Order number 940330-160606-96
page 3
EDB Item
-001-001
set 11 with 111 of 111 items
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'
PRIMARY REPORT NUMBER
UCRL-ID--110051
CORPORATE TEXT
PUB. DATE (YYMMDD)
LIMITATION CODE
Lawrence Livermore National Lab.,
930900
UNL
TITLE ENGLISH
Possible differences in biological availability of
isotopes of plutonium: Report of a workshop
PERSONAL AUTHOR/AFFIL
Kercher, J.R.; Gallegos, G.M. [eds.]
ABSTRACT
CA
(United States)
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
increases.
KEYWORDS
{sup 238}Pu relative to
{sup 239}Pu
PLUTONIUM 238/biological availability ;PLUTONIUM
239/biological availability ;SOILS/contamination ;FOOD
CHAINS/contamination ;SOILS;CONTAMINATION; PLANTS; FISHES;
NEVADA TEST SITE;ENIWETOK; BIKINI;ARCTIC REGIONS; CATTLE;
LOS ALAMOS
EDB Item
4
ANALYTIC TITLE ENGLISH Adsorption and desorption kinetics of cesiwm in an
organic matter-rich soil saturated with different
cations
ANALYTIC AUTHOR/AFFIL Aharoni, C. [Technion-Israel Inst. of Technology,
(Israel)];
Pasricha,
N.S.
Ludihana (India)]; Sparks, D.L.
Newark, DE (United States) ]
90034314
Haifa
[Punjab Agricultural Univ.,
[Univ.
of Delaware,