@article{oai:kanazawa-u.repo.nii.ac.jp:00055409,
 author = {Tazaki, Kazue and Nakano, Mikio and Takehara, Teruaki and Ishigaki, Yasuhito and Nakagawa,  Hideaki and 田崎, 和江 and 中野, 幹夫 and 竹原, 照明 and 石垣, 靖人 and 中川, 秀明},
 issue = {2},
 journal = {地球科学, Earth Science},
 month = {Mar},
 note = {2011年3月11日に発生した福島第一原発事故により放射能汚染した福島県南相馬市原町区馬場の農業用水にプラスチック製品を7ヶ月間浸して置いたところ,全9試料のうち3試料において放射線量の上昇が認められた.そのカーペット,PE防鳥網,荷造り用ひもの3種類について詳細な分析・観察を行った.特に,カーペットの繊維の放射線量が高く,ゲルマニウム半導体検出器による分析では,セシウム134とセシウム137が検出された.また,蛍光X線分析により,Rb,Sr,Nb,Pbも認められた.分析電子顕微鏡観察によれば,この繊維の表面には粘土の微粒子といっしょにケイソウが繁茂しており,Rb,Sr,Pbが濃集していた.放射能汚染した農業用水に浸したプラスチック繊維の表面にはケイソウが多数生息し,粘土の微粒子とともに放射性物質を吸着することが明らかになった., After the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident on 11 March, 2011, the high radioactive dosage was found in polluted water for agriculture use at Baba, Haramachi, Minami-Soma, Fukushima Prefecture, Japan. Field experiment for decontamination of water had been studied by using commercial plastic materials. The agricultural water comes from Tetsuzan dam is full of radioactive-contaminated water. Experimental analysis showed that the plastic materials can take up radioactive elements for several months soaked in the polluted agricultural water. The quantitative analyses using X-ray fluorescence analysis, Ge semiconductor and scanning electron microscopy equipped with energy dispersive X-ray spectrometer (SEM-EDS), revealed the detection of the radionuclides on the plastic materials with diatom and clays. The results suggest the adsorption of radionuclides on the surface of plastic materials due to FDNPP accident. The plastic materials associated with clays and diatoms could be stronger carriers of radionuclides in the polluted water. Adherence of diatoms to the plastic fiber in the water for 7 months suggested that some plastic materials were taking up heavy metals (Zn, Ba, Pb, Sb) with radioactive elements (Cs etc.). Mechanisms by which radioactive pollutants and microorganisms are adsorbed onto and desorbed from clays at aqueous interface can be understood by combining chemical analysis with electron microscopy observation., 金沢大学理工研究域地球社会基盤学系},
 pages = {99--108},
 title = {石油製品の繊維を利用した放射能除染実験},
 volume = {69},
 year = {2015}
}