Ozone treatments

I am posting the following question on behalf of a friend who
teaches and runs the gallery for the fine art department of Minot
State University, North Dakota.  They suffered a fire there on
October 31st which resulted in a lot of soot and smoke damage to
many art works.  It has been suggested (who by I am not sure) that
works be treated with ozone to deodorize them--hence her question.

    What are the long term effects of ozone deodorizing on acrylic
    and oil. I heard it affects the substrate of oil, and causes
    rubber to crack like it does as it ages, and I am curious about
    acrylic. That was the treatment of choice for the artworks. Is
    time a crucial factor?

Claire Dean
Dean & Associates Conservation Services
Portland, Oregon

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                  Conservation DistList Instance 11:44
                 Distributed: Friday, November 14, 1997
                       Message Id: cdl-11-44-015
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