c/kg wet weight. The levels of radioactivity in bone and muscle tissues of
fish collected during 1957 were about the same as the levels for similar
tissues collected in 1955. Gamma spectra analysis and ion-exchange methods
revealed the presence of Zn/sup 65/, Co/sup 57/, Co/sup 58/, Co/sup 60/,
Mn/sup 54, and Fe/sup 55/. Radiostrontium was found only in small amounts
(about 0.0014
mu c/kg wet weight) in the bone of fish from Kabekle Island,
Rongelap Atoll. Approximately 40 per cent of the total radioactivity in the
reef fishes was due to Zn/sup 65/, 28 per cent to cobalt, 26 per cent to
Fe/sup 55/,
and 6 per cent to other radionuclides.
(auth)
;
Descriptors:
BETA PARTICLES; BONES; COBALT 57; COBALT 58; COBALT 60;
CONTAMINATION; FISH; GAMMA RADIATION; ION EXCHANGE; IRON 55; MANGANESE 54;
MUSCLES; QUANTITY RATIO; RADIOACTIVITY; SPECTROMETERS; STRONTIUM 90;
TISSUES; ZINC 65
Subject Codes (NSA): HEALTH AND SAFETY
10/5/224
096247
(Item 224 from file:
NSA-13-002880
RADIONUCLIDES
Lowman, F.G.
109)
IN PLANKTON NEAR THE MARSHALL ISLANDS,
1956
Washington.
Univ., Seattle.
Applied Fisheries Lab.
Publication Date: Feb. 14, 1958
34 p.
Primary Report No.: UWFL-54
Journal Announcement: NSA13
Availability: NTIS
Document Type: Report
Language: English
Contract No.:
AT(45-1) 540
Radiochemical separations were made on plankton samples collected in and
west of the Eniwetok Proving Ground in September 1956.
Ion exchange resin
column and precipitation techniques were used. Fission products, mainly
Zr/sup 95/-Nb/sup 95/ and Ce/sup 144/Pr/sup 144/, contributed an average of
29% of the total radioactivity. The remaining 71% of the activity was
contributed by the non-fission radioisotopes Zn/sup 65, Co /sup 57,58,60,/
and’
Mn/sup 54/.
Radio active zinc,
cobalt,
and iron acconted for averages
of 24, 26, and 21%, respectively, of the total radioactivity. Mn/sup 54/
was present in trace amounts. Variations in ratio of occurrence for the
different non-fission products with change in geographical location was
observed. Relatively high levels of Zn/sup 65/ were centered in the area
near Bikini and Eniwetok Atolls.
The area of high levels of radioactive
cobalt and iron in comparison to Zn/sup 65/ was located approximately 480
Miles west and slightly north of Eniwetok Atoll. (auth)
Descriptors:
CERIUM 144; COBALT 57; COBALT 58; COBALT 60; FISSION
PRODUCTS; ION EXCHANGE; IRON 55; MANGANESE 54; MARSHALL ISLANDS;
MICROORGANISMS; NIOBIUM 95; PLANKTON; PRASEODYMIUM 144; PRECIPITATION;
RADIOACTIVITY; RADIOCHEMISTRY; TRACE AMOUNTS; ZIRCONIUM 95
Subject Codes (NSA): HEALTH AND SAFETY
10/5/225
095478
(Item 225 from file: 109)
NSA-13-002109
OBSERVATIONS OF RADIOACTIVE CLOUDS FROM ATOMIC TESTS
ATMOSPHERIC TRANSPORT AND EXCHANGE PROBLEMS
~
IN RELATION TO
(Beobachtungen an Radioaktiven Schwaden von Atomtechnischen Versuchen im
Sittkus, A.
Publication Date: nd
13 p.
Primary Report No.: TI-776
Note: Translated by D.A. Sinclair (National Research Council of Canada)
from Beitr. Physik Atmosphare 30, 200-206(1958)
Journal Announcement: NSA13
Document Type: Journal Translation
Language: English
Regular measurements have been made since 1963, at Freiburg, West
Germany, of the long-lived radioactive materials contained in rain water.
9003605
Hinblick auf Atmospharische Transport- und Austauschprobleme)
In 1953 when a series of atomic bomb tests took place in the Nevada desert,
U.S.A., a travelling time of 10 to 20 days was
determined for the
resulting atomic cloud. The shortest time for arrival of an atomic cloud