Document 0Ym1Yr3mqQzMBykvKrEq9Krm

Brussels, Belgium 26th January, 1967 SWEDEN, AROCLOR DWigb G. R. Buchanan - 6t. Louis a. Benignus - 8t. Louis fi. Camsron - Brussels D, V K. Hardy -- London *, Kmraet Rally - st. Louii Steenrod - ft. Louis We recently sent you a translation of a Swedish newspaper article referring to the Identification in nature of polychlorinated biphenols. Because some of the uses claimed for the materials fall in line with the uses of our own chlorinated diphenyls, we made a point, during our recant visit,to Sweden, of visiting the research institute involved and discussing thoir particular programme of work. To eliminate any earlier confusion that there may have been, I should like to praphasise that there is no doubt that the chemical which ia the subject of the investigation and the news release, is chlorinated diphenyl i.e. Aroclor. The company that supplied the mass apectrotaeter which was used in the research programme, in fact have recently put out a press release on this work. Although X am horrified by scow of the headlines in this prsss release, it does basically describe the research programme carried out in Sweden, and describes in clear terms bow chlorinated diphenyls were identlfi X therefore, enclose a copy for your files. Jensens only aim in life es an analytical chemist, was to identi the substances found in his research work on the occurrence of insecticides in nature. The unfortunateiaspect of the situation ia the comments which have been adJed to Jensens work. He showed what was present and unqualified people have made statements as to the possible effect of what he has found. . Summarising the publication position, there were original artic] covering the Stockholm conference ia the Swedish daily press, and these reports wars picked up also by the Danish press. You will have seen from D.V.M. Hardy's memo of the 12th January that it has also been picked up by the Shell Chemicals Labors toi in ICant, U.K. Jenssn also divulged that he had been contacted by the Swedish American press agency who intended to include information about this research work in their monthly review "The Swedish American Journal". There ia additionally the press review issued by LKB Troductor A which I imagine to have been sent to a number of technical journals. TRAN 05662L STLCOPCB4024861 Q. R. Buchanan St. Louis 2 26th January, 1967 Effect In Sweden This matter was raised with us by every capacitor manufacturer in Sweden that ve visited* Fortunately there has not been too much adverse comment as yet from plant worksraiainca they have not associated the polychlorinated biphenols mentioned in the article with Axoclor or Pyralene used in the Swedish factories. Jensen, however, stated that he had bean approached personally by several workers associated with chlorinated diphenyls for non-electrical uses and these workers vers quite worried as to the possible effect on their health* Future Research Arrangements are being made in Sweden for this work to be taken over by one of the medical institutes who hope to etudy the toxicology of the poloychlorinated diphenyl residues at the levels of concentration found by Jeneen. Additionally a geographical survay is to be carried out to try and determine where the higheat concentrations of rssidus are appearing and, if possible, to detect from this the method of escape so that more security precautions can be taksn* We were asked by Jensen if it was possible for Monsanto to supply any samples of the pure isomers of chlorinated diphenyl eince his work indicated at the inomant that the lower chlorinated isomers are fairly easily metabolised, and the potentially more dangerous constituents are the more highly chlorinated members. If he can get hold of pure isomers, he would like to carry out some work on cowparitiva rates of uuatabolisation* Jensen is forwarding me copies of his mass spectrographs and details of sample preparation eo that we have all the details of his research work. The point that Z have made to Janaan is the heed for care in any further publication of his work which is made. Be accepts that the toxicology of chlorinated diphenyls ahould only be discussed with detailed information about exposure coneentratioi and exposure times and that generalised statements out of context can only arouse undue publio ooncem. Zf any technical journal takes up the prsss release from the ZJ3 Froductor Compai there is little that Monsanto could, or ahould do in the way of publishing rabuttals. Wa do not want, personally as Monsantt to gat too involved in this question* I am hopeful that w* q56*>2.2. * * * ,/* * STLCOPCB4024862 O. K. Buchanan St. Louis -3 26th January, 1967 night persuade Jensen himself to writs a lsttsr dafining tha trua extent of his own rssaarch work and placing his rasults in thair propar perspective. It would certainly he helpful in gaining his further support if we weas able to make available to him any small quantities of pure isomer*. lines* wa are not alone in supplying polychlorinated diphenyls to the Scandinavian market, X have drawn this matter to tha attention of tha other aakarel manufacturers in Europe. As you will sea frmra tha press release one of the major points that is made is tha difficulty in disposing of waste chlorinated diphenyls and again I nuat mention that constructiv recommendations for the aafe disposal of our materials would b most helpful. TRAN Q56623 STLCOPCB4024863