Toxics Release Inventory (TRI) Program

2015 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 Form R Schedule 1 must submit individual dioxin member data via the Form R Schedule 1 in addition to the Form R.
Note: Quantities of dioxin and dioxin-like compounds are reported in grams.

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 data contained in these files are presented in .csv ("Comma Separated Value") file format. These files will be updated several times between July and September as more reporting year 2015 TRI submissions are processed. For more information about using these files, see the TRI TEQ Data File Documentation.

The TEQs Data Files are: