Appendix Table 26
Predominant Radionuclides in Soil Profiles 1, 2 and 3 from Bikini Island, Bikini Atoll, April 1974
Radionuclide concentration in pCi/g, dry*
Sample
Depth(cm)
60-4
1376,
155,
are
239,240, |
90...
Profile #1 (Behind first house south of the center base-line)
0-2.5
2.5-5.0
5-10
0.27 +0.05
0.35 +0.05
0.37 +0.05
27
37
40
+0..4
+0.5
+0.5
0.32+0.08
0.42+0.08
0.48+0.08
0.39+0.23
0.92+0.23
0.77+0.23
0.44 +0.04
0.53 +0.06
0.42 +0.10
16
22
19
#+
+
#+
4.2
5.8
2.0
15-25
25-50
0.45 +0.06
0.26 +0.04
38
13
0.4
«-+0.3
0.66+0.08
0. 32+0.05
1.2 40.23
0.55+0.11
1.3 +0.08
0.29 +0.02
14
15
+
+
1.4
2.8
40.2
0.23+0.08
10-15
50-75
75-100
100-115
115-130
0.30 +0.05
0.04 +0.03
0.10 +0.04
0.13 +0.03
0.09 +0.04
40
+0.5
0.12+0.04
7
11
40.3
9.7 +0.2
0.46+0.07
nsb
0.16+0.06
0.16+0.06
0.734+0.14
ns
ns
0.22+0.09
0.33+0.16
0.76 +0.04
0.40 +0.04
0.20 +0.06
0.48 +0.02
ns
14
+
8.54
4.6 +
9.2 +
0.17+
2.8
17.1
1.2
1.0
0.09
Profile #2 (Row #24, south of the center base-line)
0-2.5
2.5-5.0
5-10
10-15
15-25
25-50
50-75
75-100
100-125
0.27 +0.05
0.38 +0.06
0.34 +0.05
0.27 +0.05
0.15 +0.04
0.15 +0.04
0.17 +0.04
ns
0.04 +0.03
20
26
23.
20
=6—+0.4
+0..4
»=+40.4
+0.3
8.8 +0.22
6
+0.20
2.9 +0.14
0.68+0.07
0.17+0.05
0.4540. 06
0.5140.07
0.4140.08
0.424+0.07
0.25+0.06
0.28+0.04
0.19+0.06
. ns
ns
0.66+0.12
0.91+0.14
0.4240.22
0.73+0.22
0.40+0.16
0.37+0.09
0.27+0.16
0.13+0.08
ns
0.84 +0.08
0.76 +0.10
0.82 +0.04
0.63 +0.04
0.44 +0.10
0.21 +0.02
0.38 +0.02
0.074+0.010
<0.008
5.6 +
20
7
15
+
+
+
1.1
5.6
24
2.8
10
+ 2.2
7.1 + 1.0
2.3+ 0.4
2.8+ 0.8
<0.37
Profile #3 (Row #24, north of the first base-line south)
0-2.5
2.5-5.0
5-10
10-15
15-25
25-35
35-50
50-75
5.2
4.5
2.3
1.7.
1.1
0.15
+0.22
+0.41
+0.13
+40.13
+0.069
+0.067
0.041+0.031
0.034+0.032
380
320
150
97
81
7.7
41.9
3.5
+2.0
0.95
+0.56
40.35
4.2 +0.16
2.4 +0.14
7.3
6
2.5
1.7
1.2
+0.25
+0.48
+0.34
40.14
+0.08
ns
0.12+0.09
ns
15
13.
5.8
3.8
2.8
0.56
-+1.0
+0.97
+0.31
+0.17
ns
ns
ns
9.3
9.2
2.6
2.5
2.3
0.19
+0.2
+0.8
+0.10
+0.12
+0.1
+0.02
0.019+0. 002
0.042+0.008
370
310
150
99
81
13.
+100
=+ 30
#+ 13
+ 9.2
+12
+ #«21.7
<0.21
ns
wn
©
75-100
ns
0.43+0.06
ns
ns
0.081+0.014
ns
a. The error values for all radionuclide listed except 90sr and Pu are two-sigma, propagated, counting errors for a
single samp le. The error value for 90Sr and Pu is the two-sigma, counting error for a single sample plus an
b.
analytical error.
ns = not significant; the net sample count is less than the two-sigma, propagated, counting error.