Re: Endless Oil?
From: Bill Ward (bwardREMOVE_at_ix.netcom.com)
Date: 09/29/04
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Date: Wed, 29 Sep 2004 04:47:06 GMT
On Wed, 29 Sep 2004 02:58:45 GMT, Dan Bloomquist
<EXTRApublic21@lakeweb.com> wrote:
>
>
>Bill Ward wrote:
>>
>> The decomposition rate of ozone is only half the equation.
>> The production rate is equally important
>>
>> My understanding is that ozone (O3) is formed when short UV
>> hits O2 in the upper atmosphere. The UV is absorbed in the
>> process, thus reducing the amount reaching the surface.
>>
>> One thing about photochemical reactions is that they stop
>> when the lights go out. During winter at the poles, it's
>> continuously dark - no UV, no O3 formation..
>>
>> So why is anyone surprised when the [O3] drops during the
>> polar winter?
>>
>> Can someone fill me in on the production rate and lifetime
>> of the O3 layer without Freon? If the O3 layer were
>> somehow completely removed, how long would it take to be
>> reformed by the solar UV?
>
>Here is the first faq:
>http://www.faqs.org/faqs/ozone-depletion/intro/
>
>I think to start with, ozone does not want to be ozone. Leave it alone
>in a cold dark night and it may survive. Add a catalyst and...
>
>I've got a 'feeling' that it would recover very fast. It is an
>equilibrium thing. And that is why it is down some 20% ? 30%. That is
>the equilibrium we now find with the given chlorine radicals up there.
>
>The problem with CFAs is cumulative because the the very long lifetime
>of these transported radicals.
>
>>
>>
Thanks for the link, Dan. It's just what I needed.
Turns out the decomposition reaction also has a
photochemical component, so both reactions stop in the dark.
I did note some question of how much the lower level ozone
concentrations are actually affected by CFCs.
Regards,
Bill Ward
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