C
c
Table 5.
External 30-year doses for each age group.
Case
Infants and
small children
Children and
adolescents
Men
Women
ot
2.52
2.52
2.85
2.88
2
3.80
4.09
4.34
4.39
3a
3.62
3.96
4.30
4.26
3b
3.35
3.79
4.19
4.09
4a
4.16
4.39
4.63
4.69
4b
3.89
4.21
AASB
4.51
5
5.69
5.53
5.37
5.83
6
5.69
5.53
5.37
5.83
.
to about 0.28 rem during the first year and 5.6 rem over 30 years.
between the various age groups for each are given in Table 5.
The dose variations
Since the adults are
expected to spend a considerable fraction of their time within the interior of Bikini
Island as well as on other islands, their dose levels are slightly higher than those for
the children.
These differences, however, are expected to be somewhat overestimated
because aging is not considered in the calculations.
These doses. may be compared with the appropriate guide values, given in the title
of Table 4, which are those set forth by the International Commission on Radiological ©
Protection.
While these guidance values for exposures of individuals and of population
groups are not a dividing line between safety and danger, any exposures approaching these
guides are cause for careful evaluation of the situation; and exposures exceeding the
guides would require consideration of remedial measures to reduce exposures and bring
them within the guidelines.. Inhabitants in the existing houses onBikini Island are
expected to receive external whole-body radiation exposures that are approximately 40%
of the annual guide value and about 70% of the 30-year guide value.
This leaves little
margin for additional radiation doses that may potentially be received by intake of.
radionuclides via groundwater and various food chains,
Fram the data of Table 4, it is
clear that residents in houses built within the. interior of Bikini Island will. receive
30-year external radiation doses exceeding the guide value.