TRI Data and Tools
The Toxics Release Inventory (TRI) Program tracks the industrial management of toxic chemicals that may pose a threat to human health and the environment. The data facilities submit to EPA are available here in multiple ways. For information about the steps EPA takes to optimize the quality of TRI data, see the TRI Data Quality webpage.
NOTICE: In early 2019, EPA learned that two TRI queries available in EPA’s Envirofacts database regarding off-site transfers of nonmetallic chemicals to Publicly Owned Treatment Works (POTWs) had not been updated with more accurate default assumptions regarding POTW treatment efficiencies. EPA updated the two queries within days of the discovery. Prior to the updates, between July 15, 2015, and March 20, 2019, it is possible that TRI data users accessing the 2014-2017 TRI datasets through Envirofacts queries that specifically related to off-site transfers to POTWs could have received data based on the previous default assumptions regarding POTW treatment efficiencies. Searches done during this time may be redone to make sure the results reflect the current default assumptions for non-metals sent off site to POTWs. For more information, please see the EPA Office of Inspector General's webpage about the issue.
More Ways to Get TRI Data and Help Using TRI
Download data from TRI reporting forms for any reporting year since 1987. Recommended for users with extensive knowledge of TRI data.
- Basic Data Files: Frequently requested data elements. National, federal, tribal and state-level data files grouped by reporting year.
- Basic Plus Data Files: National-level data files containing all data elements reported on the Reporting Form R, grouped by reporting year.
- Dioxin, Dioxin-Like Compounds and TEQ Data Files: Dioxin mass quantity data reported on Reporting Form R Schedule 1, with associated Toxic Equivalency data elements. National-level data files by current reporting year.
Use TRI data in conjunction with other EPA data sources for comparative analysis.
- DMR (Discharge Monitoring Report) and TRI Comparison Dashboard: Compare DMR and TRI release data. Determine what pollutants are being discharged into waterways, and by which companies.
- Enforcement and Compliance History Online (ECHO): Search EPA and state compliance and enforcement records for air, water, and hazardous waste regulations, including contextual data for TRI and other programs.
- Enviromapper: Generate maps that contain environmental information, including TRI information. Add features such as schools, streets, and water bodies to view the information in context.
- TRI-CHIP (TRI Chemical Hazard Information Profiles): Access and analyze toxicity information from multiple data sources for chemicals included on the TRI list.
- Explore a TRI Facility: Learn about TRI terms and concepts in the context of a fictional TRI facility.
- Descriptions of TRI Data Terms: An interactive webpage defines common TRI terms and indicates where to find them on the TRI reporting form.
- TRI metadata: Get reference information to support use and understanding of TRI data. Includes lists of chemical categories, associated health effects, covered industry codes, and codes used on reporting forms.
- The TRI for Researchers webpage summarizes the most important considerations for using TRI data.
- The Guides and Tutorials webpage can help you learn to use some of the TRI tools.
- Factors to Consider When Using TRI, available in English and Spanish, can help you understand TRI data.
- The TRI Data Analysis Tools brochure, available in English and Spanish, gives an overview of the available TRI tools.