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