Walker M I, Walters B, Mondon K J
Environmental Safety Division, Harwell Laboratory, Oxon, UK.
Food Addit Contam. 1991 Jan-Feb;8(1):85-95. doi: 10.1080/02652039109373958.
A duplicate diet study has been carried out on a group of Harwell employees in order to investigate the food types in which radiocaesium from Chernobyl was most likely to be found, and also the intake of radiocaesium in food with relation to observed whole-body levels. The duplicate diet study indicated that the highest levels of radiocaesium were in milk and meat or fruit and vegetables. Radiocaesium concentrations in food of all types are small compared to the most restrictive generalized derived limit. Daily intakes of radiocaesium measured by the diet study, of the order of 2-3 Bq day-1, generally agreed with values calculated from whole-body measurements. Committed does from radiocaesium have been estimated from dietary intakes to be in the range 3-29 muSv year-1, while whole-body measurements indicate a range of 6-18 muSv year-1; these doses are small compared to other sources of internal irradiation and to recommended limits.
对一组哈韦尔的员工进行了重复饮食研究，以调查切尔诺贝利放射性铯最可能存在的食物类型，以及食物中放射性铯的摄入量与观察到的全身水平的关系。重复饮食研究表明，放射性铯含量最高的是牛奶和肉类或水果和蔬菜。与最严格的一般导出限值相比，所有类型食物中的放射性铯浓度都很低。通过饮食研究测得的放射性铯每日摄入量约为2 - 3 Bq/天，总体上与根据全身测量计算的值一致。根据饮食摄入量估算的放射性铯所致待积剂量在3 - 29 μSv/年范围内，而全身测量结果显示的范围是6 - 18 μSv/年；与其他内照射源和推荐限值相比，这些剂量很小。
