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Toxics Release Inventory (TRI) Program

TRI for Tribal Communities

Toxics Release Inventory (TRI) data allow tribes to identify sources of toxic chemical releases that may impact the health of their communities, track changes in these releases over time, and prioritize efforts to reduce pollution from nearby facilities.


The TRI Tribal Search below provides interactive charts to easily access summary-level data about industrial toxic releases from TRI facilities located on or within 10 miles of tribal lands. For tips on how to use the Tribal Search , see the factsheet above.

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How many TRI facilities are on tribal lands?

In 2019, there were 42 facilities located on tribal lands associated with 19 different federally recognized tribes. These facilities reported a total of 7 million pounds of releases, more than 99% of which were on-site releases to air, water, or land.

Lists of Tribes and Facilities in 2019

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How can tribes access more in-depth TRI data?

  • Use the TRI Tribal Advanced Search Dashboard to:
    • view an extensive set of interactive charts about TRI reporting on or near tribal lands,
    • search for specific tribe(s), and
    • better understand releases from TRI facilities located near tribal communities.
  • Use the TRI Search tool to view:
    • a map of TRI facilities on or within 10 miles of a particular tribe's lands, and
    • summary-level TRI facility data, including quantities of chemicals released.

There are other online TRI tools as well as resources for understanding and using the data. See the full list on the TRI Data and Tools webpage.

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Are tribes at risk from toxic chemical releases on or near their lands?

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The answer depends on many factors, such as:
  • the toxicity of the chemical(s) released,
  • the quantity of the chemical(s) released,
  • the route of exposure (air, water, land),
  • how often a person was exposed, and
  • the fate of the chemical in the environment.

TRI has some of this information. TRI data provide estimates of quantities of toxic chemicals that are released to the environment, as well as information on how those chemicals are managed prior to or instead of being released. These data can be used to identify potential toxic chemical hazards near tribes; however, release estimates alone are not sufficient to determine exposure or to calculate potential risks to human health and the environment.

To estimate immediate or long-term risks in your community, TRI data should be combined with other information, such as the toxicity of the chemical and the chemical's transportation and fate. Find out more about TRI and estimating potential risk, or browse Factors to Consider When Using TRI Data.

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Is there help available for tribes concerned about toxic chemical releases?

Yes, a variety of resources are available to assist tribes.

Tribal Contacts

  • TRI Tribal Contacts: Find the environmental officials designated by federally recognized tribes to receive reporting forms from TRI facilities located on the lands of federally recognized tribes.

  • TRI Program Regional Coordinators: Tribes concerned about toxic chemicals released from specific industrial facilities may contact the TRI Coordinator in their region.
  • EPA Tribal Program Managers: Tribes are encouraged to contact the Tribal Program Manager in their region with questions about facilities near tribal communities.
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Online Tools

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