An official website of the United States government.

Toxics Release Inventory (TRI) Program

Factors to Consider When Using Toxics Release Inventory Data

A guide to understanding and using TRI data, including important information about what the Toxics Release Inventory can and can't tell you.

Guía para la comprensión y el uso de los datos del TRI, incluyendo información importante sobre lo que el Inventario de Emisiones Tóxicas puede y no puede decirle.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.