53 54 TABLE CAPTIONS Table 1. Estimated transuranic sediment inventory: Enewetak and 241 associated with components in core samples of Plutonium concentrations associated with sediment components (pCi/g dry weight). Table 4, Concentrations of transuranium radionuclides in Halimeda Alrae and Cactus Crater. Table 5. Plutonium concentrations in the water column at Enewetak Atoll. Table 6, Recent determinations of the distribution coefficient for plutonium. Table 7. 2394240 Concentrations of Pu in yearly growth sections of Enewetak and Bikini coral (f£Ci/g dry weight) FIGURE CAPLLONS Fig. 1] Map of Fnewetak Atoll with names and locations of the islands and the 6 nuclear craters, Fig. 2 2 4 Activities of 23942405 (mCi/tem”) associated with the sediment components in the top 2.5-cm layer of Enewetak Lagoon. Fig. 3 Activities of 2A (mCi /km?) associated with the sediment components in the top 2.5-cm layer of Enewetak Lagoon. Fig. 4 Activity ratios of Enewetak Lagoon. Fig. 6 Vertical and areal distributions of 239+240. Pu and 241 Am activities in sedinents in Mike and Koa Craters sediment. Table 3. : 23942 Activity ratios of 2454 A 3H Ony in the surface sediments of Enewetak Lagoon. Bikini Atolls, 1 January 1973, Table 2, Fig. 5 2385, ,239+?7 40, u in the surface sediments of (pCi/p)