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The EPS production poses no threat to the
ozone layer, pentane, the blowing agent used in EPS contains
no ozone-depleting substances and the amount released during
manufacture is only about 0.2 percent of the total man-made
emissions of volatile organic compounds (VOC's). It actually
is a naturally occurring chemical like methane. It is also continually
being formed by natural processes; for example in the digestive
tracts of animals and by the anaerobic decomposition of plant
matter. |
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It also has a low stability and under the
influence of humidity and atmospheric radiation (especially
UV light) it is quickly converted into carbon dioxide and water.
Because of its low stability, pentane cannot reach the higher
(stratospheric) atmospheric levels and therefore does not contribute
to ozone depletion (unlike chlorinated blowing agents such as
CFC's and HCFC's). Additionally pentane does not contribute
directly to the "greenhouse" effect. |
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