PL CGET AND TEFTRING LICE sant ~cSe@ re Asassessmant 7a Lae tea ely lar 4° "raza Faaeraia Agnz2lao 2. “ _ ~@74AL. an 4 MATL ee] TOMTIACTIR Name Asiccigteg Saivarsices, me. 7” =_+7t Las Dart setsaris . TUTE aNd tL, 20 ro ghee we NL MSE “ASK NG 2EvV 2 NO " -a albltacnments3: Facilizcv Requirements. fs anticinated shat work tor this arovosal will use existing Laboratory and site utilicy services. Greenhouse, “.A., and Znight, [. arms. w@essard, =.7., BNL 351313, Greenhouse, N.Ad., July, 1980. Marsnall Islands: and Milsenberger, &.?. A Stud? 9 A Reconstruction of Thranis Tose Zsuivalenzs far Rongelap and Veirix Residences - 1955 t9 1980, Plli”, lerster, 128%. 2. wh s INL PuttIsa. The suricse of this research is to vefine the estinatad thyroid adsorted aises recaived ov menders of the Rongelap and Utirik Atolt copulactons in th Marsntall islands. These doses will se compared to the thyroid nodule ineicence 29 gtsviie infsrmmatisn towards assessment of the risk coefficients for radiation saduced invroid diseasa. ~acidence of thyroid nodules, Senign and aalignant, in the exposed popula~ sions oF Yeirix and Rongelas nas indicated critical diiferances La correspondence detween nodule incidence and thyroid adsorbed dose for these sonulations ralacive 23 thar raportad Sy the Japanese Tumor Registry Lite Soan Study or the other pooulations under study as reverted in 3TER III. The estimaced axcternal dase racaived 3 che tina fallouc segan t9 the time of evacuation snews chat the adult Ronge lao ulation received an external absorbed jose (175 rads) which ‘vas abouc 13 tines t for the Veirik sopulacion (14 rads). The thvroid absorbed doses wera iztaztad originally <2. Se several times these external doses. A sreliminary study has indicated that che importan:s dosimetric area of investigation 4s the seriod starting from the pegtenas1g 2 fallous 29 the completion of avacuation for both the islands. In addisis the fact that the Vsirisx segulation raturned withia 129 davs 2xiacnal. + fallowing wvacuatlaa, wheraas ime Ronzgelas topusation teturned altar three vears, requires that the Ttirikx ceoulation je 2xazined dosimetrisaliv in tems 3 sf a Longer exposure seriod, 30th internal anc Turther scuctes would c herefore, nave 29 concentrate on the Taaxanmina- issued >2v varisus agencies furing ftnat rion of ail availlabie2 gata in tescorts 4 seriod, consultations with scienecifiic sersonmnel involved at thac tine, identiivin:g tne areas of uncersaincy, and using appropriate comouter programs 22 analyze <cne iata. The and resuls will enable comparisons redules and the vaassessed iose astinatas. Setween the incidence ar favroic A-scan e