Appendix Table 28 Predominant Radionuclides in Soil Profiles 1] and 12 on Bikini Island, Bikini Atoll] December 1974 Radionuclides in pCi/g, dry? Soi] Fraction 55 Fe 60 Co 125 Sb 0-2.5 2.5-5 0.25+0.23 0.49+0.23 0.171+0.03 0.1240.04 ns 0.22+0.15 3.2 40.26 3.1 40.21 <0.4 <0.4 2.9 +0.1 3.4 +0.1 0.1940.03 0.1340.03 1.3 +0.5 2.0 +0.2 3.2 40.18 ns Pit #11 (Ist BLS, well) 5-10 <0.3 35-42 <0.4 42-55 55-75 75-100 100-125 <0.3 nab na na Pit +12 (garden, house 0-2.5 2.2 +0.3. 2.5-5 4.2 40.4 5-10 1.9 +0.3 10-15 5.2 +1.3 15-25 4.8 +0.4 25-50 50-75 af we? 75-100 ns 0.24+0.15 ns nsb ns ns ns 0.03+0.02 ns ns ns ns ns ns ns #24) 1.9940.12 2.3 +0.3 3.3 40.3 3.5 +0.13. 3.1 +0.10 ns ns ns 1.3 40.38 1.1 40.27 ns ns 0.1640.03 ns 0.3740.12 ns 14.9 +0.3 13. +0.3 5.1 +0.2 162 159 16 31 +1.0 +0..5 +0.2 -+0.4 7.7 +0.2 32 10 ©+0.4 +0.23 1.0 +0.05 155 Eu 16» +0.8 +2 +2 +0.7 40.7 =+0.3 0.164+0.03 0.48+0.05 24) Am 0.1140.06 0.10+0.07 0.24+0.08 0.20+0.10 4.2 +0.1 3.3 +0.1 ns ns 8.5 40.3 7.7 +0.2 ns ns ns ns ns ns 0.16+0.07 ns ns 0.12+0.04 98 98 133 120 134 t ns 2.8 3.7 5.7 5.4 4.5 +0.1 +0.3 +0.4 +0.16 +0.13 ns ns ns ns ns ns ns 5.4 6.5 9.2 9.8 8.5 +0.3 +0.8 +1.0 +0.4 +0.33 ns ns ns 239,240 7 Pu 90 Sr 0.55 +0.04 0.51 +0.02 0.16 +0.01 17 16 0.53 0.47 +0.3 0.3 +0.04 +0.02 0.20 +0.01 17 13 + 3.6 + 1.6 65 115 27 34 +12 + 2.3 «+ 0.5 + 0.7 31 18 + 0.6 + 0.8 0.16 +0.02 0.041+0. 005 <0.02 na 12 14 23. 2] 14 +0.5 +0.3 +0.5 +2.1 °#+0.6 0.08 +0.1 <0.001 : t 9.0+ 0.8 24 +0.5 3.9+ 0.2 0.6+ 0.1 139 157 264 282 219 + 2.8° + 3.1¢ + 5.3 + 5.6° +4,4¢ 13 + 0.3° 135 + 2,7° 4.3+ 0,2° a. The error values for all radionuclide listed excent 995). and Pu are two-sigma, propagated, counting errors for a single sample. The error value for 90Sr and Pu is the two-sigma counting error for a single sample plus an analytical error. b. ns na c. Analyses performed by McClellan Central Laboratory, Sacramento, California. not significant; the net sample count is less than the two-sigma, propagated, counting error. not analyzed. 09 10-15 15-23 23-30 30-35 137 Cs t