Bos UNCLASSIFIED cooperative study to be carried out principally st the Medical Selool of the University of Utah on the chronic toxicity of plutoniun, and mesothorium. jun, This is to te a long term study lasting probably as long as ten years, using the dog as the experimental animal, Hadisuch a study been started five years ago mich of the present uncertainty eoncerning the taxicity of these elements would no longer exist. [The of utmost significance and the staff of Croup Hed is perticipati S etudy, under the overall supervision of Dr. John Bowers, should full partnership. Aleo of unusual significance have been the studies carri out during the year on the toxicity and toxicology of tritiun. 5. Industrial It is doubtful if anywhe the country there exists an industrial hygiene organization whic in is confronted with as many bizarre preblems as those arising here «a Los Alamos. In his report, the Group Leader has pointed out qui accurately the four main lines of attack: and air cleaning; 6) a) perticipation in the planning for new cons tion; c) investigation of new materials; and 4) on health education. work on air pollu increasing These aims, it should be remembered, are qyite aside from the normal and routine program of air sampling and s analysis carried out by the Group. In the early years of the Preject Industrial Hygiene as such just didn't exist, Today it is recoggized as one of the most vital parts of our program, Some of the statistics of the Group alone give an indication of the amount of work undertaken. UNCLATTT > 001309'5 010 Je... LOUK NYS eee oe — LANL