wee 8 TABLE 3. Mean concentration of 136. 90¢,., Am, and of soil from the soil profiles on Bikini Island. Profile Pu in the top 10 cm Mean Radionuclide Concentration in pCi/g, dry + SD a ‘ £ . W376 90¢ 24) am 239,240, 7] 36 + 6.2 19+ 2.5 0.7 + 0.2 0.5 + 0.1 2 23 + 2.5 + 6.4 0.6 + 0.2 0.8 + 0.1 250 +110 9.9 + 4.8 5.9 + 3.8 2.4 4 1.3 4.3 + 2.1 3 a. 239,240 24) 250 + 120 9 53 + 28 60 + 11 10 230 + 22 440 + 38 YW 9.6+ 12 120 + 20 210 + 67 7.6+1.9 A 46 + 30 61 + 14 1.7 41.3 Cc 14+ 18 46 + 34 0.9 + D 80+ 5] 150 + 31 WW 245.3 E 57 + 99 + 15 3 + 0.6 7+ 1.3 G 45 + 13 38 + 2.7 + 0.1 8+ 2.0 I 168 + 31 110 + 41 L 150 + 71 280 + 67 N 42 + 25 35 + 20 5.2 6.8 12 + 3.8 1.9 WW o6+4£1.7 0.2 + 0.1 26 + §.8 0.4 + 0.2 18 + 5.8 4.0 + 3.3 9+ 1.7 .9 V1 +158 7.9 + 1.6 19 na + 4.8 38 j++ 8 4.4 + 3.0 8 + 8 The error term is one sample standard deviation of the values for the three incremental samples - 0 to 2.5, 2.5 to 5, and 5 to 10 cm - used to compute the mean. The value for the increment from 5 to 10 cm was weighted twice as heavily as the other two incremental values. DOE ARCHIVES