rate from the equation. This method yields n-l estimates of Ky where n was the number of data points. An average value of Ke was assigned for each nu- clide, and the results for the Rongelap and Utirik populations are given in Table 3. For the evaluation of K, from Eq. 1 and 2, radiological and physiological parameters were obtained from the open literature (ICRP59, ICRP68, ICRP69, ICRP79, Ki78). A representative sample of these parameters is presented in Table 4. Table 3 Summary of Dietary Rate Constants (K., a7) 60 Rongelap Adults Co 90 65 Sr Zn 137 Cs Males 1.5x107> 1.8x10¢ 3.1x10°° 14x10 Females 1.6x10~ 41x10" 3.5x10°> 1.4x107¢ Adults 1.5x10-> _-1.9x10" 3.1x10 > 1.4x107° Utirik Adults Males N.D. 4.6x10 Females N.D. Adults N.D. -4 -4 N.D. 1.4x10 4.0x10“ N.D. 1.4x10" 4.2107" N.D. 14x10 N.D. = No data sufficient for analysis. The values of K were similar for males and females and for residents of Rongelap and Utirik. For 90... on Rongelap a factor of 2 difference between Ke values was observed for males and females. The female parameter for Rongelap Atoll compares with that obtained from the Utirik data. A paired t-test of the Rongelap male and female data indicates that the male/female difference was highly probable and therefore not significant. 15 This difference leads to a