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Factors to Consider When Using Toxics Release Inventory Data

Factors to Consider When Using TRI Data is EPA's primary guide to understanding and using Toxics Release Inventory (TRI) data. In 2022, EPA revised the document to be clearer and more concise. EPA is currently developing a more technical companion guide for researchers and analysts.

Factors to Consider When Using TRI Data (2022) (pdf)
Factores a considerar cuando se utilizan los datos del TRI (pdf) (5/26/22)

Older Versions:

Factors to Consider When Using TRI Data (pdf) (3/19/19)