Charlea L. Yunham, M.D,, Orector
June 15, 1956
Division of Biclogy and Medicine
Gordon M. Lunning, Health Physicia’
Division of
“tc ogy and Medicine
ATP TD
RONGELAP SESVY ats
I have just made 4 quick run through the final report from HASL
on their analysis of the samples from the Rongelap Survey, October
1955,
l.
There are “our nointa vou mav “ea interested in:
In your memorandum to Dr. Ui by .n the middle of April, 1956,
it was estimated that the cocomtsa wth the highest contamination
might be at-ut
, IC Sunshine Un‘ta
1,200 3.u.
2.
The HASL report indicates
In the -ame memorandum it was es*imated the highest activity
in the vegetable-fruit supply might »e 7,700 s.u.
The average HASL
value (minus the squash and arrowroo’. data) is about 900 s.u.
arrowroot was reported at 5,500 s,u.
The
There were no data given on
Strontium-9C “or squash in the final report, but judging from the
relative mixed fission product activ.ties, it would be higher than
arrowroot. The differences between “he estimates and final report
may be principally accounted for in -he substantially higher percentage of ‘alcitum actually founce > the samples compared to the
original oertimae’es.
3.
The averave activity of “igh aus:le .« 77 s.u.
4. Due to the iizh nercentage of Ua.cium in the soils, the measured
S.u.
are surstantially lower than those estimated by Dr. Libby. The
highes* wae 9 @ ‘he next Phe ar’ ons ‘owast 9.° s.u.
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