He charges that the former railyards are seriously contaminated with petroleum hydrocarbons.

No irradiation of workers or the population occurred, though the cavern containing the reactor was seriously contaminated.

All along this nation's vast coast, where most of the population lives, bays, lagoons and other coastal waters are becoming seriously contaminated, experts say.

More than 60 people were seriously contaminated.

To begin with, as carcasses once eaten by vultures now rot in village fields, drinking water has become seriously contaminated.

But nearly 20 other trees, all outside the 100-year-old private park, are seriously contaminated and will have to be cleaned, Mr. Walden said.

In 1994 it was reported that 21% of the factory premises were seriously contaminated with chemicals.

Many people in the area there fear the region has been seriously contaminated.

Since 2003, the local authorities restricted cultivation of crops because the soil has been seriously contaminated by kepone.

So far, though, neither country's problems have seriously contaminated its neighbors' economies.