Table 5 Air Activity Concentrations Peterson's Results, uCi cm74 Time Post- BRAVO, h 131y Bikini Ash Results, uci cm” 133y 131r 1337 Rongelap Island 5 7 10 14 2x10710 7x1079 4x107? 2x1079 7x1079 2x107? 3x1076 4x1078 4.0x1073b 1..0x1071 3 4x10713 Ix10711 12 5x1079 17 3x10710 7x107? 1xl077 3x1078 5x10710 - 3x1076 7x1077 9x1079 - 1.4x1073 3.3x1072 8x1079 2x1077 - - Cumulated Activity Concentration, Ci s m3 . Sifo Island 5 7 5x107~10 2x1078 1x1076 5x1078 1x1077 4x10710 1x10711 - Cumulated Ci sm? - : Activity Concentration, 1x1078 3x10710 6.0x10~45 1.8x10-2, 6.9x1075 6. 9x1 079 8Multiply 3.7 x 1019 to obtain Bq m73. ultiply by 3.7 x 1019 to obtain Bq 8 m3. were irradiated with each set of iodine samples isolated from Marshall Islands’ soils (Br80). The number of initial comparison atoms and the resulting comparison activity were used to determine a production ratio. The production ratio was applied to the soil sample activity and the number of atoms of activated nuclide -l11-