12 Scientists See Danger To Northeast in Fall-Out; Report to A.E.C. Says Nuclear Blasts, if Continued, Would Bring a Rise in Strontium 90 in Young Persons SCIENTISTS WARN OF FALL-OUT PERIL Safe Maximum Defined
12 US scientists say bones of young in NE US may contain 1/10 to 1/4 maximum permissible strontium 90 if explosions, in next several yrs equal those in last 12, note in summary-analysis of Cong (Holifield) com hearings issued by com; forecast made at AEC-sponsored conf, July, on strontium 90 concentration; conferee says all who attended, including Libby, agreed to forecasts made under stated conditions and assumptions; some of figures are higher than those Libby used; key points made at hearings as interpreted by com include views that even smallest amt of external radiation is harmful, that man's lifetime exposure to fall-out from strontium 90 and external fall-out from tests already made is and will be small compared with natural background radiation doses and that results of further testing at level of past 5 yrs could constitute hazard to world's populace