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

PeerJ

article

Makiko Orita¹  Yuko Kimura²  Yasuyuki Taira¹  Toshiki Fukuda¹  Jumpei Takahashi³  Oleksandr Gutevych⁴  Serghii Chornyi⁴  Takashi Kudo⁵  Shunichi Yamashita⁶  Noboru Takamura¹ 

[1] Department of Global Health, Medicine and Welfare, Atomic Bomb Disease Institute, Nagasaki University;Department of Health and Welfare;Center for International Collaborative Research, Nagasaki University;Zhitomir Inter-Area Medical Diagnostic Center;Department of Radioisotope Medicine, Atomic Bomb Disease Institute, Nagasaki University;Department of Radiation Medical Sciences, Atomic Bomb Disease Institute, Nagasaki University

关键词: Radiocesium;    Wild mushroom;    Nuclear power plant accident;    Effective dose;   

DOI  :  10.7717/peerj.4222

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

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.

【 授权许可】

CC BY