., .

;.

,-

.
#-

Miltenberger to McCraw

-2-

September 25, 1979

count the minimum sample size required for every sex and age category. This
was due to a lack of adolescents on the island. According to the magistrate,
we whole body counted all adolescent males and females who were currently
living on Rongelap Atoll.
At Utirik, there were sufficient persons present on the atoll to obtain
the desired sample size. Occasionally more than thirteen persons from a given
age or sex category were whole body counted. In total, eighty-three individuals
participated !in.the bioassay program and eighty-eight were whole body counted.
The population means, standard deviations, and ranges, along with the previous
results as reported by S. Cohn in 1974 and 1977 for each sex and age category
are listed in Table 2. From these data, it is clear that the 137CS mean body
burdens have continued to decline. Appendix B lists the current individual
body burden results along with those which have been reported over the ~ast
five years.
We also selected standard environmental monitoring stations. As at
Rongelap, these specific locations will permit us to observe the yearly variations
between the soil-vegetation activity concentrations.
Finally, the windmill was extended ten feet. This should place the blades
sufficiently above the coconut trees to avoid the damping of air currents which
prevented this unit from supplying power for our air sampling equipment. As
at Rongelap, the condition of the batteries and the lack of steady airflow from
the trade winds means that January may offer the first three-month air sample.
At this time, urine samples have yet to bereceived from Kwajalein. Dose
equivalent commitments and body burdens from 90Sr will be computed as soon as
the samples are received and processed.

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