scholarly journals Activities concentration of radiocesium in wild mushroom collected in Ukraine 30 years after the Chernobyl power plant accident

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4222 ◽  
Author(s):  
Makiko Orita ◽  
Yuko Kimura ◽  
Yasuyuki Taira ◽  
Toshiki Fukuda ◽  
Jumpei Takahashi ◽  
...  
Keyword(s):  
Power Plant ◽  
Radiation Exposure ◽  
Nuclear Power ◽  
Activity Concentration ◽  
Wild Mushrooms ◽  
Internal Radiation ◽  
Activity Concentrations ◽  
Cesium 137 ◽  
In The Wild ◽  
Effective Doses

Mushrooms are recognized as one of the main contributors to internal radiation exposure from the activity concentration of radiocesium released by the accident at the Chernobyl nuclear power plant (CNNP). We evaluated the activity concentrations of the artificial radionuclides (radiocesium) in wild mushrooms collected in 2015 from Korosten and Lugine, Zhitomir region, Ukraine, located 120 km away from the CNPP. Cesium-137 was detected in 110 of 127 mushroom samples (86.6%). Based on the average mushroom consumption (5 kg per year), we calculated committed effective doses ranging from 0.001–0.12 mSv. Cesium-137 remains in the wild mushrooms even 30 years after the accident, but the committed effective doses are limited by the amount of contaminated mushrooms consumed. However, evaluation of internal radiation exposure and assessment of environmental radioactivity in the surrounding area affected by the nuclear accident are still necessary in order to relieve anxiety about internal radiation exposure, as long as the possibility of consumption of contaminated mushrooms remains.

scholarly journals Internal Radiation Exposure After the Fukushima Nuclear Power Plant Disaster

JAMA ◽  
2012 ◽  
Vol 308 (7) ◽  
pp. 669 ◽  
Author(s):  
Masaharu Tsubokura ◽  
Stuart Gilmour ◽  
Kyohei Takahashi ◽  
Tomoyoshi Oikawa ◽  
Yukio Kanazawa
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Radiation Exposure ◽  
Nuclear Power ◽  
Internal Radiation

scholarly journals STUDIES OF 137CS TRANSFER IN SOIL‐FERN SYSTEM

2005 ◽  
Vol 13 (3) ◽  
pp. 97-102 ◽  
Author(s):  
Donatas Butkus ◽  
Marina Konstantinova
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Transfer Factor ◽  
Nuclear Power ◽  
Activity Concentration ◽  
Root Systems ◽  
137Cs Activity ◽  
Chernobyl Nuclear Power Plant ◽  
Activity Concentrations ◽  
Better Than

Fern accumulates radionuclides in abundance, including 137Cs. Tranfer of 137Cs and 40K in plants which have different root systems (fern or grass), or have no roots at all (moss) was compared. Samplings were performed in regions contaminated with 137Cs after Chernobyl Nuclear Power Plant (ChNPP) accident in 1994 and 1997–2000. The male fern (Dryopteris filix‐mas) most prevailing in Lithuania was studied. Fern accumulates 137Cs more effectively than grass or moss. The average 137Cs activity concentration in fern is 180±60 Bq kg−1 and the transfer factor is 0,074 m2kg−1. The fern stipe accumulates 137Cs most of all (200±90 Bqkg‐1), the transfer factor is 0,087 m2 kg−1. Accumulation of 137Cs is influenced by the content of K in the soil. 137Cs and 40K activity concentrations in fern are higher than those in the soil what shows that fern accumulates 137Cs better than 40K. Fern can clean the soil because this plant accumulates radionuclides in its stipe rather than roots.

Measurement of Internal Radiation Exposure among Decontamination Workers in Villages near the Crippled Fukushima Daiichi Nuclear Power Plant

2013 ◽  
Vol 105 (4) ◽  
pp. 379-381 ◽  
Author(s):  
Masaharu Tsubokura ◽  
Masahiko Nihei ◽  
Katsumi Sato ◽  
Shin Masaki ◽  
Yu Sakuma ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Radiation Exposure ◽  
Nuclear Power ◽  
Internal Radiation ◽  
Fukushima Daiichi

scholarly journals Internal Radiation Exposure Dose in Iwaki City, Fukushima Prefecture after the Accident at Fukushima Dai-ichi Nuclear Power Plant

PLoS ONE ◽  
2014 ◽  
Vol 9 (12) ◽  
pp. e114407 ◽  
Author(s):  
Makiko Orita ◽  
Naomi Hayashida ◽  
Hiroshi Nukui ◽  
Naoko Fukuda ◽  
Takashi Kudo ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Radiation Exposure ◽  
Nuclear Power ◽  
Exposure Dose ◽  
Internal Radiation ◽  
Fukushima Prefecture ◽  
Radiation Exposure Dose

scholarly journals Minimal Internal Radiation Exposure in Residents Living South of the Fukushima Daiichi Nuclear Power Plant Disaster

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0140482 ◽  
Author(s):  
Junichi Akiyama ◽  
Shigeaki Kato ◽  
Masaharu Tsubokura ◽  
Jinichi Mori ◽  
Tetsuya Tanimoto ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Radiation Exposure ◽  
Nuclear Power ◽  
Internal Radiation ◽  
Fukushima Daiichi

Internal radiation exposure of Ground Self-Defense Force members involved in the management of the Fukushima Nuclear Power Plant disaster

2013 ◽  
Vol 8 (2) ◽  
pp. 87-90 ◽  
Author(s):  
Yutaka Naoi, MD ◽  
Akira Fujikawa, MD ◽  
Yukishige Kyoto, MD ◽  
Naoaki Kunishima, MD ◽  
Masahiro Ono, RT ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Radiation Exposure ◽  
Nuclear Power ◽  
Power Plants ◽  
Internal Exposure ◽  
Internal Radiation ◽  
Self Defense ◽  
Radiation Contamination ◽  
Medical Examinations

When the Great East Japan Earthquake occurred on March 11, 2011, the Ground Self-Defense Force (GSDF) was dispatched nationally to Northeast area in Japan. The highly trained GSDF members were simultaneously assigned to various missions for the Fukushima Nuclear Power Plants disaster. The missions of GSDF terminated on August 31, 2011. Special medical examinations were conducted for the members as they returned to each military unit. GSDF members who were assigned to the nuclear power plant were at risk of radiation exposure; therefore, pocket dosimeters were used to assess external radiation exposure. A few months after the mission was terminated, measurements of internal radiation exposure were performed. This is the first report of the internal exposure of GSDF members who worked in the restricted radiation contamination area. Here, we report the amounts of internal and external exposure of and the equipment used by the GSDF members.

scholarly journals Radiocesium concentrations in wild mushrooms collected in Kawauchi Village after the accident at the Fukushima Daiichi Nuclear Power Plant

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1427 ◽  
Author(s):  
Kanami Nakashima ◽  
Makiko Orita ◽  
Naoko Fukuda ◽  
Yasuyuki Taira ◽  
Naomi Hayashida ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Radioactive Cesium ◽  
Wild Mushrooms ◽  
Nuclear Disaster ◽  
Average Intake ◽  
Local Residents ◽  
Effective Doses ◽  
Fukushima Daiichi

It is well known from the experience after the 1986 accident at the Chernobyl Nuclear Power Plant that radiocesium tends to concentrate in wild mushrooms. In this study, we collected wild mushrooms from the Kawauchi Village of Fukushima Prefecture, located within 30 km of the Fukushima Daiichi Nuclear Power Plant, and evaluated their radiocesium concentrations to estimate the risk of internal radiation exposure in local residents. We found that radioactive cesium exceeding 100 Bq/kg was detected in 125 of 154 mushrooms (81.2%). We calculated committed effective doses based on 6,278 g per year (age > 20 years, 17.2 g/day), the average intake of Japanese citizens, ranging from doses of 0.11–1.60 mSv, respectively. Although committed effective doses are limited even if residents eat contaminated foods several times, we believe that comprehensive risk-communication based on the results of the radiocesium measurements of food, water, and soil is necessary for the recovery of Fukushima after this nuclear disaster.

scholarly journals Zeolite and bentonite as caesium binders in reindeer feed

Rangifer ◽  
1990 ◽  
Vol 10 (3) ◽  
pp. 73 ◽  
Author(s):  
Birgitta Åhman ◽  
Sevald Forberg ◽  
Gustaf Åhman
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Intestinal Tract ◽  
Activity Concentration ◽  
Chernobyl Nuclear Power Plant ◽  
The Body ◽  
Feeding Experiments ◽  
Activity Concentrations ◽  
Gastro Intestinal Tract

The effects of zeolite and bentonite on the accumulation and excretion of radiocaesium (Cs-137) in reindeer were studied in two feeding experiments. Six animals in each experiment were given lichens contaminated with radiocaesium from fallout after the Chernobyl nuclear power plant accident. In addition, they were fed pellets containing bentonite (Experiment I) or zeolite (Experiment II). Two animals, controls, in each experiment received no caesium-binder. The activity concentration of radiocaesium in blood was used to evalute the radiocaesium level in the body. Faeces and urine were collected to measue the excration of radiocaesium. The animals in Experiment I were depleted of radiocaesium before the start of the experiment. After three weeks, with an intake of 17 - 18 kBq Cs-137/day, the controls had reached activity concentrations of radiocaesium in blood corresponding to 4 - 4.5 kBq Cs-137/kg in muscle. Reindeer fed 23 or 46 g of bentonite per day stabilized at values below 0.8 kfiq/kg in muscle. In Experiment II, the reindeer started with radiocaesium activity concentrations in blood corresponding to 2 - 4.5 kBq Cs-137/kg in muscle. After four weeks of feeding, with an intake at about 8.5 kBq Cs-137/day, controls had increased their radiocaesium values by an average of 40%. Reindeer receiving 25 or 50 g zeolite per day decreased with 18 and 45%, respectively. Net absorption of radiocaesium from the gastro-intestinal tract was calculated at 50 -70% in animals receiving no caesium-binder. Reindeer fed bentonite had an absorption below 10% while those fed zeolite absorbed around 35%.

scholarly journals Radiocaesium activity concentrations in parmelioid lichens within a 60 km radius of the Fukushima Dai-ichi Nuclear Power Plant

2015 ◽  
Vol 146 ◽  
pp. 125-133 ◽  
Author(s):  
Terumi Dohi ◽  
Yoshihito Ohmura ◽  
Hiroyuki Kashiwadani ◽  
Kenso Fujiwara ◽  
Yoshiaki Sakamoto ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Activity Concentrations
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