2011 TRI Public Data Release and Analysis | Region 10 | US EPA

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2011 TRI Public Data Release and Analysis

Interactive map of Region 10's TRI data

Interactive map of TRI data for counties in Idaho, Oregon, and Washington.

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Each year, EPA provides an anaylsis of the most recent data from the Toxics Release Inventory (TRI). On this page you will find reports for Alaska, Idaho, Oregon, and Washington. Read the 2011 TRI National Analysis

Regional Summary

In 2011, 730 facilities in Alaska, Idaho, Oregon and Washington reported a total of 1.1 billion pounds of toxic chemical releases, an increase of 23%, or 215 million pounds, from 2010.

Regional reports

State-by-state reports

Press releases

About the data

  • TRI data reflect the quantities of TRI chemicals that are disposed of, released to the environment, or managed (for example, treated, or recycled). TRI data do not include information about potential public exposure to chemicals.
  • 2011 data is the most current year of data available. TRI reports for 2011 were due on July 1, 2012.
  • Year-to-year data comparisons do not reflect changes in reporting requirements. For example, new chemicals and sectors have been added to TRI throughout the years that change the number of facilities that report and the amounts reported to TRI.
  • No adjustments were made to account for double counting of chemical releases that were disposed of in landfills or other waste management facilities. The facility that generated the chemical and the facility that received the chemical for disposal may have both reported the same amount.
Who Reports to TRI?

A facility is subject to TRI reporting requirements if all of the following three conditions are met:
  1. The facility has 10 or more full-time employee equivalents (20,000 work hours per year);
  2. The facility is classified under a reportable North American Industrial Classification System (NAICS) code;
  3. The facility manufactures, processes, or otherwise uses any of the listed TRI toxic chemicals in amounts greater than the threshold quantities in a calendar year.
Reporting thresholds for most TRI chemicals are 25,000 pounds for chemicals that are manufactured or processed, and 10,000 pounds for chemicals that are otherwise used. A few TRI chemicals that have been identified as Persistent Bioaccumulative and Toxic (PBT) chemicals have lower reporting thresholds.

Manufacturing industry sectors have been reporting their releases since 1987; federal facilities since 1994. In 1998, seven additional industry sectors began reporting their toxic chemical releases to EPA. These sectors are metal mining, coal mining, electricity generation, commercial hazardous waste treatment, solvent recovery, petroleum bulk terminals, and wholesale chemical distributors.

Facilities that report to TRI must submit reports by July 1st of each year. These reports contain information on chemicals released during the prior calendar year.

What is a release?

A TRI “release” is the amount of a TRI toxic chemical that is discharged or emitted by a facility to the environment. There are two major categories of releases: on-site and off-site. On-site releases occur at the facility and are categorized as: 1) air emissions, 2) discharges to surface water, 3) underground injections, or 4) releases or disposal to land. Off-site releases are transfers to other facilities for disposal, treatment, or recycling of the toxic chemical.

The actions that facilities take to dispose of or release TRI chemicals are generally regulated under other environmental laws, such as the Clean Air Act, the Clean Water Act, or the Resource Conservation and Recovery Act.

What does this data say about health effects of releases?

Users of TRI information should be aware that TRI data reflects releases and other waste management activities of chemicals, not whether, or to what degree, the public may have been exposed to those chemicals. In the TRI program, facilities report the amount (in pounds) of their chemical releases. To evaluate health risks, release data must be combined with information about chemical toxicity, site-specific conditions, and exposure. TRI information can be combined with additional information and tools to better identify potential health risks from industrial toxics releases. The TRI Risk-Screening Environmental Indicators (RSEI) software tool is one example of a tool that provides health risk information based on TRI data.

What are Persistent Bioaccumulative and Toxic (PBT) chemicals?

PBT chemicals are toxic chemicals that persist in the environment and bioaccumulate in food chains, posing risks to people and the environment. PBT chemicals are a subset of the TRI-listed chemicals that have more strict reporting requirements. Lead, mercury, polychlorinated biphenyl (PCBs), and dioxins are on the PBT chemical list. Learn more about PBTs


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URL: http://yosemite.epa.gov/R10/OWCM.NSF/TRI/2011data

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