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11 How is ozone distributed in the stratosphere? |
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11 How is ozone distributed in the stratosphere? |
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This article is from the Ozone Depletion FAQ, by Robert Parson rparson@spot.colorado.edu with numerous contributions by others.
In absolute terms: about 10^12 molecules/cm^3 at 15 km, rising to
nearly 10^13 at 25 km, then falling to 10^11 at 45 km.
In relative terms: ~0.5 parts per million by volume (ppmv) at 15 km,
rising to ~8 ppmv at ~35 km, falling to ~3 ppmv at 45 km.
Even in the thickest part of the layer, ozone is a trace gas. In all,
there are about 3 billion metric tons, or 3x10^15 grams, of ozone in
the earth's atmosphere; about 90% of this is in the stratosphere.
Continue to:
science, engineering, ozone layer, Chloro Fluoro Carbons, CFC, stratosphere, depletion
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