Pietrzak-Flis Z, Chrzanowski E, Dembinska S
Department of Radiation Hygiene, Central Laboratory for Radiological Protection, Warsaw, Poland.
Sci Total Environ. 1997 Sep 6;203(2):157-65. doi: 10.1016/s0048-9697(97)00144-7.
Intake with food and water of 226Ra, 210Pb and 210Po was determined for an adult population in regions of central, northern and northeastern Poland. The content of radionuclides was determined in the daily diet and, in the central region, also in foodstuffs and drinking water. The annual intake with foodstuffs was estimated on the basis of their average annual consumption. The 226Ra intake in northeastern Poland was approximately 17% higher than the overall average, correlating well with the higher concentration of this radionuclide in the soil. The 210Po/210Pb ratio was close to unity in the continental regions, whereas at the Baltic Sea coast it was approximately 1.5. The latter value can be ascribed to a larger consumption of fish for which the 210Po/210Pb ratio was found to be approximately 10. In central Poland the largest intake of 226Ra was with flour and vegetables (contribution approx. 60%), the largest intake of 210Pb was with flour and meat (approx. 50%) and the largest intake of 210Po was with fish (approx. 34%). From the intake and dose coefficient, annual effective doses were calculated. The dose from 210Pb and 210Po was approx. 54 mu Sv year-1, and the dose from 226Ra was approx. 4 mu Sv year-1.
对波兰中部、北部和东北部地区的成年人群体，测定了其通过食物和水摄入的镭-226、铅-210和钋-210。测定了日常饮食中的放射性核素含量，在中部地区还测定了食品和饮用水中的含量。根据食品的年平均消费量估算了通过食品的年摄入量。波兰东北部的镭-226摄入量比总体平均值高约17%，这与该放射性核素在土壤中的较高浓度密切相关。在大陆地区，钋-210/铅-210比值接近1，而在波罗的海沿岸约为1.5。后一数值可归因于鱼类消费量较大，其钋-210/铅-210比值约为10。在波兰中部，镭-226的最大摄入量来自面粉和蔬菜（贡献约60%），铅-210的最大摄入量来自面粉和肉类（约50%），钋-21^0的最大摄入量来自鱼类（约^04%）。根据摄入量和剂量系数计算了年有效剂量。铅-210和钋-210的剂量约为54微希沃特/年，镭-226的剂量约为4微希沃特/年。
