The EPA last week finalized its non-cancer science assessment for dioxins, which was last reviewed in the 1980s. Dioxins are toxic chemicals that naturally exist in the environment and can be released into the environment through forest fires, backyard burning of trash, certain industrial activities, and residue from past commercial burning of waste.

According to a statement released by the EPA, "generally, over a person’s lifetime, current exposure to dioxins does not pose a significant health risk."