1.
Introduction
The purpose of this appendix is to evaluate the potential annval
bone doses for adults and children for the six living ratterns considered
in the Enewetak Radiological Survey Report (NVO-140).
The done doses
presented in NVO-140 were calculated for mineral bone for adults as
integrated doses for 5-, 10-, 30-, and 7O0-yr periods.
Bone and whole-
body doses to children were not considered separately because in most
eases the doses predicted for adults are usually a good estimate of the
dose to children.
For example, the external garma contributes similarly
3
a
to both adults ani children.
~
:
2
Strontium-90 and
os
3To5 contribute over 95%
of the food-chain dose and there is evidence to show that doses to
:
a
*
.
children from ingestion of
.
sen
a
Strontium-9O differs from
127
~
1
>
Cs are usually
iess
than +these
137
to adults.
+
:
~“'Cs.
Doses to children can exceed adult
doses; however, the additional dose increment to children over the
First?
lito 5 yr isnot iarze ani increases the integral 30- ana 7C-yr doses by
With the uncertainties
vo
only a few percent.
involved in sther carts of
be
we
(D
Bs
G
t
ad
t ’
differentiation between child an:
»
Oh
the dose assessment, for examrle the actual ciet at time of return, the
in the tables.
Because of the magnitude of some of the 30-yr intesral bene doses, it
was decided that arnual bone doses should be evaluated to indicate the
living patterns and agricultural situations which are within FRC cuides
for annual bone doses.
The more detailed assessment of bone doses is
directed at estimating the dose to the critical cell porulation at risk