Z 32 that because the uraniun 4s only present oh, nbdout two-tenths of one per conte So that the silicoaia hazard; it's much greater then the uranium hazard ac far as that is concerned. DRe FAILLAS \Vhet do they do about that? Do they wear naskg? . , DR. JCHN HARLEY? DRe FAILLA? What -- It cones from the ire purities to some extentj more radon comes out when 4t's vet. HR. EISENBUD: The water that they are ucing is loaded with refon, You see they take it from underground, DR. E.Ae DOISY? Ien't this the situation that we have to have uranium and therefore miners are exnored to radon and other products? It seems to mo it's our responcie bility that we actually do the work ourselves and that 1t is the resnonsibility of the A.E.C. that they are protected, DR. FAILLA: Surveye have been aade BX