au Kh.oISHe (continued) ataosphere. Gg! I'm wondering if we shouldn't consider this... No, I'm thinking of a mechaniaa that Dr. Mitchell mentioned, retention in the hinge, what telerances we can expect of that. MITCHELL: I have those figures, but, I aleo have to have that as poesible accunulation in the skeleton. FOICRs «CLAUS s Yes. Dr. Western has been making some caloulations on thie for sou time, and maybe he can get s0m@e.sse ERANISHs Gould you make a few remarks, Dr. Western? WESTERNs The inhalation hasard is very difficult to estinate like all these other things. One has to make eny nosber of assusptions. One of these things which I think would be impurtant would be the problem posed by Dr. Wexler earlier this morning, that if the stuff came dom in rain primarily, or whether it coms down in the air. If it comes down in rain I don't think you'd breathe very much of it. If it comes dom in the dry air primarily, I think you'd have a vary good chance of breathing ali the aaterial that we consider being emall enough to be drifting down over long periods of time, #0 I should likes to say in pessing that it would be of some importance to determine, in establishing an inhalation ha,ard, whether it does come down in rain, or whether it comes dam in ths air. Gut if one makes some broad assumptions about what the behavior of the stuff is after it enters the limg. SE I assuned DOE ARCHIVES