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Toxics Release Inventory (TRI) Program

2016 TRI Preliminary Dataset: TEQ Data Files

Dioxin and dioxin-like compounds data are reported on the Toxics Release Inventory (TRI) Reporting Form R Schedule 1. There are 17 distinct members of this chemical category on the TRI list. Facilities that have any of the information required by Reporting Form R Schedule 1 must submit individual dioxin member data via the Reporting Form R Schedule 1 in addition to the Reporting Form R.

To account for how dioxin and dioxin-like 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 TEQs Data Files are:

Note: Quantities of dioxin and dioxin-like compounds are reported in grams.

The data contained in these files are presented in .csv (comma-separated value) file format. The complete 2016 TRI dataset is now available. This dataset will be the basis for the 2016 TRI National Analysis, planned for publication in January 2018. For more information about using these files, see the TRI TEQ Data File Documentation.