560173
-- Radiation Effects -- Nuclide Kinetics & Toxicology -~ Plants
-- (-1987)
-- Radiometric & Radiochemical Procedures
400103
INIS Subject Categories: B31*
-- Land
C22
-- Radionuclide Ecology
-- Tissue Distribution, Metabolism,
C21
Radionuclides
Bll
-- Chemical & Isotopic Analysis
10/5/960
(Item 660 from file:
00345211
Author(s):
ERA-03-015906;
Schell, W.R.
103)
INS-78-002860;
Title: Biogeochemistry of Transuranics,
26 February 1976--25 February 1977
water volumes)
Corporate Source:
Washington Univ.,
NTS-78-002254;
Bikini.
Annual progress report,
(Pu and Am separation from large
Seattle
NTS
(USA).
Coll.
of Fisheries
EDB7802
Availability: Dep. NTIS, PC A04/MF A0l.
Abstracts);
‘
EDB-78-033839
Report
Language: English
Journal Announcement:
Subfile:
(-1987)
Toxicology & Removal of
Publication Date: 28 Dec 1976
p 42
Report Number(s):
RLO-2225-T18-20
Contract Number (DOE): EY-76-S-06-2225-018
Document Type:
--
(NTIS);
TIC
INS
(Technical
(US
Atomindex
input);
Information Center).
ERA
(Energy Research
Country of Origin: United States
Country of Publication: United States
Abstract: Progress is reported on a study to evaluate the cycling of the
transuranic radionuclides in the aquatic environment, their
distribution within ecosystems, their uptake by biota and their sinks
at Bikini. This year, the study has been to evaluate the Battelle large
volume water sampler, BLVWS. Laboratory and field experiments on the
collection efficiency for Pu, Am and other radionuclides using Al/sub
2/O/sub 3/ and Chelex-100 sorption beds in fresh and salt water have
been completed. The sampler, with three or four sorption beds, has
proven to be a reliable collector for Pu and Am, giving concentration
values comparable to conventional sampling methods in laboratory
studies with known radionuclide concentrations and in field studies
where the concentrations were unknown. Possible speciation of Pu into
colloidal,
particulate,
and soluble fractions has been indicated in
both the tank and field collections. The larger volumes of water which
were processed by the BLVWS method, (4 vs. 0.09 m/sup 3/), in the near
Washington Coastal waters, gave lower detection limits for Pu
concentrations than those found by the conventional batch sample
method. Interpretations of the Pu concentrations found in sediment and
water samples collected at Bikini Atoll in 1972 and 1976 have been
made.;
Major Descriptors: *AMERICIUM -- SEPARATION PROCESSES; *BIKINI --* RADIATION
MONITORING; *FRESH WATER -- SAMPLING; *PLUTONIUM -- SEPARATION
PROCESSES;
*SEAWATER --
SAMPLING;
*TRANSURANIUM BLEMENTS
--
ENVIRONMENTAL TRANSPORT
Descriptors: AQUATIC ECOSYSTEMS; CHEMISORPTION; ENVIRONMENT; PLANTS;
TERRESTRIAL BCOSYSTEMS
Broader Terms: ACTINIDES; BIOMASS; CHEMICAL REACTIONS; ECOSYSTEMS; ELEMENTS
; ENERGY SOURCES; HYDROGEN COMPOUNDS; ISLANDS; MARSHALL ISLANDS; MASS
TRANSFER; METALS; MONITORING; OXYGEN COMPOUNDS; RENEWABLE ENERGY
SOURCES; SEPARATION PROCESSES; SORPTION; TRANSPLUTONIUM ELEMENTS;
TRANSURANIUM ELEMENTS; WATER
Subject Categories: 520300*
-- Environment, Aquatic -- Radioactive
Materials Monitoring & Transport -- (1989)
510300
-- Environment, Terrestrial -- Radioactive Materials Monitoring
& Transport -- (-1989)
400105
-- Separation Procedures
INIS Subject Categories: B32*
B31
Bll
-- Land
-- Water
-- Chemical & Isotopic Analysis
SOGnObE