Table 6. Utirik adult body burdens, 1979 (D = ratio-derived; NA = not analyzed). Males Body burden (wi) Females Number of persons Body burden (Wi) All adults Number of persons Body burden ( uCi) Number of persons Days post return 600, D D 6570 D 4.0x1073 3.1x1073 9.7x1074 3.5x1071* 2.7x1071 3.7x1072 3.5x1073 7.6x1l074 2 14 2464 8.7x1l074 1.6x1071 3.3x1072 15 2.1x1071 3.5x1072 3924 29 1734 2464 5526 D 1.7x107! 1.6x107! 1.6x107! 6114 90, 1.4x1073 5 2.4x1073 2 1.7x1073 NA 1.5x1074 12 14 NA 1.5x1074 12 17 NA 1.5xl074 24 31 8669 9225 4 .tx1o-! NA 2.7x107! NA 3.3x1071 NA 1004 1.2x1073 13765 2.9x107! 2.6x107} 1.2x107! 6.2x1072 5 15 9 27 19 1.3x1073 2.0x107! 1.3x107! 7.8x1072 4.3x1072 6 15 13 21 17 1.3x1073 2.5x107! 1.8x1071 1.0x1071 5.3x1072 7 11 30 22 48 36 1734 7213 1734 7213 8309 9225 *Measured at Argonne, not used in dosimetry. 90sr, and !37¢s. The standard deviation on this ratio is 15%. These ratios were determined only when the body burden for the nuclide of interest had reached a maximum. Thus a significant time passed on Rongelap, 2 to 3 years post return, before a body burden comparison was valid. It was observed, in all cases, that the population mean body burdens were lower by a factor of 3 than the highest for any individual in the popula- tion. The population mean dose equivalent and maximum dose equivalent likewise differed by a factor of 3. The population average daily activity inges- tion rate and maximum value differed by a factor of 4. For the nuclides and 6570, a substantial sub-group in the population, children and infants, received a dose equivalent higher than the population mean value. - 118 - 137’¢s