Polonium-210 and lead-210 in marine organisms: Intake levels for Japanese
Polonium-210 and lead-210 in marine organisms: Intake levels for Japanese
复制标题
DOI：
10.1007/bf02068659
复制
发表时间：
1994-02
影响因子：
1.6
通讯作者：
Masayoshi Yamamoto;Touru Abe;J. Kuwabara;K. Komura;K. Ueno;Yukio Takizawa
中科院分区：
文献类型：
--
作者：
Masayoshi Yamamoto;Touru Abe;J. Kuwabara;K. Komura;K. Ueno;Yukio Takizawa
为了解210 Po和210 Pb在海洋生物中的含量和分布情况，并估算其从海洋食物中的摄入量，对主要采自日本东北部的30种海洋生物进行了210 Po和210 Pb的含量测定。鱼类中分别为0.6-26和0.04-0.54 Bq/kg（湿重），软体动物、棘皮动物和脊索动物中分别为0.5-220和0.2-43 Bq/kg（湿重），藻类中分别为2.8-4.3和0.4-1.3 Bq/kg（湿重）。210 Po相对于210 Pb在所有样品中的积累量都较高。根据海产品消费量和海产品生产率的统计数据，估算了210 Po和210 Pb的摄入量分别为0.48-0.69和0.022- 0.042Bq/d。
The concentrations of210Po and210Pb were determined in about 30 species of marine organisms collected mainly from the north-easterm region of Japan to know the levels and distributions of these radionuclides and to estimate their intake levels from marine foods.210Po and210Pb showed a wide range of concentration in species: 0.6–26 and 0.04–0.54 Bq/kg (wet wt) in fishes, 0.5–220 and 0.2–43 Bq/kg (wet wt) in molluscs, echinoderms and chordatas, and 2.8–4.3 and 0.4–1.3 Bq/kg (wet wt) in algae, respectively. Higher accumulation of210Po relative to210Pb was found in all of the samples analyzed. The intake levels of210Po and210Pb by marine foods consumption were roughly estimated to be 0.48–0.69 and 0.022–0.042 Bq/d per person, respectively, on the basis of the statistical data on the consumption of seafood and/or production rates of marine foods.