Investigation of radiocesium distribution in organs of wild boar grown in Iitate, Fukushima after the Fukushima Daiichi nuclear power plant accident

Tanoi, Keitaro; Uchida, Katsuhisa; Doi, Chiyo; Nihei, Naoto; Hirose, Atsushi; Kobayashi, Natsuko I.; Sugita, Ryohei; Nobori, Tatsuya; Nakanishi, Teruyuki; Kanno, Muneo; Wakabayashi, Ippei; Ogawa, Miicha; Tao, Yoichi

doi:10.1007/s10967-015-4233-z

Cited by 29 publications

(22 citation statements)

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“…In this study, we found the highest concentration of radiocaesium in the skeletal muscle and lowest concentration in the brain of Japanese wild monkeys inhabiting forested areas surrounding Fukushima City. These findings agree with those of previous studies in cattle [8,9] and wild boar [17]. Similar results in wild Japanese monkeys were recently reported by Urushibara et al [26].…”

Section: Resultssupporting

confidence: 93%

“…Following the massive earthquake that struck eastern Japan on March 11, 2011, a large amount of radioactive material was released into the environment from the damaged reactor of the Fukushima Daiichi Nuclear Power Plant (FDNPP) [1][2][3][4]. To date, the effects of exposure to the radioactive materials released from the FDNPP have been investigated not only in humans [5,6] but also in blue butterflies [7], cattle [8,9], monkeys [10][11][12][13], fish [14], birds [15], pigs [16], and wild boar [17].…”

Section: Introductionmentioning

confidence: 99%

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Concentrations of 137Cs radiocaesium in the organs and tissues of low-dose-exposed wild Japanese monkeys

et al. 2020

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Objectives: Following the massive earthquake that struck eastern Japan on March 11, 2011, a large amount of radioactive material was released into the environment from the damaged reactor of the Fukushima Daiichi Nuclear Power Plant (FDNPP). After the FDNPP accident, radiocaesium was first detected in muscle samples from wild Japanese monkeys exposed to radioactive materials, and haematologic effects, changes in head size, and delayed body weight gain were also reported, but little is known about the distribution of 137 Cs in the organs and tissues of wild Japanese monkeys. Results:We detected the 137 Cs in various organ and tissue samples of 10 wild Japanese monkeys inhabiting the forested areas of Fukushima City that were captured between July and August 2012. Among muscle, brain, heart, kidney, liver, lung, and spleen, muscle exhibited the highest and the brain the lowest 137 Cs concentration. The concentration (mean ± SD) of 137 Cs in muscle, brain, heart, kidney, liver, lung, and spleen was 77 ± 66, 26 ± 22, 41 ± 35, 49 ± 41, 41 ± 38, 53 ± 41, and 53 ± 51 Bq/kg, respectively. These results can help us understand the biological effects of longterm internal radiation exposure in non-human primates.

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Section: Resultssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Concentrations of 137Cs radiocaesium in the organs and tissues of low-dose-exposed wild Japanese monkeys

et al. 2020

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“…The relative concentrations in muscle were higher than those in the other organs examined in this study. This is the same result reported by Gulakov (2014) and Tanoi et al (2016) for wild boars in Chernobyl and Fukushima Prefecture, respectively. The same result was also observed in other mammals such as abandoned cattle and wild mice in Fukushima Prefecture (Fukuda et al, 2013;Kubota et al, 2015) and pigs fed rice contaminated by the F1-NPP accident (Ohmori et al, 2014).…”

Section: Resultssupporting

confidence: 90%

Radiocaesium contamination of wild boars in Fukushima and surrounding regions after the Fukushima nuclear accident

Fuma

Kubota

Ihara

et al. 2016

Journal of Environmental Radioactivity

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Analysis of radioactivity data obtained under the food monitoring campaign in Japan indicates that elevated Cs+Cs activity concentrations in wild boar meat remained constant or slowly decreased in Fukushima and surrounding prefectures from 2011 to 2015. The activity concentrations in some samples are still over the regulatory limit of 100 Bq kg fresh weight, even in 2015. Activity concentrations of Cs in muscle of wild boars we captured in 2011 were higher than those in kidney, liver, spleen, heart and lung. A food processing retention factor, F, was 0.5 or 0.6 for Cs when the wild boar meat was boiled, suggesting that a parboiling process is effective for reduction of radiocaesium intake from wild boar meat.

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“…In 2012, members of the NPO "Resurrection of Fukushima" and researchers from the University of Tokyo started to investigate the radiocesium levels in wild boars in Iitate Village (Tanoi et al 2016). Wild boars were hunted for pest control and then the organs, tissues, contents of digestive organs, and blood were collected (Figs.…”

Section: Inspection Data From Fukushimamentioning

confidence: 99%

Wild Boars in Fukushima After the Nuclear Power Plant Accident: Distribution of Radiocesium

Tanoi

2016

Agricultural Implications of the Fukushima Nuclear Accident

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In the present chapter, I present the distribution of radiocesium in wild boars as well as the official monitoring data of wild boars from Fukushima. After the nuclear accident in 2011, the radiocesium contamination levels in wild boars from most places in Fukushima Prefecture exceeded 100 Bq/kg. The most contaminated wild boars were observed in Soso district where the radiocesium concentration in the soil was the highest in the entire Fukushima Prefecture. To understand radiocesium contamination in wild boars in more detail, we measured radiocesium concentrations in different organs and tissues of wild boars inhabiting Iitate Village in Soso district in 2012 and 2013. After capturing the wild boars, we collected 24 organs and tissues and put them into vials. Using an NaI(Tl) scintillation counter, we determined the concentrations of radiocesium ( 134 Cs and 137 Cs) and found that the levels were highest in the muscles (approximately 15,000 Bq/kg) and lowest in the ovaries (approximately 600 Bq/kg) in 2012, indicating a large variation between the organs and tissues. The trends were similar in 2012 and 2013. Observations of the contamination levels in wild boars could reveal the radiocesium availability in the forest and village ecosystem.

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Investigation of radiocesium distribution in organs of wild boar grown in Iitate, Fukushima after the Fukushima Daiichi nuclear power plant accident

Cited by 29 publications

References 13 publications

Concentrations of 137Cs radiocaesium in the organs and tissues of low-dose-exposed wild Japanese monkeys

Concentrations of 137Cs radiocaesium in the organs and tissues of low-dose-exposed wild Japanese monkeys

Radiocaesium contamination of wild boars in Fukushima and surrounding regions after the Fukushima nuclear accident

Wild Boars in Fukushima After the Nuclear Power Plant Accident: Distribution of Radiocesium

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