Table 4.
Cumulative (1979) dose equivalent summary (rem) for adults (classified as persons >16 years of age upon return to Utirik in June
1954 or to Rongelap in June 1957 and having a mean body mass >60
kg).
Nuclide
Utirik
Rongelap
Utirik
Totai-body
90sr
55Fe
137¢5
60¢5
6520
Total internal
Net external*
Total
Thyroid
0.0118
0.0329
1.13
0.507
12.5
0.0267
0.0230
1.71
0.0143
0.0757
17.4
3.87
14.2
3.19
1.85
2:02
Total internal
Net external*
Total
0.000749
0.0594
1.55
0.359
11.1
0.00169
0.0415
2.35
0.0101
0.0672
16.3
4.49
13.1
3.19
Red marrow
0.0537
0.0603
1.70
0.629
17.2
19.6
3.19
22.8
Rongelap
2.47
2.02
Testes-ovaries
0.123
0.0422
2.57
0.0177
0.103
2.86
2.02
4.88
0.000749-0.000749
0.0583~-0.0620
1.54-1.74
0.442-1.78
11.3-16.3
13.3-19.9
3.19
16.5-23.1
0.00169-0.0016
0.0736-0 .0433
2.33-2.63
0.0125-0.0520
0.0685-0.0988
2.49-2.82
2.02
4.51-4.84
Lower large intestine wall
0.225
0.0666
Total internal
Net external*
Total
0.567
0.0465
0.895
0.132
0.0910
1.73
2.02
3.75
0.000671
0.115
1.81
0.792
16.5
19.2
3.19
22.4
0.00152
0.0804
2.74
0.0223
0.136
2.98
2.02
5-00
*A value of 0.73 rads in tissue of interest per roentgen measured in air at
one meter above the surface was used to convert exposure in air to dose
equivalent.
The source was assumed to be exponential distribution of 137¢,
activity with depth in soil, typical of aged fallout (B.G. Bennett, Health
Physics 19:757-67, 1970). Because of the multidirectional nature of the
source, variation of dose with depth of organ is minimal. External doses
are adjusted for lifestyle variations (e.g., standing, sitting, fishing,
etc.).
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