Document 1xJYzBpX1rgjbvQgZ3qJKKqm

BCCx D. E. ROUSH August 17* 1970 Mr. J. M. O'Leary Technical Superintendent Industrial Chemicals Division Hooker Chemical Company Niagara Flails, New York 14302 Dear Mr. O'Learyi Monsanto's Don Roush Informed me of your Interest In receiving more Information regarding polychlori nated biphenyls. Z am enclosing summaries of Monsanto's position concerning the selective markets we will supply and the status of blodegradablllty and ohronlo toxicity studies. Z have also Included copies of our analytical methodology for the detection of FOB'S In water, sediment, Biological specimens and gases. We would appreciate any comments your laboratory may have to offer concerning these procedures. Disposal of scrap PCB by burning can be achieved If the temperature Is maintained above 800C. Attempts to dispose at lower temperatures will result In vaporisation or worse if partial oxidation to highly toxic furana or dioxins results. Staok gases from couplets destruction must be scrubbed and neutralized to properly dispose of the resulting HC1 gas which Is formed. * We have been working with the John Zinc Company, Tulsa, Oklahoma, on the design of an Incineration scrubbing unit for Installation in one of our plants within the next Blx months. OSW 020415 STLCOPCB4008344 -2 You may be interested In the disposal service offered by Rolllns-Purle, Inc., Wilmington, Delaware, James J. Mclaughlin, Director of Marketing, 302-478-5150. They have an operating unit at Gloucester, New Jersey capable of ineineratlng chlorinated hydrocarbons. I hope you find this information helpful. IT I can be of further service, please let me know. Sincerely, W. B. Papageorge Manager Qivironmental Control Enclosures C - Sent the following! i PCB's - Control of Escape to the Bivlronment PCB's - Biodegradation Studies Summary - Interim Status Chronic Toxicity w/Aroclors Analysis of Water & Sediment for PCS Analysis of Biological Materials for PCB A tentative procedure for the determination of airborne PCB Identification of PCB by gas chromatography/mass spectrometry DSW 020416 STLCOPCB4008345