From: Ken Watson (watsok@frii.com)
Date: 07/15/02-12:21:47 PM Z
John,
Fear not about refrigerant. The Ozone depletion problem comes from the
chlorine in the molecule. Mt St Hellens injected more chlorine DIRECTLY
into the stratosphere when it erupted than the amount we were going to use
in refrigerant over the next several centuries. We still have ozone, use
it and the sun will make more.
Of course there is always less ozone in the winter than the summer
depending on where you look. Less direct exposure depending on where you
live. The poles obviously get the least sun. Also the output of the sun (
therefore ozone ) varies with sun spots. The more spots the more output.
So year to year measurements with out the context of solar output makes
for good fear food.
Remember when everyone was sure a new ice age was coming? Now everyone is
sure we will melt the poles and all kind of things will happen due to green
house gasses.
How does this relate to alt photography? well for exact exposure check the
true solar output for the day and chlorine is a halogen that combined with
silver makes POP or salted paper. There that should keep the flames low.
;<)
-----Original Message-----
From: John Cremati [SMTP:johnjohnc@core.com]
Sent: Monday, July 15, 2002 9:09 AM
To: alt-photo-process-l@skyway.usask.ca
Subject: good Ozone
To my understanding there are good and bad Ozone which effect humans...
Ozone can be good or bad for humans depending where it is made.
Bad Ozone : O3 that is produced at ground level especially in confined
areas that humans can breath...
Good Ozone:
Good Ozone that is created and located in the upper atmosphere which
absorbs UV radiation from the sun. I think we are in serious trouble
up there...The last map I had looked at, the Ozone depletion hole in
winter , was the size of Europe over the South Pole. ........... I
believe we have not even seen the beginning of things yet as it takes 20
to 30 years for expelled refrigerant gases to reach the upper atmosphere
which they believe is causing a significant part of the Ozone depletion
problem.........Dumping the refrigerant charge to atmosphere when replacing
any Air Conditioning unit used to be common practice prior to
litigation in the 1990's........................ In the 1980's I had
worked in Heating and Air-conditioning for a few years and I was probably
personally responsible for dumping hundreds and hundreds of pounds of the
stuff prior to finding out what it was causing.... Every Air Conditioning
Mechanic in the US did the same thing , blow the charge and make a little
spending money in scrapping the Copper and Allooneyum coils , then add
this to the Automobile and industrial pollutants....
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