period.
fie standard deviation was in general 30% of the mean value for all age
and sex subgroup distributions.
the fact
and
that
65
This less pronounced variation may be due to
.
.
Zn measurements took place over a three year interval while
90,
137,
.
.
.
Cs occurred over a 23 year interval and thus was contained in a more
homogeneous population than were the longer lived nuclides.
.
.
.
90
.
Figures 22 and 23a and 23b summarize the
Sr dose equivalent results for
individuals at Rongelap.
In this analysis only the ingestion pathway was considered important.
Al~
though some radioactivity would enter the body via resuspension and direct inha~
lation pathways, it is known that the ratios of food and fluid intake to blood
relative to airborne intake to blood, for the stable naturally occurring analogs
to the radionuclides considered here, are as follows:
Co > 3000
Zn > 130
Fe
550
Sr > 10,000
Cs
400
22