page a7
ase 8 wach 102 of 102QPRICIAL USE ONLY
Order number 940406-171827-13
83
Item
150.
110.
REPORT NUMBER
70.
710.
PERSONAL AUTHOR (M)
NRDL--455
PRIMARY TITLE (M)
Residual contamination of plants, animals, soil,
and water of the Marshall Islands two years following
Operation Castle fall-out
CORPORATE SOURCE
(USA)
DATE (YYMMDD)
371. PUB.
34. CLASSIF. LEVEL TEXT
950. ABSTRACT
Weiss,
H.V.
Naval Radiological Defense Lab.,
San Francisco,
CA
560815
Unclassified
The amount and distribution of radioactive
material remaining on several atolls and incorporated
into plants and animals of the Marshall Islands was
determined two years after their contamination by
fall-out from the March 1,
1954
nuclear detonation of
Operation CASTLE. Readily detectable amounts of
radioactive contamination were found in animals, plants
and soil. Most of the activity in the edible portion of
piants and soil. Most of the activity in the edible
portion of plant specimens was contributed by
cesium-137. The major radionuclides found in the tissues
of fish was zinc-65, and that in clams, cobalt-60.
Residual soil contamination remained confined to the
801.
KEYWORD (S)
surface.
CASTLE/residual radiation ;FALLOUT/uptake ;
MARSHALL ISLANDS/radiocactive contamination ;PLANTS;
ANIMALS; SOILS; CASTLE; ENVIRONMENTAL STUDIES;FALLOUT;
UPTAKE; CESIUM 137; ZINC 65;COBALT 60;ECOSYSTEMS
Item 84
150.
110.
REPORT NUMBER
70.
710.
PERSONAL AUTHOR (M)
PRIMARY TITLE (M)
CORPORATE SOURCE
NRDL--454
Residual contamination of plants, animals, soil,
and water of the Marshall Islands one year following
Operation Castle fall-out
(USA)
DATE (YYMMDD)
Rinehart,
R.W.
Naval Radiological Defense Lab.,
San Francisco,
CA
371. PUB.
550812
34. CLASSIF. LEVEL TEXT
Unclassified
950. ABSTRACT
The amount and distribution of radioactive
materials remaining on several atolls and fneorporated
into flora and fauna of the Marshall Islands was
determined one year after their contamination by
fall-out. Significant amounts of radioactive
contamination were found in animals,
food plants,,
water
and soil samples. Highest concentrations of internally
deposited activity were found in marine specimens taken
900342 I
OFFICIAL USE ONLY