Dose calculations. The Moss (Moss 1988) factors in Table N.12 8&2, supplied through the courtesy of Dr. E. T. Lessard of Brookhaven, permit the calculation of plutonium-239 oral intake from urinary excretion, or vice versa. The factors vary about 3-fold in the present case where the periods of exposure are from about 5 to 25 years. Of the 104 cases in Table N.12 #1, all had lived on Rongelap since birth or for at least 7 years with four exceptions. One other exception was the case of a 12 year-old female who first arrived in 1980; her output of 2.34 [x 10-4) pCi/d was practigally identical to that of an 11 year-old (2.18 (x 10-4] pCi/d) who had always lived on the island. For orientation, let us use a factor of 1.5 x 10-4, corresponding to about 7 years of plutonium exposure. Then for the maximum urinary output, the intake would be 38 pci/d [ (5 x 10-3) / (1.5 x 1074) J). The corresponding (maximum) whole-body dose (30 year) would be 1.5 ren for plutoniunr-239, and 3 rem for the three transuranics. (The corresponding Livermore diet estimate would be .014 rem.) Three rem of course, is relatively a sizable dose. However, it is of interest that when combined with the rest of the Brookhaven estimates, the total dose of (4) rem does not exceed the 5 rem limit. For exposure from birth to age 30 years, the [estimated plutonium maximum] dose would be 1.63 times greater for 4.9 rem]. (Table 4.4 #1). [I emphasize again, however, that the maximur transuranic estimate is an unrealistic one.] 5000b8%