Document Details


Title:
RESIDUAL CONTAMINATION OF PLANTS, ANIMALS, SOIL, AND WATER OF THE MARSHALL ISLANDS ONE YEAR FOLLOWING OPERATION CASTLE FALL-OUT
Subject Terms:
REPORTS; CONTAMINATION; CASTLE OPERATION; FALLOUT; PLANTS; WATER; SOILS; SAMPLING; FOOD; ZIRCONIUM 95; NIOBIUM 95; RUTHENIUM 106; RHODIUM 106; STRONTIUM 89; STRONTIUM 90; CESIUM 137; NUCLEAR EXPLOSIONS; ALGAE; RADIATION MONITORING; BETA DETECTION; GAMMA DETECTION; BIRDS; DOSE RATES; ACTIVITY LEVELS; POTASSIUM 40; COBALT 60; ZINC 65; IRON 55; COORDINATED RESEARCH PROGRAMS; PROCEDURES; RADIOCHEMICAL ANALYSIS; EXTERNAL IRRADIATION; INTERNAL IRRADIATION; DATA; RADIATION DETECTION; RADIATION HAZARDS; COMMENTARY
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1955 Aug 12
Declassification Status:
Declassified
Document Pages:
0048
Accession Number:
NV0050090
Originating Research Org.:
UNITED STATES NAVY - DEPARTMENT OF
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THE AMOUNT AND DISTRIBUTION OF RADIOACTIVE MATERIAL REMAINING ON SEVER AL ATOLLS AND INCORPORATED INTO THE FLORA AND FAUNA OF THE MARSHALL IS LANDS WAS DETERMINED ONE YEAR AFTER THEIR CONTAMINATION BY FALLOUT FRO M THE MARCH 1, 1954 NUCLEAR DETONATION OF OPERATION CASTLE. SIGNIFICA NT AMOUNTS OF RADIOACTIVE CONTAMINATION WERE FOUOND IN ANIMALS, FOOD, PLANTS, WATER AND SOIL SAMPLES. THE HIGHEST CONCENTRATIONS OF INTERN ALLY DEPOSITED ACTIVITY WERE FOUND IN MARINE SPECIMENS TAKEN FROM THE NORTHERN RONGELAP LAGOON. MOST OF THE ACTIVITY IN THE MARINE SPECIME NS WAS CONTRIBUTED BY ZIRCONIUM-95-NIOBIUM-95 AND RUTHENIUM-106-RHODIU M-106. NO FRACTIONATION OF STRONTIUM-89-STRONTIUM-90 OCCURRED IN THE TISSUE OF THE FISH ANALYZED. RESIDUAL SOIL CONTAMINATION WAS CONFINE D TO THE TOP SEVERAL INCHES OF SOIL, WITH MOVEMENT INDICATED DOWN TO T HE LENS WATER. THE MAJOR RADIONUCLIDE FOUND IN THE TISSUES OF LAND AN IMALS AND PLANTS WAS CESIUM-137. THE ISLAND SOIL AND LAGOON WATER WER E CONTAMINATED PRINCIPALLY BY THE RARE EARTH ELEMENTS, RUTHENIUM-106-R HODIUM-106 AND ZIRCONIUM-95-NIOBIUM-95. THE AMOUNT OF ACTIVITY IN THE SPECIMENS ANALYZED WAS GENERALLY PROPORTIONAL TO THE EXTERNAL GAMMA READING IN EACH OF THE AREAS.


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