38 TABLE 4.2 #3 PLUTONIUH-239,-240 AND MERICIUZ!-240 IN 1978 FOODS AT RONGELAP ISLAND BASED ON BNL TYPE B DIET”I —- .. . . . . Grams >er day rI I I I —-— Drinking coconut Copra nut products Pandanus I juice Fish (reef) juice ——— -.— Plutonium -239.-240 pCi/gram-fresh 514 2.7 x10-5 293 6.5 X 10-5 96 6.0 X 10-5 194 Americium -240 24 X 10-5 Picocuries per day pCi/gram-fresh (2) 2.5 X10-5 (3) .027 (5-9) 6.8 x 10-5 (7-9) .039 (5) 2.7 X 10-~ (3) .008 ( 98) 4.3 X 10-5 ( 98) .060 ‘1 Livermore has revised the transuranic data of Robison et al (1982b), and the present doses are about 50% higher. The entries in the table above are based only on chemical determinations (number of samples in parentheses). They are responsible for about 25* of the total dose which Livermore now attributes to plutonium-239,-240 (.37 pCi/day) and americium-241 (.13 pCi/day). The rest of the dose was estimated by a ratio method of extrapolation: it was assumed that the Rongelap ratio, specific activity of food to that of soil (chemically determined) would equal the Bikini ratio (based on chemical determinations for both soil and food).