The suit charges that the new rule will reduce mercury emissions to 15 tons a year from the current level of 48 tons.

By the 1920s average annual tonnage on the Royal Canal had reduced to 10,000 tons.

With the ban the opium was reduced to 185 metric tons.

However, the increase in taxes due to the Blocus in early 18th century reduced the export to 1000 tons.

Over 13 years almost 10,000 pounds of glass was ground and polished away reducing the weight of the mirror to 14.5 tons.

It would reduce the sludge to 300 tons a day, from 1,000.

The Soviet authorities said that by 1993 they hoped to reduce the annual figure to 290,000 tons.

The extra weight of this additional armor and equipment reduced the barge's load capacity to 40 tons.

It continued to deteriorate, and in 1935 the weight limit was reduced to two tons.

For 1932, they had been reduced significantly to 18.5 million tons, with even lower figure in Ukraine.