Document VJ6zN3b275N8bjOm53DV8eNx4

n- 56 INDUSTRIAL HYGIENE AND OCCUPATIONAL MEDICINE 6. Microscopic examination of all organs of rats fed diets containing 0.01 through 0.32 per cent of DCB showed no major visceral damage that could be ascribed to DCB in the diet. It is therefore concluded, on the basis of the experimental results reported herein, that l,3-dimethyl-4,6-bis(chloromethyl)benzene has a low order of toxicity and that exposure by inhalation, by skin contact or by ingestion of food contami nated with the agent presents no serious health hazards. However, this does not preclude the possibilities of health hazards arising from exposure prolonged beyond those reported or under dissimilar conditions. The l,3-dimethyl-4,6-bis(chloromethyl)bezene used in these studies was supplied by Dr. A. M. Altschul, of the Southern Regional Research Laboratory, New Orleans. The pathological studies reported herein were made by Dr. Alvin J. Cox Jr., of the department of pathology of Stanford University School of Medicine, San Francisco. Technical assistance was given by Mr. E. K. Doxtader and Mr. Paul V. Marsh of this laboratory. if..' . !!; '"i;| :! / [,'!: