In this way, 581 cubic meters of highly contaminated sludge were produced.

It cannot be used to clean highly contaminated sites, however, like those with more than 1 percent lead in their soil.

The ground water surrounding the lake was also found to be highly contaminated and created serious health hazards.

The sediment in this area of the river is highly contaminated with dioxin, which can cause serious health effects, including cancer.

Now the abandoned town is highly contaminated by radiation.

Children of women whose milk is highly contaminated might show such effects after four or five months, the newspaper said.

The plants used may not be able to grow in highly contaminated areas.

The problem of cleaning up more highly contaminated water near the reactor has not been resolved.

However, since they are often used on surfaces which are already highly contaminated, the need may be less than at first thought.

During the spot cleaning the robot circles around small, highly contaminated area.