iii 7 MON This discussion seens to me to indicate that the pilot query which we have up there is only part of the question and the other pilot qery which we had was what is the distribution of radioactivity for Strontium 90 in the werld today? they are two quite different problems. I think that To determine as human hazard requires one set of measurements, whereas to determine its distribution in the world which is integrated into the human haserd requires a different set of measurements. You wouldn't need to make any stratospheric measurements to determine the human hasard as long as you had fallout. LIBEY: I think, on the contrary, that you probably would. In order to back up finding the radioactive Negroes in South Africa. You find a radioactive person ir Seuth Africa and say hew in the world. Maybe he tock a trip or maybe he ate Alaskan canned salmon, and you becin to investigate and find that the rain is radicactive with Strontium. SOLOMONs But the fallout takes account of a great deal of this. In other worda, one is operstional and the other 4s science. BILL: There is another inportant thing. Lf you analyse, say in your pilet atud7, over a period of months you find that a certain axount of stuff is biological material. You are still faced with the problem of what is going to happen in the future and until you arrive at something about diatribution in the lithohydresphere sphere and/ap well, I doen't see how you are going to extrapolate with any competence. ne DUE ARCHIVES