20 CFC's are 4-8 times heavier than air, so how can they reach the stratosphere?
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This article is from the Ozone Depletion: Stratospheric Chlorine and Bromine FAQ, by Robert Parson rparson@spot.colorado.edu with numerous contributions by others.
20 CFC's are 4-8 times heavier than air, so how can they reach the stratosphere?
This is answered in Part I of this FAQ, section 1.3. Briefly,
atmospheric gases do not segragate by weight in the troposphere
and the stratosphere, because the mixing mechanisms (convection,
"eddy diffusion") do not distinguish molecular masses.
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