From A Twenty-Six Yeur Review of Medica] Findings in a Marshallese Population Exposed to Fallout in 1954. R. A. Conard et al. - (In Draft) AQ ACO a Appendix YI _~ ee A. DOSE ASSESSMENT Early Radiacion* ACOLL Rongelap ALlingnae Rongerik Approx. Est. Instrument callout began evacuation (mR/hr) CR) 64 H+4 to 6 hr 4H+50 hr (16 people) H+51 hr (48 people) 375, H+7 days 175 H+28.5 hr (8 wen) 280, Ht9 days i00, H+9 days 69 40, H+8 days 14 18 28 Table 2. H+58 hr cto 6 hr H+4 H+6.8 hr H+34 hr (20 men) Started at H+55 hr H+22 hr y¥ exposure readings Time of time people 157 Utirik in air). Estimated gamma exposure (measurements Table Ll. No. BEST COPYAVAILABLE 78 Estimated body burden (\iCi) of Rongelap people. Activity* ac day vat li 0.34~ Rare earth group 3 (in thyroid gland) 0 ~ 1.2 0 - 0.013 Ca Fissile material 0 0 40 0.021 9 0.03 6.4 -11.2 As Ru burden 0.19 2.7 perm, total body at day 8&2 1.6 - 2.2 ‘Ba Max. Activity** 0.7 ~ - 0.019 - 0.016 (yg) 50 0.0 0.0 200 0.4 *From U.S. Naval Radiological Defense Laboratory, **From Los Alamos Scientific Laboratory. - pny Table 3. ntspney oO Estimated whole-body (gamma) and thyroid doses (rad) Thyroid. dose (incl. at exposure gamma), age: Whole-body Population Rongelap Arlingnae Utirik No. dose 65 175 18 138 69 14 <lO 810-1800 275-450 60-95 10-18 >18 335-810 335 L190 30-60 - 135 30 kAyeevaluation of the early whole-body and internal organ doses is in progress ak Brookhaven National Laboratory. Incomplete results give some indicaflom fo at the previously estimated thyroid doses way be tae Low. Sines the eesulty are preliminary, they are not includéd i2 tete resine,