Pietrzak-Flis Z, Orzechowska G
Department of Radiation Hygiene, Central Laboratory for Radiological Protection, Warsaw, Poland.
Health Phys. 1993 Nov;65(5):489-92. doi: 10.1097/00004032-199311000-00003.
The content of 239,240Pu was determined in the daily diet collected in northeastern Poland (Bialystok) from March 1987 to May 1992. The estimated annual intake of plutonium decreased from 774 mBq y-1 in the first year after the Chernobyl accident down to approximately 90 mBq y-1 in the sixth year. Large fluctuations of daily intake in the first 2 y suggested that a large fraction of plutonium in the daily diet originated from the external contamination. Assuming the fractional absorption factor of 10(-5) for externally contaminated foodstuffs and 10(-3) for root uptake, the assimilated 239,240Pu would be in the range from approximately 0.02 mBq up to approximately 2 mBq for the period studied.
测定了1987年3月至1992年5月在波兰东北部（比亚韦斯托克）收集的日常饮食中的钚239、钚240含量。钚的估计年摄入量从切尔诺贝利事故后第一年的774毫贝克勒尔/年降至第六年的约90毫贝克勒尔/年。头两年每日摄入量的大幅波动表明，日常饮食中很大一部分钚来自外部污染。假设外部污染食品的分数吸收因子为10^(-5)，根部吸收的分数吸收因子为10^(-3)，在所研究期间，吸收的钚239、钚240范围约为0.02毫贝克勒尔至约2毫贝克勒尔。
