Contract No.: AT(45-1)-540
A survey of the radioactivity in the sea in the region of the North
Equatorial Current from the Marshall Islands to the Marianas Islands was
made in September 1956. Plankton samples were taken by oblique tows from
200 meters and water samples were taken from the surface, pattern of
distribution of radioactivity shows a sharp decrease east of Bikimi and a
gradual but irregular decrease west of Eniwetok. A slight degree
of
cortamination is indicated as far to the west as Guam, the western
extremity of the survey. Non-fission products account for a large
proportion of the radioactivity in plankton and fish samples. (auth)
Descriptors:
ALGAE; CONTAMINATION; DISTRIBUTION; ENVIRONMENT; FISH;
FISSION PRODUCTS; MICROORGANISMS; RADIOACTIVITY; SAMPLING; SEA; SURFACES;
WATER
Subject Codes (NSA): BIOLOGY AND MEDICINE
10/5/243
(Item 243 from file:
075522
NSA-12-000018
109)
A RADIOLOGICAL STUDY OF RONGELAP ATOLL,
MARSHALL ISLANDS,
1954-1955
Washington.
Univ., Seattle.
Applied Fisheries Lab.
Publication Date: Aug. 15, 1955
75 p.
Primary Report No.: UWFL-42
Journal Announcement: NSA12
Availability: NTIS
Document Type:
Language:
DURING
Report
English
Contract No.:
AT(45-1)540
Descriptor Groups
(Splits):
ALGAE--ANIMALS~-BIOLOGY--BIRDS-~-
CONTAMINATION--DISTRIBUTION--ENVIRONMENT --FALLOUT--FISH--INVERTEBRATES -~
MEASURED VALUES--MICROORGANISMS--NUCLEAR EXPLOSIONS--PLANKTON--PLANTS-RADIOACTIVITY --RADIOGRAPHY --SAMPLING--SOILS--WATER
ALGAE --BIRDS--COCONUTS - -ENVIRONMENT- -FALLOUT--FISH--FOOD--FRUIT--LIVER-MAN--MARSHALL ISLANDS--MEAT--NUCLEAR EXPLOSIONS--POPULATIONS--RADIATION
DOSES--ROOTS--TISSUES
Subject Codes (NSA): BIOLOGY AND MEDICINE
10/5/244
(Item 244 from file:
075518
NSA-12-000014
109)
STUDIES ON LARGE AREA SUB-FABRIC BURNS
Berkley, K.M.; Pearse, H.E.
Rochester, N.Y.
Univ.
Atomic Energy Project
Publication Date: July 5, 1957
19 p.
Primary Report No.: UR-494
Journal Announcement: NSA12
Availability: NTIS
Document Type: Report
Language: English
™-
Contract No.: W-7401-ENG-49
The detonation of shot one at Bikini Atoll on March 1, 1954, produced a
fallout of radioactive ash upon Rongelap Atoll, Marshall Islands. The
distribution of the radioactive ash on the islands and in the plants and
animals of the area has been studied and evaluated. During the first
expedition to Rongelap Atoll on March 26, 1954, biological samples were
collected and measurements made of the radiation contamination.
On three
ca
ro
2
ey
additional expeditions extensive collections of material were made for this
study, the last on January 25-30, 1955. The decline in radioactivity was
e«
measured in 1499 samples of fish, invertebrates, land plants, algae, birdsyr
plankton, soil, and water from the Rongelap area. During this study
particular emphasis was placed upon evaluation of the radioactivity in food
used by the natives. Coconut milk collected on March 26, 1954, contained
1.03 microcuries per kilogram of wet tissue while the coconut meat had 1.16
mu c/kg. By January 25-30, 1955, the level in coconut milk had declined to
0.041
mu c/kg and the meat to 0.036
mu c/kg. Fish muscle on March 26,
1954, averaged 2.74 mu c/kg and fish liver 204.0 mu c/kg. The decline to
January 25-30 was 0.10 mu c/kg for the muscle and 3.52 mu c/kg for the