Order number 940406-165953-13
page 8
34.

36.

-001-001

set 5 with 341 of 341 items

CLASSIF.

CLASSIF.

950. ABSTRACT

LEVEL TEXT

Secret

CATAGORY TEXTRestricted Data

Radiochemical separations were made by
ion-exchange and precipitation techniques and by gamma
spectrum analyses to determine the levels of

tungsten-185 on selected biological samples from the

Eniwetok and Bikini test site and from the nearby atolls

of Rongelap and Ujelang. The isotope was identified by
its half life,

maximum beta energy and gamma energy.

High levels of W{sup 185} were found on plant-leaf and
soil samples at Belle and Janet Islands (Eniwetok Atoll),

801.

and on plankton collected 155 miles northwest of
Eniwetok Atoll during August, 1958. Lower levels were
found at Vera, Keith, and Henry Islands (Eniwetok Atoll),
Nan Island (Bikini Atoll), on the plankton near Ujelang
and Rongelap Atolls, and on samples from the latter
atolls. The W{sup 185} appeared to occur as surface
contamination with the exception of one fish sample
taken at Eniwetok Atoll in which the isotope was found
in the liver and spleen.

KEYWORD (S)

ENVIRONMENTAL STUDIES; TUNGSTEN 185;PACIFIC PROVING
GROUNDS ; PLANTS; SOILS; RADIONUCLIDE MIGRATION; PLANKTON;
RADIOACTIVE CONTAMINATION; FISHES; RAD TOCHEMICAL ANALYSIS;
LEAVES; ENIWETOK; BIKINI ; RONGELAP

Item 15

150.

REPORT NUMBER

UCRL--50000-91-7/8

110.
62.

PRIMARY TITLE (M)
Research Monthly, July--August 1991
ANALYTIC AUTHOR/AFFIL Moulthrop, P.H. [Lawrence Livermore National Lab.,

90. PRIMARY TITLE (A)

72.

710.
371.
34.

36.
950.

CA

(United States)];

Hall,

D.K.

[Science Applications

International Corp., Hanover, NH (United States) ]
PERSONAL AUTHOR/AFFIL Sefcik, J.A.; de Vore, L.; Gleason, K.; Sanford,
N.M.; Kroopnick, H. [eds.]

CORPORATE SOURCE

PUB.

Lawrence Livermore National Lab.,

States)
DATE (YYMMDD)
910800

CLASSIF.

LEVEL

TEXT

Secret

CLASSIF. CATAGORY TEXTRestricted Data
ABSTRACT

CA

(United

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