Appendix Table 29 Predominant Radionuclides in Soil Profiles A and C from Bikini Island, Bikini Atoll, April 1975 Sample Depth (cm) Radionuclide concentrationin pCi/g, dry" 60.5 137... 155, 24), 1.2 +0.1 2.5 +0.2 239,240, | 90. .b Profile A (2nd BLN, Row 30) 1.1 £0.12 0. 3240.05 0. 1040.03 ns ns ns 68 +0.7 75 =) 20 +0..3 7.8 +0.2 3.1 40.12 0.1940.03 0.082+0.03 1.6 +0.1 0.32+0.07 ns¢ ns ns ns 3.0 40.3 0.55+0.19 ns ns ns ns 7.3 £0.14? 7] +1.4 6.4 +0.13 1.2 +0.02 b 0.06720.005 75 49 33. 3.4 +0.2? 0.16 +0.06 0.048+0.018 0.03440.026 0.008+0.006,, 0.01240. 002, 0.005+0. 001 89 +1.8 58 +12 18 +0.5 2.5 +0.2 <0.9 0.78+0.11 <0.9 na 4 <0.01 b —<0.002 417.5 +1.0 +0.7 4.1] +0.3 <0.5 <0.9 r 15-25 25-50 50-75 0.90+0.09 Ta ecapy grt ee moecn poe 2.5-5 5-10 10-15 Profile C (2nd BLN, behind house #40 by breadfruit) 0-2.5 2.5-5 5-10 10-15 15-25 25-50 50-75 0.59+0. 06 0.30+0.05 0.17140.03 0.06+0.03 0.044+0.02 ns ns 4] +0.5 7.6 +0.25 3.5 +0.12 2.6 +0.12 0.85+0.05 0.23+0.04 0.09+0.03 0. 70+0.09 ns ns ns ns ns ns 1.5 40.2 0.25+0.1] ns ns ns ns ns The error values for all radionuclide listed excent 90Sr 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. 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. 19 ns na oul b. COTETR ces tome oe pope ee ' 0-2.5