Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Risk-Screening Environmental Indicators (RSEI) Model

Risk-Screening Environmental Indicators (RSEI) Technical Appendices Version 2.3.9

These six technical appendices accompany the RSEI Methodology Document for Version 2.3.9, December 2020, and provide additional information on the data and methods used in the model.

  • Technical Appendix A - Toxicity Weights for TRI Chemicals and Chemical Categories, v2.3.9 (pdf) (564.77 KB, December 2020)
    Toxicity Information for Version 2.3.9 of Risk-Screening Environmental Indicators (RSEI) Model
  • Technical Appendix B - Physicochemical Properties for TRI Chemicals and Chemical Categories, v2.3.9 (pdf) (750.44 KB, December 2020)
    Physico-chemical properties for RSEI chemicals
  • Technical Appendix C - Derivation of Model Exposure Parameters, v2.3.9 (pdf) (668.7 KB, December 2020)
    Exposure information for the RSEI model
  • Technical Appendix D - Locational Data for TRI Reporting Facilities and Off-site Facilities, v2.3.9 (pdf) (552.71 KB, December 2020)
    Locational information for facilities included in the RSEI model
  • Technical Appendix E - Derivation of Stack Parameter Data, v2.3.9 (pdf) (506.19 KB, December 2020)
    Parameters for modeling of stack air releases for the RSEI modeling.
  • Technical Appendix F - Summary of Differences between RSEI Data and the TRI National Analysis, v2.3.9 (pdf) (380.8 KB, December 2020)
    Summary of differences in data between the RSEI model and the Toxics Release Inventory data

Risk-Screening Environmental Indicators (RSEI) Model

  • TRI Program Home
  • Learn About RSEI
    • How RSEI Should Be Used
  • Understanding RSEI Results
    • RSEI & TRI Emissions Data
    • EasyRSEI Basics
    • RSEI Geographic Microdata
  • Ways to Get RSEI Results
    • RSEI Results Map
    • EasyRSEI Dashboard
  • RSEI Data & Modeling
  • RSEI Toxicity Weights
  • Documentation and Help
    • EasyRSEI Online Help
    • RSEI Queries
    • RSEI Data Dictionary
    • RSEI Bibliography
    • Glossary
Contact Us About the RSEI Model
Contact Us About the RSEI Model to ask a question, provide feedback, or report a problem.
Last updated on December 18, 2024
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.