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Hanford derived plutonium in Columbia River sediments

Technical Report ·
OSTI ID:6539694
; ; ;

Mass spectrometry analyses of Pu isolated from Columbia River sediments exhibit mean Pu 240/242 ratios consistent with those observed for integrated global fallout. Pu 240/239 ratios show marked deviations from accepted fallout values arguing for a second source of Pu-239. This additional Pu-239 arises from the decay Np-239 produced in reactor effluent water from the old Pu production reactors located on the Hanford Reservation. An estimated 20 to 25 percent of the total Pu inventory in sediments behind McNary Reservoir, the first down-river site of fine sediment accumulation below the Hanford Reservation, are ascribed to reactor operations.

Research Organization:
Oregon State Univ., Newport (USA). Marine Science Center; Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
DOE Contract Number:
AT06-76EV70030
OSTI ID:
6539694
Report Number(s):
DOE/EV/70030-6
Country of Publication:
United States
Language:
English

Similar Records

Hanford-derived plutonium in Columbia River sediments
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Related Subjects

510300 -- Environment
Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989)
520300* -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
COLUMBIA RIVER
DATA
DATA COMPILATION
DAYS LIVING RADIOISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FALLOUT
HANFORD PRODUCTION REACTORS
HANFORD RESERVATION
HEAVY NUCLEI
INFORMATION
ISOTOPE RATIO
ISOTOPES
MASS SPECTROSCOPY
MATERIALS
NATIONAL ORGANIZATIONS
NEPTUNIUM 239
NEPTUNIUM ISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
PLUTONIUM 239
PLUTONIUM 240
PLUTONIUM 241
PLUTONIUM 242
PLUTONIUM ISOTOPES
PLUTONIUM PRODUCTION REACTORS
PRODUCTION REACTORS
RADIOACTIVE EFFLUENTS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
REACTORS
RIVERS
SEDIMENTS
SOILS
SPECTROSCOPY
STREAMS
SURFACE WATERS
US DOE
US ERDA
US ORGANIZATIONS
WASTES
YEARS LIVING RADIOISOTOPES