a due to 1376, by 3.2. achieved. However, such reduction may or may not be actually The Task Group believes that subsistence crops should not be planted on an island if use of the food produced is questionable. Measurements of radionuclide content of fruit from test plantings would be needed to determine the effectiveness of soil removal actions. Using the data of Table 8, one may assess the dose reductions that might occur due to specific cleanup actions on JANET. Table 9 shows the doses that might occur due to seven different conditions. Case DI represents the contributors to the 80 Rem bone dose of Table 2 using values for 905, and 1376. averaged over all of JANET. Case DI-1 indicates that if subsistence agriculture is limited to the area shown in Fig. 2 (i.e., along the lagoon shore) the ?°sr and 1376, levels may be reduced to such an extent that the resulting 30-yr-bone dose becomes 57 Rem. Removal of a half-thickness of 1376, (4.5 cm) in the residential areas has little effect since that action influences only the external gamma dose. Removal of successive 15 cm layers of soil in the subsistence agricultural areas, however, may reduce the bone dose by significant amounts. Removal of the top 15 cm layer, for example, may reduce the 30-year~bone dose from 57 Rem to 19 Rem, while removal of an additional 15 cm may bring the dose down to 10.7 Ren. Since soil removal-vs-bone dose reduction would possibly be most effective for pandanus and breadfruit, a variation on the estimates of Table 9 may be obtained by preferentially stripping soil in areas where these trees are to be grown. For case DI~1l, for example, if pandanus and breadfruit are grown in the subsistence agricultural areas only in sections from which 15 cm of soil have been removed, the resulting bone dose may drop from 57 Rem to 29.7 Rem (i.e., 57-39.1 + 11.8). If an additional 15 cm layer is removed, the dose may’ drop to 23.7 Rem. -ll-