18
TABLE 3 #2
RONGELAP ISLAND:
RADIONUCLIDE SOIL PROFILES® /
Average specific activity for dry soil (pci/q)
Depth
Cesiun-137
(cm)
1978
1987
1978
0-5
0-10
15
1987
-90
1978
1987
Plutonius
-239,-240
1978
1987
beers
-241
1974
1987
6.9
3.2
9
7.7
2.0
78
5.4
6.7
1.1
41
15-25
2.6
4.5
35
18
25-40
1.8
2.1
-07
08
0-40
5.0
4.6
89
35
5-10
10-15
10-20
Number of
profiles
27
10.6(7)|
Strontius
20
18
4
1.7(3)
L7
a/ fhe 1978 profiles are from Robison et al, 1982, Part 4, Appebdix B.
b/ The 1987 values are from Boikat and Paretzke (Note 8). The fiumber of
samples is given in parentheses. They are corrected back to 1978.