Document JvmQ4jqKY7wp5NdOpd7yajd02

l t. t' April 29, 1970 Mr. S. M. Toby, President American Mineral Splrlta Company Division of Union Oil of California 1343 Avenue of the Americas Mew York, New York 10019 Dear Mr. Tobyi You are already well aware of the publicity surrounding the allegations that certain Polychlorinated Biphenyls (FCB) are environmental contaminants. It haB been suggested that one possible souroe of contamination is the use of these materials in pesticide formulations. Sven though the recommendations for the use of FCB in insecticide formulations originally oame from the U.8.D.A., Monsanto has written to Dr. Kayes, Director, Pesticide Regulations Division of U.S.D.A. reoommendlng that his department give orltloal attention to the registration of PCBs as an ingredient of pestloide formulations. We attaoh a oopy of our letter to Dr. Hayes. Furthermore, it has been decided that effective immediately, Monsanto will discontinue the sale of PCBs to any oustomer using or intending to use PCB as an insecticlde/pestlclde oarrler. By PCB we mean the members of the Aroolor 1200 series, namely, 1221, 1232* 1242, 1248, 1254, 1260, 1262, 1268, and toluol/xylol solutions of 1254, 1260 and 1262, plus Aroolor 4465. As our distributor for these products, we wish to ask for your co-operation in making certain that sales for these applications are discontinued immediately. Our reoords show only one oustomer buying Aroolor 1254/1260 for this application, namely John Rooney, supplied by your location in Miami. There could be others, of oourse, of which we have no record. Please Inform us if you Intend to oomply with this request and also when the neoessary action haB been taken. MQN3 08B39S 2. This ban does not extend to chlorinated terphenyls, namely Aroolor 5060, 5442 and 5460. Kevertheleaa, we feel that their usage should not be recommended or encouraged further. What suggestions might we suggest? We suggest formulators may wish to look att Santollte HHP Santollte MS-8o Santlclzex 261 Santioiser B-16 Santlolser 8 We wish to point out that we do not recommend a switch to any other product without oheoklng by the customer to obtain U.S.D.A. olearanoe. This is outside Monsanto's jurisdiction. We apologise for the trouble and lnoonvenlenoe this request may cause you but, unfortunately, present circumstances dictate this oourse. Should any of your location managers and representatives have any questions concerning this matter, the appropriate Monsanto regional manager for the Plasticiser Business Oroup will be willing to render all possible assistance. Very truly yours. /dbw oot A. 8. Hoyer B. W. Norkus P. E. Sohmeal J. W. Sohrage D. Stewart W. B. Schalk Director of Sales Plasticisers MONS 08S3V9