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
Total-body
90cr
0.0118
55Fe
137o¢5
0.0329
1.13
60co
0.507
657n
Total internal
Net external*
Total
12.5
14.2
3.19
Thyroid
0.0267
0.000749
- 8.0230
1.71
0.0143
Total
internal
Net external*
Total
19.6
3.19
22.8
0.123
0.0422
2.57
0.0177
0.103
2.86
0.0101
ll.
0.0672
13.1
3.19
3.87
0.0537
0.0603
1.70
0.629
17.2
0.0415
2.35
0.359
0.0757
2.47
2.02
16.3
Red marrow
90g,
55Fe
1376,
60¢,
652n
0.00169
0.0594
1.55
1.85
2.02
17.4
Rongelap
4.49
Testes-ovaries
0.000749-0.000749
0.0583-0.0620
1.54-1.74
0.442-1.78
11.3-16.3
2.02
4.88
13.3-19.9
0.00169-0.0016
0.0736-0.0433
2.33-2.63
0.0125-0.0520
0.0685-0.0988
3.19
2.49=-2.82
2.02
16.5-23.1
4.51-4.84
Lower large intestine wall
90s_
0.225
I3los
60¢q
6520
0.591
4.66
15.0
I5Fe
Total internal
Net external*
Total
0.0666
20.5
3.19
23.7
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
0.00152
0.0804
2.74
0.0223
0.136
19.2
2.98
3.19
2.02
22.4
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.,
etc.).
- 116 -
standing,
Sitting,
fishing,