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PubMedDate not supplied

[Regularities of changes in 137Cs content in milk in the long term after the Chernobyl nuclear reactor accident].

Regularities of changes in 137Cs content in cattle milk in the long term after the Chernobyl accident have been analyzed. Contamination levels of haylands and pastures, soil properties, specific features of agricultural production and time after the fallout play a crucial role in 137Cs concentration changes in animal products. Trends have been studied that reflect the influence of these factors and their significance assessed. The half-life periods of 137Cs decay in milk vary over the period of 1994 to 2000 between 7.1 and 14.8 years and approach similar periods calculated for the long term after global radioactive fallout from nuclear weapons tests.

Animals↗
PubMed1997

[10 years after Chernobyl--radioactivity of mother's milk-- measurements from Tirol, Tibet and Nepal].

10 years after the Chernobyl disaster gamma radioactivity from Cs-137 was determined in 53 breast milk samples from Tyrol, as well as 9 samples from Tibet and 2 from Nepal by means of a gamma-spectrometer with a germanium detector. In contrast to the values obtained within a few days, and again 1 year after the nuclear plant catastrophe, all samples from Tyrol showed gamma radioactivity levels (median 0.07 nCi/l; range 0.02-0.20 nCi/l) which were now below the limit laid down for baby food in Austria (0.3 nCi/l-11.1 Bq). The samples from Tibet and Nepal registered a slightly higher level of gamma radioactivity (median 0.16 nCi/l; range 0.16-0.41 nCi/l).

Animals↗
PubMed1990

[Irradiation of the population of the West Slovakia Region by atmospheric fallout of 90Sr and 137Cs from 1965 to 1988].

The results of the survey show that as a consequence of the nuclear accident in Chernobyl contamination of foodstuffs with radioactive substances caused in May 1986 and additional irradiation of the population of the West Slovakian region which amounted to approximately 10-20% of the dose load derived from natural sources (cosmic radiation, radioactive substances present in the earth crust, in building materials, etc.). The mean dose load of the population was roughly 8 times higher in 1986 than in 1965, when tests of nuclear weapons had been carried out in the atmosphere and when systematic monitoring of radioactivity in foodstuffs had been implemented in the West Slovakian region. Contamination of the environment due to nuclear weapon tests reached the highest values in 1962-1963 when the dose load of the population can be assumed to have been 2-3 times higher than in 1965. In the locality of the nuclear power plant Jasl. Bohunice contamination of foodstuffs with radioactive substances was in the period of operation of the plant at the level of foodstuff contamination recorded at the reference site.

Accidents↗