absorption. The results, given in Table 15, are tabulated as percent of total recovered activity in the sample, although actual chemical yield was approximately 75 percent of the total radioactivity in the samples. isotopes If the percentages of the radio- in plant and soil samples are approximately the same, then it may be assumed that the radioactive material is adsorbed onto the surfaces of the plants. The radiochemical analyses and the analytical procedures are described on page 81 of this report. Table 15 - RADIOCHEMICAL ANALYSES OF SOILS AND PLANTS, POST SHOT Percentage of Total Recovered Activity Product Rigili Rojoa Runit Engebt Cerium 32.2 25.0 18.5 21.2 Zirconium 20.8 24.5 25.5 Ruthenium 20.8 Trivalent “pare earths Calcium- Strontium CesiunRubidium 24.5 31.2 ok 6 25.7 16.0 13.5 4.6 24.2 19.3 19.3 31.5 16.6 22.0 3.2 3.6 11.1 3.0 16.8 11.3 0 0 4.0 Barium " - Engebi Triumfetta Sede a 6.5 3.6 19.8 0 -- -- 13.7 RAS 0 12.9 4.0 0 The radiochemical content of the soils from the four islands is fairly uniform with some exceptions noted in the Engebi soil. As in the soil samples, 80 to 85 percent of the radto- activity in the land plants from Engebli was found in the highly - 60act