TITLE SUOGET AND REPORTING COE Jose Reassessment for Rongelap and Uririk CONTRACTOR NAME ' Assaocigted Universities, ne. -Jt. HATOLAI 101-9 CODE BNL | | . DATE PREPARED | Q3/ 31/30 wWPRNUMBER | | TASKNO, | REV NO. 0 Teconnical ?rcearess cone. ash” the fallouc aaterfal thac sertled on the Japanese fishing vessel. These samples should provide che nost accurate characterization of the fallout. Prelinimary computer siqulations of fallout transporcation and deposition have been conm~ oleced. Daca analysis of tne recenc diet and life style study has been completed. Discussion witn scientists and technical people who were involved with the 3RAVO test is being continued. Analysis of the Marshallese ceecth samples for Pu isotopes is in progress. Expected Proeress in BY-2 (FY 1980), A final report on the diet and life style for the Marshallese will be com dleced. The compucer simulacion of fallout will also be completed. Thyrotd glands trom the exposed Marshallese will be analyzed for 99to and 1491, Analysis of the “Bikini-ash"” will be done as soon as we get an aliquot of the sample. [ce is also expected thac data on the exposed Japanese fishermen will be made available at chac cime. Preliminary analysis of the data generated so far will be made using existing models. The results will be extrapolated to presenc times so as tne validity of the mocels used. to test Expected Progress in 3Y-1 (1981). Final dose estimates cto the exposed inhabitants of Uciritk and Rongelap shouid te complered. The methodology developed will be extended to Liktap and other islands which were on the “fringe” of the fallout pattern. 2Og. Future Accomplishments. The cechniques and expertise developed in the course of this study could be used to reassess doses to population in other areas subjected to exposure from tallouc or even chose resulcing from occupational situations in the past. 2Oh. Relationship to Other Proiectg. a. This study will help establish dose estimates from the time of the inci- dent to the present, and will complemenc che aerial survey for external radfation measurements, over these islands, which has been completed. Together they should oresenc a reliable picture of doses received by che populations and also enable dose estimates to be projected into the fucure. b. This study will be in close conjunction with the BNL Radiological Safety Program in the Marshall Islands (HA~O2-01-02-0) and with related programs of the 3NL Medical Department (HA-O02-91-01-0), Coneinued collaboracion with the University of Washington, Laboratory of Radiation Ecology, and the Bacrelle Pacific Nortnwese Laboratory will be maintained in the area of sample analysis and data {nterpretaction.