76 REFECTS orf NON PAD ATION monuclear explosion Dhis ritermab ecue a nation resulted feon both iar alation ioe Lies tion of fallout caater High levels of tert ty were fonna Wwobe and on the externa infaces Gf pant contamination of tae) tertuc portions of fri ts and vegetables was siiall. Poe Of the ind vault ‘ radionuclides, Si) pecause ¢f its high ~otun | itv and relatively long rachouetive tialf fe wo probably the isotope cf grearest potent ul. ard in the envirommest, Few of the fission orodurt. present or ehvironment were ceadily apserbea fron oe 7 ie lungs and the G. [otras t. Radioenenne sd us ysis of the urine sunides from the Ronee! ep people indicates ‘har r, Bal und the rare ears} group together oonst tured percenb of toe total beta activiny ot rer ie ab dee clays pest detonation. Sr° vas the predomutant rida nuchde at this tune. contbuting 42 percent of the total beta acuy.ty Assiavs for fesile ni terial in the pooled nrive samples were negat ve The human body purden of individuar rida nuclides Vas estimated trom oradtochenise t analysis of the bani atime and of the tasies and urme of aaumal- fron. Rongelay Phe mean bods burdens of the radian celides ta tow Aghnginae group over cppre samuteiy oie ais! those of Rongelip. todo the men body tor dens of the Amereda Rongelap eronp CVE hour one fourth ot «+ le the terseyereres, perunit volume cfourite vasthe same forcuiet and children frou flor oetap che total sete cs excreted ya the irmie ou 2h youre bye qiideed under 15 vears f age was -tetatier nth. lowe than that excreted oy The total amount oo the Gr To tract ag estimated to be aie un he vieid, although crenter than tolernnee, was Pong aioses of Po used in the treatment of wperths roidism: or carcinoma, \t one das sad thors tae dever. et pest detonation, the concentra- ona d sr? was ealenlated to be near the maxi‘oui permissible level for this nuclide. At ver mes following exposure, this longer-lived hasion proadict presenis the greatest potential ; Sterna hazard. ‘oral pdimonistration of calcium EDTA be- 7 weeks post detonation to a represent“ive group of individuals from Rongelap in- wong heased he rate of excretion of aetivity 2.5 tues TTowrver. the decrease of the body burmE os silgot, as the excretion rate was very ow this tame, Antyas of the mternal contamination inveates taut the dose to the tissue of the body os tear. but, with exception of the dose to the wead. did) vot exceed the imaximunt permisHectose devels. The activity fixed in the body merered rapidiv as a finetion of time. The ontr tarion of the effects of internal contamiMow te the total radiation response observed eperrs o be stmalloan the basis of the estimated Sooy burden of the rrdioelements. In view of e shor bertiets rope oat Tfe of the most abtndant fission on the situation. the possibility that opraeation effects will oeeur is small. 3.4 Internal Contamination of Animals 7 hi ost cletomatiore st peore fram Ror gern Todine is probably «compared to the partially er totally ab- actudt- paar vetive qintertie This activ ty wae corte bt ted shietly by otate of short radioles si amt dialogtend |oadf fe and dimuated soluiidls tren tor Rongelap. he tao.) hazardous mternal radioemitter at hirty fiies after exposure, The dose to the Hb oNGERN Gt CONF AMINATION of a ntinber of lois ollected on Roneebtup was studied. The VES Sen oonl ob foe rine was studied, and radioanalyses were ride of VaLrrous Tissues, TVITW Tn the tissues oe eddy cere ren ith + Fow. (Dhe ceomee ore tc b oeliqisctepis ' Plies dita provided the basis for estimating re body burden of the ridrotsotopes tn human months post dere tea meng rhe uppe of tos Phe estates and other -tport vr tp oaredy ahetee st upie Toes Stash cee perdver an on tue thvrord fe or SLE eG Sait opps \ ° Tne cblition, hematologrend and patho- ern tes were mide. and antoradtogra pls secreted to ssties were prepared. AC timber beg dns ape cadsa bere studied for the