Concentration of radiocesium in the wild Japanese monkey (Macaca fuscata) over the first 15 months after the Fukushima Daiichi nuclear disaster.
Concentration of radiocesium in the wild Japanese monkey (Macaca fuscata) over the first 15 months after the Fukushima Daiichi nuclear disaster.
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DOI：
10.1371/journal.pone.0068530
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Omi T
中科院分区：
文献类型：
--
作者：
Hayama S;Nakiri S;Nakanishi S;Ishii N;Uno T;Kato T;Konno F;Kawamoto Y;Tsuchida S;Ochiai K;Omi T
2011年3月11日，东日本发生大地震，东京电力公司运营的福岛第一核电站发生核反应堆堆芯熔毁，大量放射性物质泄漏。本研究的目的是测量居住在福岛市森林地区的日本猴（Macaca fuscata）肌肉中放射性铯134 Cs和137 Cs的浓度，并确定浓度随时间的变化以及与土壤污染水平的关系。2011年4月，在100，000 - 300，000 Bq/m2的地点捕获的猴子肌肉中的铯浓度为6，000 - 25，000 Bq/kg，并在3个月内降至约1，000 Bq/kg。然而，在2011年12月期间和之后，一些动物体内的浓度再次增加到2，000 - 3，000 Bq/kg，然后在2012年4月恢复到1，000 Bq/kg，之后保持相对稳定。肌肉放射性铯浓度的这种变化模式与大气沉降物中放射性铯浓度的变化模式相似。此外，猴子以冬芽和树皮的形成层为食，其中可能含有比一年中其他时间饮食中更高浓度的放射性铯。猴子肌肉中放射性铯浓度与捕获地点土壤污染水平显著相关。
Following the massive earthquake that struck eastern Japan on March 11, 2011, a nuclear reactor core meltdown occurred at the Fukushima Daiichi Nuclear Power Plant, operated by Tokyo Electric Power Company, and was followed by the release of large amounts of radioactive materials. The objective of this study was to measure the concentration of radiocesium 134Cs and 137Cs in the muscle of Japanese monkeys (Macaca fuscata) inhabiting the forest area of Fukushima City and to determine the change in concentration over time as well as the relationship with the level of soil contamination. Cesium concentrations in the muscle of monkeys captured at locations with 100,000–300,000 Bq/m2 were 6,000–25,000 Bq/kg in April 2011 and decreased over 3 months to around 1,000 Bq/kg. However, the concentration increased again to 2,000–3,000 Bq/kg in some animals during and after December 2011 before returning to 1,000 Bq/kg in April 2012, after which it remained relatively constant. This pattern of change in muscle radiocesium concentration was similar to that of the change in radiocesium concentration in atmospheric fallout. Moreover, the monkeys feed on winter buds and the cambium layer of tree bark potentially containing higher concentrations of radiocesium than that in the diet during the rest of the year. The muscle radiocesium concentration in the monkeys related significantly with the level of soil contamination at the capture locations.
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影响因子：
2
作者：
Hohmann, U;Huckschlag, D
通讯作者：
Huckschlag, D
影响因子：
4.6
作者：
Hiyama, Atsuki;Nohara, Chiyo;Kinjo, Seira;Taira, Wataru;Gima, Shinichi;Tanahara, Akira;Otaki, Joji M.
通讯作者：
Otaki, Joji M.
影响因子：
1.5
作者：
Beresford, NA;Broadley, MR;White, PJ
通讯作者：
White, PJ
影响因子：
2.4
作者：
Tsuji, Yamato;Fujita, Shiho;Takatsuki, Seiki
通讯作者：
Takatsuki, Seiki
影响因子：
1.2
作者：
Hayama, Shin-ichi;Nakiri, Sachie;Konno, Fumiharu
通讯作者：
Konno, Fumiharu