Toxicity identification evaluations (TIEs) conducted at the most toxic sites indicated that toxicity was largely due to trace metals, most likely copper.
Take the crucial legislation to clean up the state's most toxic sites.
Its mission was to clean up toxic sites, especially in poorer urban areas.
He also wants to make the standards for cleaning up toxic sites more flexible.
The US has an estimated 100,000-300,000 toxic sites, mainly factories or industrial areas, but toxic sites in the low- and middle-income countries assessed in the report are often in residential areas.
"We've investigated 2,600 toxic sites in the last four years, [but] we know there are far more".
Money for the Superfund program, which cleans up the most toxic sites of all, would be slashed by a third.
As a nation we said we would clean up toxic sites -- and the polluters, not the American people, would pay.
(You could spend a lifetime visiting toxic sites in the former Soviet Union, for example).
The Department of Defence has been forced to spend billions of dollars to clean up toxic sites.
Waste from mining, lead smelters, industrial dumps and other toxic sites affects the health of an estimated 125 million people in 49 low- and middle-income countries.
