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EDB7801
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Country of Origin: United States
Country of Publication: United States
:
Abstract: The Division of Operational Safety or DOS (now Safety Standards
and Compliance) portion of the Laboratory of Radiation Ecology (LRE)
Pacific Radiocology Program (formerly Johnston Atoll Program) began on
1 July 1974 and is continuing. The purpose of this program is to
determine the kinds and amounts of radionuclides distributed in the
foods, plants, animals, and soil of the Central Pacific, especially the
Marshall Islands. Five field trips were conducted for this program
between April 1974 and August 1975, and about 600 samples were
collected. Results of the analyses indicate that /sup 90/Sr and /sup
137/Cs are dominant in the terrestrial environment and, in addition,
/sup 241/Am and /sup 239,240/Pu are also important in the soil from
Bikini and Rongelap atolls. Cobalt-60 and /sup 55/Fe are predominant in
the marine environment together with naturally occurring /sup 40/K.
Amounts of radioactivity vary between atolls and between islands within
an atoll in relation to the distance from the nuclear weapons test
sites.
Bikini atoll has the highest
amounts of radioactivity,
but the
northern islands of Rongelap Atoll have only slightly lower amounts.
Rongerik and Ailinginae atolls and the southern islands of Rongelap
Atoll have similar amounts of radioactivity which are lower than Bikini
by factors of 5 to
10
or more.
Values at Utirik Atoll are lower still,
but are higher than amounts at Wotho and Kwajalein atolls. Christmas
Island in the Line Islands has the least amount of radioactivity of the
areas Surveyed for this report.;
Major Descriptors: *AMERICIUM 241 -- ENVIRONMENTAL TRANSPORT; *AQUATIC
ECOSYSTEMS -~ RADIONUCLIDE KINETICS; *CESIUM 137 -- ENVIRONMENTAL
TRANSPORT; *COBALT 60 --~ ENVIRONMENTAL TRANSPORT; *IRON 55 -ENVIRONMENTAL TRANSPORT; *MARSHALL ISLANDS -- RADIATION MONITORING;
*MARSHALL ISLANDS -- RADIONUCLIDE KINETICS; *NUCLEAR EXPLOSIONS -FALLOUT; *PLUTONIUM 239 -- ENVIRONMENTAL TRANSPORT; *PLUTONIUM 240 -ENVIRONMENTAL TRANSPORT; *STRONTIUM 930 -- ENVIRONMENTAL TRANSPORT;
*TERRESTRIAL ECOSYSTEMS -- RADIONUCLIDE KINETICS
Descriptors: AQUATIC ORGANISMS; BIKINI; CRUSTACEANS; FISHES; FOOD; PLANTS;
SAMPLING; SOILS; TIME DEPENDENCE; WILD ANIMALS
Broader Terms: ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALKALI METAL ISOTOPES;
ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; AMERICIUM ISOTOPES;
ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; BETA DECAY RADIOISOTOPES;
BETA-MINUS DECAY RADIOISOTOPES; BIOMASS; CESIUM ISOTOPES; COBALT
ISOTOPES; ECOSYSTEMS; ELECTRON CAPTURE RADIOISOTOPES; ENERGY SOURCES;
EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; EXPLOSIONS; HEAVY NUCLEI;
INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTOPES;
INVERTEBRATES; IRON ISOTOPES; ISLANDS; ISOMERIC TRANSITION ISOTOPES;
ISOTOPES; MARSHALL ISLANDS; MASS TRANSFER; MINUTES LIVING RADIOISOTOPES
7 MONITORING; NUCLEI; ODD-EVEN NUCLEI; ODD-ODD NUCLEI; PLUTONIUM
ISOTOPES; RADIOISOTOPES; RENEWABLE ENERGY SOURCES; STRONTIUM ISOTOPES;
VERTEBRATES; YEARS LIVING RADIOISOTOPES
Subject Categories: 520300*
-- Environment, Aquatic -- Radioactive
Materials Monitoring & Transport -- (1989)
510301
-- Environment, Terrestrial -- Radioactive Materials Monitoring
& Transport -- Soil -- (-1987)
510302
-- Environment, Terrestrial -- Radioactive Materials Monitoring
& Transport -- Terrestrial Ecosystems & Food Chains -- (-1987)
450200
-- Military Technology, Weaponry, & National Defense -- Nuclear
Explosions & Explosives
INIS Subject Categories: B32*
-- Water
B31
-- Land
C22
E14
10/5/963
00334311
-- Radionuclide Ecology
-- Nuclear Explosions
(Item 663 from file: 103)
5908 0b%
AIX-08-332321; ERA-03-013079; EDB-78-022938