Procházka H, Brunclík T, Jandl J, Jirásek V, Novosad J, Hampl J
Výzkumný ústav veterinárního lékarství, Brno.
Vet Med (Praha). 1990 Feb;35(2):119-28.
An investigation of 25,000 samples of foodstuffs and feedstuffs in Czechoslovakia, contaminated by fall-out cesium after the accident in the Chernobyl nuclear power plant, performed from May 5, 1986 to March 31, 1988, revealed that both the values of cesium transfer-factors in food--animal tissues--milk transitions and the values of biological half-life of cesium are functions of internal and external conditions of contamination. Organism individuality as the main internal condition causes the variance of about +/- 50% of the mean value of the respective transfer-factor. Through the external conditions, mainly the environmental contamination level, type of ingested food and time of ingestion, the mean values of transfer-factors are influenced up to 500%, e.g. to the value of 0.5. But this value converges with growing up contamination of food and environment to the limit of 0.3. The first two to three biological half-lives after the last ingestion of contaminated food are up to ten-times shorter than those at stabilized state.
1986年5月5日至1988年3月31日期间，对捷克斯洛伐克境内因切尔诺贝利核电站事故受沉降铯污染的25000份食品和饲料样本进行了调查，结果显示，铯在食物-动物组织-牛奶转移过程中的转移因子值以及铯的生物半衰期值均是污染内部和外部条件的函数。作为主要内部条件的生物体个体性导致各自转移因子平均值出现约±50%的差异。通过外部条件，主要是环境污染水平、摄入食物的类型和摄入时间，转移因子的平均值会受到高达500%的影响，例如达到0.5的值。但随着食物和环境污染程度的增加，该值会趋近于0.3的极限。在最后一次摄入受污染食物后的最初两到三个生物半衰期比稳定状态下的半衰期短至十分之一。
