On Sat, 3 Feb 1996, Diane Gutenkauf wrote: > > Wow. Well, with apologies to industrial hygienist and museum consultant Monona > Rossol, these are the reasons why you should stop using PDB immediately and al l > museum staff should start reading appropriate conservation literature as it > pertains to their collections and their lives. > > The Threshold Limit Value (TLV) for PDB is 10 parts per million, indicating th at > it is very toxic. Its primary effects are on the respiratory system and liver. > It is also probably a human carcinogen. TLV' s are airborne substance standard s > set by the American Conference of Governmental Industrial Hygienists. Toxic is a > technical term with a precise definition. Anyone who wants more detailed > information can contact Monona Rossol at Arts, Crafts, and Theater Safety, 181 > Thompson Street, #23, New York, NY, 10012. (212)777-0062 > > Plus, it has no proven effect on mildew. > Or pests. Thanks Dianne, Great information, well stated. Yours in trying to get the mothballs out. . . Lori van Handel Director of Field Services/Assistant Conservator of Objects Williamstown Art Conservation Center