Toxics Release Inventory (TRI) Program

Descriptions of TRI Data Terms

This webpage explains the terms that EPA uses to describe toxic chemical releases and other waste management quantities reported under the TRI Program, and indicates where on the TRI Form R they are reported. Click on any image and the description for that term will be displayed. 

Please note that the descriptions on this webpage have been simplified for educational purposes and should not be relied upon to determine a facility’s TRI reporting obligations. See the most recent Reporting Forms and Instructions document for extensive reporting guidance.

See a text-only version of the interactive content on this page

        On-site Releases and Other Waste Management
 
 
Air
Surface Water
Land
Recycling
Energy Recovery
Treatment
                         
               
TRI Facility
 
 
 
 
 
Transfers
           Off-site Transfers of Toxic Chemicals in Waste
     
     
Disposal
Recycling
Energy Recovery
Treatment
POTWs