Novel Method of Quantifying Radioactive Cesium-Rich Microparticles (CsMPs) in the Environment from the Fukushima Daiichi Nuclear Power Plant

Autor: Ikehara, Ryohei, Suetake, Mizuki, Komiya, Tatsuki, Furuki, Genki, Ochiai, Asumi, Yamasaki, Shinya, Bower, William R., Law, Gareth T. W., Ohnuki, Toshihiko, Grambow, Bernd, Ewing, Rodney C., Utsunomiya, Satoshi
Přispěvatelé: IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Department of Chemistry [Fukuoka], Kyushu University [Fukuoka]
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Environmental Science and Technology
Environmental Science and Technology, American Chemical Society, 2018, 52 (11), pp.6390-6398. ⟨10.1021/acs.est.7b06693⟩
Ikehara, R, Suetake, M, Komiya, T, Furuki, G, Ochiai, A, Yamasaki, S, Bower, W R, Law, G T W, Ohnuki, T, Grambow, B, Ewing, R C & Utsunomiya, S 2018, ' Novel Method of Quantifying Radioactive Cesium-Rich Microparticles (CsMPs) in the Environment from the Fukushima Daiichi Nuclear Power Plant ' Environmental Science & Technology, vol. 52, no. 11, pp. 6390-6398 . DOI: 10.1021/acs.est.7b06693
Ikehara, R, Suetake, M, Komiya, T, Furuki, G, Ochiai, A, Yamasaki, S, Bower, W R, Law, G T W, Ohnuki, T, Grambow, B, Ewing, R C & Utsunomiya, S 2018, ' Novel Method of Quantifying Radioactive Cesium-Rich Microparticles (CsMPs) in the Environment from the Fukushima Daiichi Nuclear Power Plant ', Environmental Science and Technology, vol. 52, no. 11, pp. 6390-6398 . https://doi.org/10.1021/acs.est.7b06693
ISSN: 0013-936X
1520-5851
DOI: 10.1021/acs.est.7b06693⟩
Popis: Highly radioactive cesium-rich microparticles (CsMPs) were released from the Fukushima Daiichi nuclear power plant (FDNPP) to the surrounding environment at an early stage of the nuclear disaster in March of 2011; however, the quantity of released CsMPs remains undetermined. Here, we report a novel method to quantify the number of CsMPs in surface soils at or around Fukushima and the fraction of radioactivity they contribute, which we call “quantification of CsMPs” (QCP) and is based on autoradiography. Here, photostimulated luminescence (PSL) is linearly correlated to the radioactivity of various microparticles, with a regression coefficient of 0.0523 becquerel/PSL/h (Bq/PSL/h). In soil collected from Nagadoro, Fukushima, Japan, CsMPs were detected in soil sieved with a 114 μm mesh. There was no overlap between the radioactivities of CsMPs and clay particles adsorbing Cs. Based on the distribution of radioactivity of CsMPs, the threshold radioactivity of CsMPs in the size fraction of
Databáze: OpenAIRE
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