According to the story, dioxins are toxic byproducts from manufacturing chemicals and in 2003, the EPA labeled some dioxins as cancer-causing and said virtually any level of exposure posed at least some danger.
Dow, which acknowledges responsibility for polluting the region for much of the 20th century, has spent about $40 million on studies, sediment sampling and other preliminary work, including removing tainted soil from a number of "hot spots" with particularly high dioxin readings, the story stated.
Dow claims the pollution has not harmed people or wildlife and has been arguing with regulators since the 1990s over how to design a comprehensive cleanup, the story noted.
The area to be cleaned includes land in the City of Midland
near a Dow plant, along with the Tittabawassee and Saginaw rivers and Lake Huron''s Saginaw Bay, the story added.