But last summer Lockheed discovered toxic contamination beneath the concrete floor of the hangar.

The Federal Government announced today that it would buy the trailer homes in a park where toxic contamination has been discovered.

Experts have predicted that it will take 300 years to clean up the toxic contamination.

His Draeger was worn underneath so he could breathe through its mouthpiece without risk of toxic contamination.

This study is focusing primarily on two marine pollution problems in the Sound, oxygen depletion and toxic contamination.

One 2004 report to city council estimated a $4 million cost to restore the building and clean up toxic contamination of the surrounding grounds.

The Superfund was created to clean up sites of serious toxic contamination across the state.

Reduce toxic contamination to protect public health and the Lake Champlain ecosystem.

These restorations will reduce toxic contamination and protect human health in the Basin.

Captain Carricato said that the military was dealing with toxic contamination on "a worst-first basis."