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Toxics Release Inventory (TRI) Program

TRI Dioxin and Dioxin-like Compounds and TEQ Data Files: Calendar Years 2008 - 2013

Dioxin and dioxin-like compounds data are reported on the TRI Reporting Form R Schedule 1. There are seventeen distinct members of this chemical category listed under TRI. In addition to the total grams released for the entire category, facilities must report the quantity for each individual member.

Although useful, total releases are not the best measure of the actual toxicity of these compounds because each compound has its own level of toxicity. To account for how compounds vary in toxicity, EPA calculates weighted values called toxic equivalents (TEQs) from the individual mass quantity data reported by facilities and the associated Toxic Equivalency Factors (TEFs). TEQs allow for a better understanding of the toxicity of releases and waste management activities at facilities that report to the TRI Program.

The data contained in these files are presented in comma delimited ASCII text bundled into a .zip format. For more information about using these files, see the TRI TEQ Data Files Guide (PDF).

2008

The types of Dioxin and Dioxin-like Compounds and TEQs Data Files are:

2009

The types of Dioxin and Dioxin-like Compounds and TEQs Data Files are:

2010

The types of Dioxin and Dioxin-like Compounds and TEQs Data Files are:

2011

The types of Dioxin and Dioxin-like Compounds and TEQs Data Files are:

2012

The types of Dioxin and Dioxin-like Compounds and TEQs Data Files are:

2013

The types of Dioxin and Dioxin-like Compounds and TEQs Data Files are:

This webpage contains the most recent versions of all TRI data files; facilities may revise previous years' TRI submissions if necessary, and any such changes will be reflected in these files. For this reason, data contained in these files may differ from data used to construct the TRI National Analysis.