Document k5oJYQnkR7ppkyLG1DnMVrzO

Monsanto M O M i M A M f ft L O r ATI DAT susjcci < HI tf Mf NCI t TO O David Wood-St. Louis-B2SD August 29, 1975 TELEPHONE CALL REPORT 8/29/75 W. B. Papageorge B2SK 15 0 H. S. Bergen-B2SL C. Paton/T. L. Gossage-B2SC/B2 G. Roush-A2SA G. Levinskas-A2SC SLm J. P. Mieure-T2B W. R. Richard/R. H. Munch-T3A/T W. W. Withers-B2SA CALL FROM: Dr. J. R. Allen University of Wisconsin (608)263-3524 Dr. Allen called about Dibenzylfurans and Dioxins in Chlorinated Biphenyls as a result of his reading the Risebrough paper. He is concerned about levels of these compounds in the Aroclors which he is using for his U. of Wisconsin feeding studies since he is unclear as to potential interferences in results which can be ascribed to PCB per se or contaminants in PCB. He asked if we could check samples to be used in his studies to determine positively if contaminants were or were not present in those specific samples. I said that I did not believe our analytical techniques were fully developed to the stage where we were confident that we could properly cons i<der ourselves able to meet his need.# I told Dr. Allen that we would discuss his' request qnd call him next week. /deb David Wood NEV 018503