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K. B. Fie in, foneral Manager
C.
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Dunhaa,
M,
C.,
Director
Division of Etiology and Maa‘~ ine
RADTATIO? LEVELS OW aUNGELAP LSLa’
In our Staff Paper AEC 125/30, datei February 6, 1957 concerning
the return of the Rongelapese to their home island, we predicted
*- - - It is difficult to extrapolate precisely far into the future,
but the data suggest that the gamma doses on Rongelap Island would
not greatly exceed (if at all’ °.“ soentgens for the first year of
reoocupancy,
with lesser doses ‘n sibaeyuent years. - -
-*
On June 25, 1957, just prior to the actual return of the Rongelapese,
a radiological survey was made of the ganma levela on Rongelap Island.
These data were attached in the form of a mamorandum with accompanying maps from Mr. Ernest Wynkoop tc Or. Gordon M. Dunning. You will
note that the average gamma dose ra*e on the Island on June 25, 1957
was about
.7 zilliroentgens per ain
(,26 roentgens per year).
You may wieh to transmit this information to Dr. Libby, since he
has manifestec keen interest im thane aatters,
Enclosures
ni ae
1.
(7)
Memo to Gordon M. Dumning, DBM fr Ernest Wynkoop,
Chf
Eniwetok Br., Test Div., EPG, dtd 6/27/57
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samma Radiologice: Suovev cf Rongelap and
4neastok Islands
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