224 THE SHORTER-TERM BIOLOGICAL HAZARDS OF A FALLOUT FIELD DISCUSSION ON TOPIC V TOTAL BOSE DURING 21 mo. cattle 4r man 0.013 ‘ e no 0 hR ** i ’ a n a , 4 an v i re t it | ‘ rtf a4 4 % i -| we t * i 1 ' CATTLE (ay.) ! y = a + i ~ o Hi = = Se eo z= & ‘ A oF i '¥ i,. 2? / % Nea ? \ af ’ wo q 2 1 o 2 E = 9.000: ¢ 3 0.00! ' ‘ i ‘ : i ‘ a ’ ‘ ‘ ‘ HUMAN (av) * 7 4 ! a E ° i+, ‘ ! = 0.01 as,* ' ‘ r ' i } a ‘of 5 / ~ —4 ¢ ] t E a ‘4f i * CATTLE (853 samples) o HUMAN (I165 samples) 4 ] E 2 > O.1 5 ‘ ‘ i iV i 1.0 4 ww E E t ° 6 TESTS. + r 1 + mm £! BRITISH RUSSIAN U.S.(PACIFIC) U.S.(CONTINENTAL) Egmeld et F r I _ a, dF JFMAMJJASONDJFMAMJJASOND 1955 1956 Fiaven 2.-—-Cattle (853 samples), and human (1,165 samples) thyroid levels of 1-131. w ne LL. (CATTLE) se LA. (HUMAN) efforts, and perhaps especially their efforts to get more data on long-lived animals, primates, oa BRITISH oe RUSSIAN ae US ve aeeeeae 4 po fant Agr Jat Oct po Jan 1955 sentence, it is quite a mess. The problemis, as always, lack of adequate data, and especially does this apply lo human data. eo 8 hf Oct 1956 Frauns t.---Total dose 1-131 during 81 months. Dr. Lanaaam. To summarize the status of the problem of internal emitters in one short Ap eens aae tl (1955-1946). T would like to more or less summarize the status of internal emitters by really pointing out where our lack of information might lie in hopes that it will stimulate the experimental radiobiologists, primarily, to increase their 28X10™mW8.4107" I=73hRBE) N“ZSE(RBEN andespecially man. T would like to put on the board the basic formulae from which Dr. Morgan has worked 3.5 1078q fe (MCP) =FG" oy and tables of numbers. From these formulae one can sce the very inadequacies in our data (MPC) 0 s0 diligently the last few years to get us tables which, if supplied, would allow us to put the whole subject. of internal hazard on a somewhat more sound basis. 0.1(0.99) 162 I=}, ~ SERRBEYN _ 16 ~2E(RBE)N =... OmW PNPB.TK IX LEXI 6.05 X 105f,2E GBEN| 3.1107 tq fe q= maximum permissible body burden W=0.3 rem/week m= mass of critical organ (g) f,efraction in critical organ of total in body ZE(RBE) N= weighted energy absorption term given by equation C, (MPC), maximum perniissible concentration in air (ue/e.c.)