Sentence examples for has contaminated large from inspiring English sources

But toxic pollution from Hunan's mines and heavy metal plants has contaminated large tracts of its once-fertile farmland and put China's staple food supply at risk.

In Tyrol, Austria, molybdenum pollution is caused by industrial effluents and has contaminated large pasture areas, reaching as high as 200 ppm causing scouring in ruminants [ 21].

"The food industry is very concerned that StarLink has contaminated a larger portion of the grain supply," one government official involved in the matter said.

For decades, human industrial activities have emitted large amounts of mercury in the air, which then settles in our waters and has contaminated some fish and shellfish.

Fracking has contaminated water supplies.

Those from Iraq have a reputation for being larger, but in recent years their cachet has fallen due to unverified suspicions that fallout from American weapons has contaminated them.

"Toxic greed has contaminated the minds of human society.

The Rover has contaminated water in at least three states".

French media outlets later revealed that the more than 180 above- and underground tests there had contaminated a much larger area than Paris previously admitted.

Semiconductor fabrication plants have to be kept spotlessly clean, but on the night of the fire, when staff were rushing around and firemen were tramping in and out, smoke and soot had contaminated a much larger area of the plant than had first been thought.

Had we aimed to cover all known motifs we would have contaminated the filtered set with a large number of false positives.