Table 5.
External 30-year doses for each age group.
Case
smail children
Infants and
Children and
adolescents
Men
Women
1
2.7
2.7
3.1
3.1
2
3.9
4.2
4.5
4.5
3a
3.7.
4.0
4.4
4.4
3b
3.5
3.9
4.4
4.2
4a
4.6
4.7
4.9
"SAL
4b
4.0
4.3
4.7
4.6
3
6.0
5.8
5.6
(661
6
6.0
5.8
5.6
6.1
|
a
.
All units are in ren.
Commission on Radiological Protection.
guide value and about 70% of the
While these guidance values for
30-year guide value.
exposures of individuals and of
Little margin for additional
population groups are not a
radiation doses that may be poten=
dividing line between safety and
tially received by intake of
danger, any exposures approaching
radionuclides via groundwater and
these guides are cause for careful
various food chains.
evaluation of the situation, and
from Table 4 that residents in
exposures exceeding the guides would
houses built within the interior
require consideration of remedial
of Bikini Island will receive
measures to reduce exposures and
30-year external radiation doses.
bring them within the guidelines.
exceeding the guide value.
Inhabitants in the existing houses
:
This. leaves
It is clear
As mentioned earlier, these
on Bikini Island are expected to
external doses may be enhanced by the
receive external whole-body
presence of beta rays emanating from
radiation exposures that are
beta emitters such as 904, - 90,
approximataly 49% af che annual
activities in the soil.
-21-
It appears