>Gregory Mitch Daughtry wrote " O1 would be ozone, the stuff that is created 
when fluorocarbons >released from aerosol cans combine with O2.  Ozone is 
much lighter than O2, that's why it rises way up >there and floats. Hence 
the much touted ozone layer.  So maybe in that sense it is not a condensed 
>version, it's the run of the mill oxygen that we all enjoy so much."

Actually, O3 is ozone, and that makes it heavier than O2.  I'll stop 
here....

Tim Casey
Environmental Scientist
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