALM) which rapidly estimates the effect of exposures on lead concentrations in tissues of children and adults; can assess exposures of a day or more, as well as chronic exposures; and can be applied to specific individuals or to groups of similarly exposed individuals.  

    Learn more about the All Ages Lead Model (AALM)

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:

Staying Connected

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

Subscribe to the RISK Bulletin to get the latest updates.

Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 10, 2025