Specific activity and activity ratios of radionuclides in soil collected about 20 km from the Fukushima Daiichi Nuclear Power Plant: Radionuclide release to the south and southwest.

Title:Specific activity and activity ratios of radionuclides in soil collected about 20 km from the Fukushima Daiichi Nuclear Power Plant: Radionuclide release to the south and southwest.

Author: Tagami, Keiko / Uchida, Shigeo / Uchihori, Yukio / Ishii, Nobuyoshi / Kitamura, Hisashi / Shirakawa, Yoshiyuki

Reference: The Science of the total environment, 409 (22), p.4885-4888, Oct 2011

doi: http://dx.doi.org/10.1016/j.scitotenv.2011.07.067

Keywords: Radioactivity ratio; Fukushima Daiichi Nuclear Power Plant; Soil; Cesium-137; Cesium-134; Iodine-131

Abstract: ► Soil samples were collected at about 20 km south of Fukushima Daiichi Nuclear Power Plant. ► The concentrations of ¹³¹I, ^{134, 136, 137}Cs and ^129mTe were obtained, but ¹⁰³Ru was not. ► This suggests that noble gasses and volatile radionuclides predominated in the releases. ► Activity ratio of ¹³⁴Cs/¹³⁷Cs from the power plant to the south was abound 0.90.

URL: http://www.ncbi.nlm.nih.gov/pubmed/21906779?dopt=Abstract

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