measurememts,
indicate that fractionation of radionuclides was prominent in
the fall-out particles. Measured R values for Ba/sup 140/ and Sr/sup 89/
based on Mo/sup 99/ were over an order of magnitude lower in the altered
particles The fissions/gram values of altered particles averaged the two
classes of particles taken from H + 50 to H + 10,000 hr showed marked
t
dissimilarities. (auth)
PRODUCTS;
FISSION
FALLOUT;
BETA DECAY;
"BARIUM 140;
Descriptors:
MOLYBDENUM 99;
MOLYBDENUM ISOTOPES;
LANTHANUM 140;
GAMMA DETECTION;
RADIOACTIVITY;
QUALITATIVE ANALYSIS;
PARTICLES;
NEPTUNIUM 239;
‘
STRONTIUM 89
RADIOCHEMISTRY;
Subject Codes (NSA): CHEMISTRY
10/5/186
(Item 186 from file:
141785
NSA-14-025340
109)
MEDICAL STATUS OF MARSHALL ISLANDERS
TO FALLOUT RADIATION
IN 1959,
FIVE YEARS AFTER EXPOSURE
Conard, R.A.; Meyer, L.M.; Sutow, W.W.; Blumberg, B.S.; Lowery, A.; Cohn,
S.H.; Lewis, W.H. Jr.; Hollingsworth, W.; Lyon, H.W.
Brookhaven National Lab., Upton, N.Y.
Nuclear-Med.
vil.
Publication Date: 1960
314-30 p.
Journal Announcement: NSA14
Document Type: Journal Article
Language: English
A medical survey of the Marshallese people in March 1959, five years
after exposure to fallout radiation, showed that the people had recovered
from the acute effects of their radiation exposure and appeared to be
generally in good health. No illnesses or diseases were found that could be
directly associated with acute radiation effects. One case of cancer and
three deaths had occurred, but with no direct relation to radiation
effects. Fertility did not appear to be affected. The incidence of
miscarriages and stillbirths appeared to be somewhat higher than in the
unexposed Marshallese, but a deficiency of vital statistics precluded
definite conclusions as to whether or not this is a radiation effect.
Suggestive evidence of slight lag in growth and development of exposed
children noted previously was re-evaluated on the basis of better age data
obtained during the latest survey. Blood platelet levels were within the
normal range but somewhat below that for the unexposed population. Only 11
cases showed residual changes in the skin from beta burns. None ~howed
any evidence of cancerous change. Possible late effects of radiation such
as shortening of life span, premature aging,
leukemia and malignancies,
increased incidence of
increased incidence of degenerative diseases,
opacities of the lens of the eyes, and genetic changes were not detected.
The original body burdens of internally absorbed fission products appeared
to be too low to have produced any acute or long-term effects. The return
of the people to the slightly contaminated island of Rongelap resulted in
some increase in body burdens of Cs/sup 137/,
However,
Zn/sup 65/, and Sr/sup 90/.
the levels were far below the accepted maximum permissibie limits,
and it is not believed any detrimental effects will result. (auth)
Descriptors:
AGE; BETA DECAY; BLOOD CELLS; CONTAMINATION; EMBRYOS;
ENVIRONMENT; FALLOUT; FETUSES; FISSION PRODUCTS; MAN; MARSHALL ISLANDS;
NUCLEAR EXPLOSIONS; PACIFIC OCEAN; PLATELETS; POPULATIONS; QUANTITY RATIO;
RADIATION INJURIES; RADIATION SICKNESS; RECOVERY; REPRODUCTION; SKIN;
STATISTICS
Subject Codes
10/5/187
140855
(NSA): BIOLOGY AND MEDICINE
(Item 187 from file: 109)
NSA-14-024410
RADIOISOTOPES AND ENVIRONMENTAL CIRCUMSTANCES: THE INTERNAL RADIOACTIVE
CONTAMINATION OF A PACIFIC ISLAND COMMUNITY EXPOSED TO LOCAL FALLOUT.
A
Symposium on Radioisotopes in the Biosphere
Cohn,
eds.
S.H.;
Robertson,
J.S.;
Conard,
Brookhaven National Lab., Upton, N.Y.
Publication Date:
1960
306-30 p
Publ: University of Minnesota
R.A.;
Caldecott,
5 0 358 8
R.S.;
Snyder,
L.A.