Message from charlie.cray@green2.greenpeace.org

[charlie.cray@green2.greenpeace.org]

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Original-TO:      dioxin-l@essential.org
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In his description of UV degradation of dioxin, Lewis Shadoff 
wrote:
 
"...The time for decomposition depends on the matrix, and its 
ability to expose the dioxins to the light.  It also depends on 
the wavelength and intensity of the light.  The toxic oil which 
caused all the problems in Missouri was decontaminated by 
building a UV reactor on the site and recirculating the oil 
through the reactor until the dioxins were no longer detectable."
 
Would that that were entirely true.  In fact much of the reason 
the oil caused the problems was because it was sprayed on a horse 
track and 25 other sites, including Times Beach.  The EPA 
and Syntex Agribusiness (one responsible party) chose to 
construct an incinerator to burn the soil from all the sites, 
where it was still, decades later, contaminated with dioxin.  The 
incinerator, by the way, has had problems, as previous postings 
to this list have described in detail.
 
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