Contents and Daily Intakes of Gamma-Ray Emitting Nuclides, 90Sr, and 238U using Market-Basket Studies in Japan
Contents and Daily Intakes of Gamma-Ray Emitting Nuclides, 90Sr, and 238U using Market-Basket Studies in Japan
复制标题
根据日本市场篮子研究得出的伽马射线发射核素、90Sr 和 238U 的含量和每日摄入量
DOI：
10.1248/jhs.53.107
复制
发表时间：
2007
影响因子：
--
通讯作者：
K. Isomura
中科院分区：
文献类型：
--
作者：
H. Sugiyama;H. Terada;Mitsuko Takahashi;Ikuyo Iijima;K. Isomura
为了调查日本销售的食品中放射性核素的含量以及成人的每日摄入量和暴露剂量，我们进行了有关放射性核素摄入量的市场篮子研究。研究时间为2003-2005年，在日本13个城市进行了研究。包括饮用水在内的食品被分为 14 个食品组，并通过常见的烹饪程序制备样品。对各食品组测定了γ射线放射核素（人造放射性核素、放射性Cs、天然放射性核素、214Bi、212Pb等40K、U系列、Th系列），对除饮用水以外的13个食品组的混合样品测定了人造放射性核素90Sr、238U。成人的每日摄入量是根据放射性核素的浓度以及食物和饮用水的平均每日消耗量计算的。 13个城市每日137C摄入量和40K摄入量（毫贝q/人·天）分别为12.5-<79.7和57309-95746。除饮用水外的食物组中90Sr摄入量为20.8～53.6，平均值为39.2（mBq/人·天）（平均值偏差：23%）。同样，每日238U摄入量为5.9-31.1，平均值为12.6（mBq/人·天）（偏差：60%），最小值与最大值相差5倍以上，且存在地区差异。由于214Bi、212Pb等U系列和Th系列的含量低于检测下限，因此未计算其日摄入量。每日从各食物类别摄入的137C方面，以鱼贝类、奶类、肉/蛋类、蘑菇/海藻类的摄入量较高。每个食物组的每日 40K 摄入量因地区而异，但所有 13 个城市的 14 个食物组的总摄入量相似。这些食物中的40K占γ射线核素年有效剂量（μSv/人·年）的大部分，其中40K、90Sr和238U的剂量分别为130-217、0.21-0.55和0.10-0.51。
To investigate the contents of radionuclides in foods marketed in Japan and their daily intakes and exposure doses in adults, we performed market-basket studies concerning radionuclide intakes. The study period was 2003-2005, and the studies were performed in 13 cities in Japan. Foods including drinking water were divided into 14 food groups, and samples were prepared by common cooking procedures. γ-ray emitting nuclides (an artificial radionuclide, radioactive Cs, and natural radionuclides, 40K and U series such as 214Bi, and 212Pb, and Th series) were measured in each food group, and artificial radionuclides, 90Sr and 238U, were measured in a mixed sample of 13 food groups excluding drinking water. The daily intakes in adults were calculated from the concentrations of the radionuclides and mean daily consumption of foods and drinking water. The daily 137Cs and 40K intakes (mBq/person·day) in the 13 cities were 12.5-<79.7 and 57309-95746, respectively. The 90Sr intake from the food groups excluding drinking water was 20.8-53.6, with a mean of 39.2 (mBq/person·day) (deviation of the mean: 23%). Similarly, the daily 238U intake was 5.9-31.1, with a mean of 12.6 (mBq/person·day) (deviation: 60%), showing a more than 5-fold difference between the minimum and maximum values, and there were regional differences. Since the contents of the U series, such as 214Bi and 212Pb, and Th series were lower than the lower detection limits in many samples, their daily intakes were not calculated. Regarding the daily intake of 137Cs from each food group, the intakes from fish and shellfish, milk, meat/eggs, and mushrooms/seaweed tended to be higher. The daily 40K intake from each food group varied among the areas, but the total intake from the 14 food groups was similar in all 13 cities. 40K from these foods accounted for most of the annual effective dose (μSv/person·year) of γ-ray emitting nuclides, and the doses of 40K, 90Sr, and 238U were 130-217, 0.21-0.55, and 0.10-0.51, respectively.
巴基斯坦典型饮食中的铀浓度。
DOI：
--
发表时间：
2003
期刊：
J. Radiat. Res. 44
影响因子：
--
作者：
Akhter;P et al.
通讯作者：
P et al.