Cesium-137, /sup 134/Cs and /sup 110m/Ag in lambs grazing pasture in NE Scotland contaminated by Chernobyl fallout
The decline in Cs radioisotope levels has been studied in tissues from lambs grazing lowland pasture. The lambs were slaughtered 18 and 115 d after contamination with Chernobyl fallout. During this time the Cs activity decreased to 13% of the initial amount in animals that had continued to graze contaminated pasture and to 3.5% in animals consuming uncontaminated feed. The /sup 137/Cs concentration in grass from the field grazed by the lambs decreased with a half-time of 22 d over the period 11-100 d after contamination. The amounts of Cs radionuclides removed from the pasture by the grazing animals amounted to only 0.01% of the total, the rest remaining in the soil, with over 40% in the upper 10 mm. Small amounts of /sup 110m/Ag, found in grass, declined with a half-time of 8.9 d, and the radionuclide was found to accumulate in liver tissue.
- Research Organization:
- Aberdeen Univ., Foresterhill (Scotland)
- OSTI ID:
- 6157246
- Journal Information:
- Health Phys.; (United States), Journal Name: Health Phys.; (United States) Vol. 56:4; ISSN HLTPA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Radioiodine retention in ovine thyroids in northwestern Greece following the reactor accident at Chernobyl
Effects of the Chernobyl accident on animal husbandry and production, from a Swedish perspective
Related Subjects
Terrestrial-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560162 -- Radionuclide Effects
Kinetics
& Toxicology-- Animals
Plants
Microorganisms
& Cells
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACCIDENTS
ALKALI METAL ISOTOPES
ANIMAL FEEDS
ANIMALS
ASIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM 134
CESIUM 137
CESIUM ISOTOPES
CHERNOBYLSK-4 REACTOR
CONTAMINATION
DAYS LIVING RADIOISOTOPES
DOMESTIC ANIMALS
EASTERN EUROPE
ECOLOGICAL CONCENTRATION
ENRICHED URANIUM REACTORS
EUROPE
FALLOUT
FOOD
FOOD CHAINS
FORAGE
GRAPHITE MODERATED REACTORS
GRASS
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LILIOPSIDA
LWGR TYPE REACTORS
MAGNOLIOPHYTA
MAMMALS
MONITORING
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PLANTS
POWER REACTORS
RADIATION MONITORING
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADIONUCLIDE KINETICS
REACTOR ACCIDENTS
REACTORS
RUMINANTS
SECONDS LIVING RADIOISOTOPES
SHEEP
SILVER 110
SILVER ISOTOPES
SOILS
THERMAL REACTORS
UKRAINIAN SSR
UNITED KINGDOM
USSR
VERTEBRATES
WATER COOLED REACTORS
WESTERN EUROPE
YEARS LIVING RADIOISOTOPES