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TRI National Analysis

Dioxin and Dioxin-like Compound Releases Trend

This graph shows the trend in the grams of dioxin and dioxin-like compounds disposed of or otherwise released by TRI-reporting facilities from 2010 to 2017.


Dioxin and dioxin-like compounds ("dioxins") are persistent, bioaccumulative, and toxic chemicals (PBTs) characterized by EPA as probable human carcinogens. Dioxins are the byproducts of many forms of combustion and several industrial chemical processes.

From 2010 to 2017:

  • Since 2010, dioxin releases increased by 102%.
    • This increase in dioxin releases is largely driven by increased on-site land disposal from a non-ferrous metal smelting and refining facility.

From 2016 to 2017:

  • Releases of dioxins decreased by 6%.
  • For 2017, most (52%) of the quantity released was disposed on site to land.

This page was published in March 2019 and uses the 2017 TRI National Analysis dataset made public in TRI Explorer in October 2018.

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