the number of daf@ points. An average value of K, was assigned for each nu- clide, and the results for the Rongelap and Utirik populations are given in Table 3. For the evaluation of Ky 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_, a) 60.05 705, 6574 1370, Rongelap Adults , - - - -4 Males 1.5x10 3 1,.8x10 4 3.1x10 3 1.4x10 Females 1.6x10-> 4.1x107" 3.5x10°° 1.4x10° Adults 1.5x1073—1.9x1074 3.1107? 1.4x107" Ucirik Adults -4 Males N.D. 4.6x10 Females N.D. 4.0x10 Adults N.D. 4.2x107¢ -4 -4 N.D. 1,.4x10 N.D. 1.4x10 N.D. 1.4x1074 -4 N.D. = No data sufficient for analysis. ae The valiies of K, were similar formales and females and for residents of Rongelap and Utirik. For 905, 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