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(From page 2) nose but is believed to be well below the level of health effects. It is, of course, possible under unusal meteorological conditions for the plume from the tall stacks, to maintain its integrity much further than one mile from the plant, to travel over a distance of 40-70 miles. However, the chances of this occurring are remote.
Hydrogen sulfide is another sulfur based pollutant from the plant process. It is possible to measure H2S via gas chromatography down to the 10 to 20 parts per billion range. The human nose can detect H-2S down to the one part per billion range. Measuring instruments employed by the U.S. Environmental Protection Agency indicate the level has been below the 10 to 20 parts billion range, confirming that only the nose knows.
The source of SO-2 emissions are the boilers used to generate electricity and steam for the plant. From 1969 through 1974, FMCFront Royal will have expended an excess of $12, 000,000 on capital equipment improvement. This includes among other things, conversion of six
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