Report Number(s):
Order Number:
CONF-9008144--Summ.
UCRL-ID-110051
DE94003878
Contract Number
(DOE):
W-7405-ENG-48
Availability:
Distribution:
OSTI; NTIS;
(Report) :1
cowed
Document Type: Report; Conference Literature
Language: English
Journal Announcement: EDB9403
GPO Dep.
MN-702
INIS;
(MF):4
Subfile:
ERA
(Energy Research Abstracts); ETD (Energy Technology Data
Exchange); INS (US Atomindex input); NTS (NTIS).
IMS (DOE coritractor)
US DOE Project/NonDOE Project: P
Country of Origin: United States
Country of Publication: United States
Abstract: This paper presents the results of a workshop conducted on the
apparent different bioavailability of isotopes [sup 238]Pu and [sup
239]Pu.
There is a substantial body of evidence that
[sup 238]Pu as
commonly found in the environment is more biologically available than
[sup 239]Pu. Studies of the Trinity Site, Nevada Test Site from
nonnuclear and nuclear events, Rocky Flats, Enewetak and Bikini, and
the arctic tundra support this conclusion and indicate that the
bioavailability of [sup 238]Pu is more than an order of magnitude
greater than that of
[sup 239]Pu.
Plant and soil
studies
from
controlled environments and from Savannah River indicate no isotopic
difference in availability of Pu to plants; whereas studies at the
Trinity Site do suggest a difference. While it is possible that these
observations can be explained by problems in the experimental procedure
and analytical techniques, this possibility is remote given the
ubiquitous nature of the observations. Studies of solubility of Pu in
the stomach contents of cattle grazing at the Nevada Test Site and from
fish from Bikini Atoll both found that [sup 238]Pu was more soluble
than [sup 239]Pu. Studies of the Los Alamos effluent stream indicate
that as particle size decreases, the content of [sup 238]Pu relative to
{sup 239]Pu increases.
Major Descriptors:
*FOOD CHAINS -- CONTAMINATION;
*PLUTONIUM 238
--
BIOLOGICAL AVAILABILITY; *PLUTONIUM 239 -- BIOLOGICAL AVAILABILITY;
*SOILS ~- CONTAMINATION
Descriptors: ARCTIC REGIONS; BIKINI; CATTLE; ENIWETOK; FISHES; LOS ALAMOS;
NEVADA TEST SITE; PLANTS
Broader Terms: ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY
RADIOISOTOPES; ANIMALS; AQUATIC ORGANISMS; CRYOSPHERE; DEVELOPED
COUNTRIES; DOMESTIC ANIMALS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY
ION DECAY RADIOISOTOPES; HEAVY NUCLEI; ISLANDS; ISOTOPES; MAMMALS;
MARSHALL ISLANDS; MICRONESIA; NATIONAL ORGANIZATIONS; NEW MEXICO; NORTH
AMERICA; NUCLEI; OCEHANTA; PLUTONIUM ISOTOPES; POLAR REGIONS;
RADIOISOTOPES; RUMINANTS; SILICON 32 DECAY RADIOISOTOPES; SPONTANEOUS
FISSION RADIOISOTOPES; URBAN AREAS; US DOE; US ORGANIZATIONS; USA;
VERTEBRATES; YEARS LIVING RADIOISOT; YEARS LIVING RADIOISOTOPES
Subject Categories: 540230*
-- Environment, Terrestrial -- Radid@active
Materials Monitoring & Transport -- (1990-)
560162
-- Radionuclide Effects, Kinetics, & Toxicology -- Animals,
Plants, Microorganisms, & Cells
INIS Subject Categories: B3110*
-- Radioactive materials monitoring &
transport
C2120
-- Radioisotope effects, kinetics, & toxicology in animals,
plants & microorganisms
10/5/303
(Item 3 from file:
103)
03599177
EDB-94-015143
Title: Adsorption and desorption kinetics of cesium in an organic
matter-rich soil saturated with different cations
Author(s): Aharoni, C. (Technion-Israel Inst. of Technology,
(Israel));
Pasricha, N.S.
(India));
Sparks, D.L. (Univ. of Delaware,
Source: Soil Science
(United States)
v 156:4.
0038-075x
Publication Date: Oct 1993
Haifa
(Punjab Agricultural Univ., Ludihana
Newark, DE (United States) )
Coden: SOSCAK
ISSN:
p 233-239 59035654