AT(45-1)-540
Contract No.:
The pattern of changing levels of radioactivity is given for the tissues
of land hermit crabs, Coenobita perlatus, from Belle lsland, Eniwetok
. nearly two years following the 1954
Atoll, during a period of
series of atomic tests. Sr/sup 90/ + Y/sup 90/,
principal long-lived fission products foumd.
and Cs/sup 137/ were the
Sr/sup 90/ levels in the
skeleton remained constant throughout the period of study.
(auth)!
ANIMALS; BONES; CESIUM 137; CRABS; FALLOUT; FISH; FISSION
Descriptors:
PRODUCTS; LIFETIME; NUCLEAR EXPLOSIONS; RADIOACTIVITY; STRONTIUM 90;
TISSUES; YTTRIUM 90
‘
Subject Codes (NSA): BIOLOGY AND MEDICINE
10/5/238
(Item 238 from file:
080122
NSA-12-004673
109)
HUMAN AND CATTLE THYROID RADIOACTIVITY ASSOCIATED WITH FALLOUT:
1955 TO OCTOBER 1956
OCTOBER
White, M.R.
California.
Univ., Berkeley.
Radiation Lab.
Publication Date: Mar. 1, 1957
15 p.
Primary Report No.: UCRL-3703
Journal Announcement: NSA12
Availability: NTIS
Document Type: Report
Language: English
Contract No.: W-7405-ENG-48
Thyroids from humans, obtained at autopsy, were followed for
radioactivity from January 1956 to October 1956. There is less than one
chance in one thousand that human thyroid tissue could have been irradiated
to the extent of 0.001 rep from I/sup 131/ fallout.
The probable value is
no more that 0.00016 rep during this period. Thyroids from cattle
Slaughtered in the San Francisco Bay Area were followed for radioactivity
from October 1955 to October 1956. Two periods of increase in
radioactivity, possibly due to smallyield detonations in Nevada, were seen
in December 1955 and January 1956. A period of high activity in cattle
thyroid, probably due to a Russian detonation, began in March, and
radioactivity from this delivered a maximum of 0.2 rep. Another period of
high activity, presumably due to the Bikini tests, began in May 1956 and
was continuing at the time this report ended. It delivered (up to October
thyroid tissue. This level of radiation exposure would produce no change in
physiological function of the thyroid and would not be detrimental to
10/5/239
079483
(Item 239 from file:
NSA-12-004034
109)
RADIOACTIVITY IN THE REEF FISHES OF BELLE
1954 TO NOVEMBER 1955
Welander,
A.D.
Washington.
Univ.,
Seattle.
Publication Date: May 17,
1957
Primary Report No.: UWFL-49
Journal Announcement: NSA12
Availability: NTIS
Document Type: Report
Language: English
Contract No.:
AT(45-1)-540
MAN; NUCLEAR
TESTING; THYROID;
~
ISLAND ENIWETOK ATOLL APRIL
Applied Fisheries Lab.
42 p.
Studies of the radioactivity ln reef fishes of Belle
(Bogombogo)
Island,
Eniwetok Atoll, were made during a period of about one year followlng the
atomic detonations in 1954.
9003b3b
cattle.
(auth)
Descriptors:
CALIFORNIA; CATTLE; FALLOUT; IODINE 131;
EXPLOSIONS; PHYSIOLOGY; RADIOACTIVITY; SAN FRANCISCO BAY;
TISSUES
Subject Codes (NSA): BIOLOGY AND MEDICINE
Thirty-four different collections were made amd
693 specimens were analyzed to determine the trend or decline of
radioactivity. The decline of radioactivity during the period under study
was generally similar in all species. The relative amount of radioactivity
per gram of tissue was greatest in the alimentary tract, with the liver,