EDB Item
49
PRIMARY REPORT NUMBER
TITLE ENGLISH
PERSONAL AUTHOR
CORPORATE TEXT
PUB. DATE (YYMMDD)
LIMITATION CODE
ABSTRACT
oat
Order number 940330-160606-96
-001-001
page 36
set 11 with 111 of 111 items
UCRL--53917
Estimates of the radiological dose from ingestion of
{sup 137}Cs and {sup 90}Sr to infants, children,
adults in the Marshall Islands
Robison, W.L.;Phillips, W.A.
Lawrence Livermore National Lab., CA (USA)
890217
and
UNL
In this report, we examine whether the radiological
dose equivalent due to the intake of {sup 137}Cs and
{sup 90}Sr at a contaminated atoll
in the Marshall
Islands would be greater when intake begins as an adult
than when intake begins as an infant or child. We found
that generally {sup 137}Cs contributes 97 to 98% of the
dose and
{sup
90}Sr contributes
only 2 to 3
%.
We also
found that the integral 30-, 50-, and 70-y effective
dose equivalent estimated for intake beginning as adults
is greater than that for intake beginning at any other
age.
There are two factors that cause the adult
estimated dose to be greater than the dose to infants
and children. The major factor is the consistently
higher intake of local foods, and consequently higher
intake of
{sup
137}Cs,
for adults.
The second is
a
combination of changing body weights, fractional
deposits, and biological half-life for {sup 137}Cs with
age,
and the reduced concentration of
{sup 137}Cs
in
food with time. Consequently, the estimated effective
integral dose equivalents for adults due to ingestion of
{sup 137}Cs
KEYWORDS
and
{sup 90}Sr can be used as
a conservative
estimate or intake beginning in infancy and childhood.
95 refs., 4 figs., 10 tabs.
MARSHALL ISLANDS/human populations ;INFANTS/dose
equivalents ;CHILDREN/dose equivalents ;ADULTS/dose
equivalents ;CESIUM 137;STRONTIUM 90; INFANTS; CHILDREN;
ADULTS; INGESTION; BIOLOGICAL EFFECTS;FOOD CHAINS
EDB Item
50
ANALYTIC TITLE ENGLISH Evolution of reef and atoll margin carbonates, upper
Eocene through lower Miocene, Enewetak, Marshall Islands
AUTHOR ANALYTIC
Saller, A.H.;Schlanger, S.O.
PAGE RANGE
PUB. DATE (YYMMDD)
ABSTRACT
50034 10
243
~
880200
Two wells drilled along the margin of Enewetak Atoll
penetrated approximately 1000 m of upper Eocene,
Oligocene, and lower Miocene carbonates. Strontium
isotope stratigraphy indicates relatively continuous