Experimental determination of transfer coefficients of sup 137 Cs and sup 131 I from fodder into milk of cows and sheep after the Chernobyl accident

Journal Article · Fri Dec 01 00:00:00 EST 1989 · Health Physics; (USA)

DOI:https://doi.org/10.1097/00004032-198912000-00012· OSTI ID:5079701

Voigt, G; Mueller, H P; Proehl, G P; Paretzke, H G; Propstmeier, G; Roehrmoser, G H; Hofmann, P ^[1]

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1. GSF-Institut fuer Strahlenschutz, Neuherberg (Germany, F.R.)

Following the Chernobyl accident in April 1986, the transfer of {sup 131}I and {sup 137}Cs from feed to milk was studied under experimental and common agricultural conditions. From measurements in different dairy farms in Southern Bavaria, equilibrium transfer coefficients for cow's milk were calculated to be 0.003 d L-1 (range 0.0015 to 0.005) for {sup 131}I and 0.003 d L-1 (range 0.0025 to 0.004) for {sup 137}Cs. In feeding experiments with cows and sheep under more controlled conditions, milk transfer coefficients of 0.007 d L-1 (range 0.0055 to 0.0081) for {sup 131}I and 0.003 d L-1 (range 0.0023 to 0.0053) for {sup 137}Cs were obtained for cows, while for sheep the {sup 137}Cs transfer coefficient was higher: 0.06 d L-1. The kinetics of the Cs transfer from fodder to cow's milk can be described by two exponential terms assuming biological half-lives in milk of 1-2 d and 10-20 d. The use of a fast component with 1.5 d and a fraction of 0.8, and a slow component with 15 d, gives a good approximation to the kinetics for all cows in this experiment.

• OSTI ID: 5079701
• Journal Information: Health Physics; (USA), Vol. 57:6; ISSN 0017-9078
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CESIUM 137
UPTAKE
FOOD CHAINS
CONTAMINATION
IODINE 131
MILK
RADIONUCLIDE KINETICS
ANIMAL FEEDS
BIOLOGICAL HALF-LIFE
CATTLE
CHERNOBYLSK-4 REACTOR
FALLOUT
FEDERAL REPUBLIC OF GERMANY
REACTOR ACCIDENTS
SHEEP
UKRAINIAN SSR
ACCIDENTS
ALKALI METAL ISOTOPES
ANIMALS
ASIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BODY FLUIDS
CESIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
DOMESTIC ANIMALS
EASTERN EUROPE
ENRICHED URANIUM REACTORS
EUROPE
FOOD
GRAPHITE MODERATED REACTORS
INTERMEDIATE MASS NUCLEI
IODINE ISOTOPES
ISOTOPES
LWGR TYPE REACTORS
MAMMALS
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NUCLEI
ODD-EVEN NUCLEI
POWER REACTORS
RADIOISOTOPES
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RUMINANTS
THERMAL REACTORS
USSR
VERTEBRATES
WATER COOLED REACTORS
WESTERN EUROPE
YEARS LIVING RADIOISOTOPES
560162* - Radionuclide Effects
Kinetics
& Toxicology- Animals
Plants
Microorganisms
& Cells