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

Keiko Tagami; Shigeo Uchida; Yukio Uchihori; Nobuyoshi Ishii; Hisashi Kitamura; Yoshiyuki Shirakawa

doi:10.1016/j.scitotenv.2011.07.067

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

Keiko Tagami^*, Shigeo Uchida, Yukio Uchihori, Nobuyoshi Ishii, Hisashi Kitamura, Yoshiyuki Shirakawa

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

89 Citations (Scopus)

Abstract

Soil samples at different depths (0-2, 5-7 and 10-12cm) were collected from J Village, about 20km south of Fukushima Daiichi Nuclear Power Plant (FNPP) to determine their radionuclide specific activities and activity ratios. The concentrations and activity ratios of ¹³¹I, ^{134, 136, 137}Cs and ^129mTe were obtained, but only trace amounts of ⁹⁵Nb, ^110mAg and ¹⁴⁰La were detected which were too low to provide accurate concentrations. Radionuclides such as ⁹⁵Zr, ^{103, 106}Ru and ¹⁴⁰Ba that were found in Chernobyl fallout, were not found in these soil samples. This suggests that noble gasses and volatile radionuclides predominated in the releases from FNPP to the terrestrial environment. The average activity ratios of ¹³¹I/ ¹³⁷Cs, ¹³⁴Cs/ ¹³⁷Cs, ¹³⁶Cs/ ¹³⁷Cs and ^129mTe/ ¹³⁷Cs were 55, 0.90, 0.22 and 4.0 (corrected to March 11, 2011) in the 0-2cm soil samples of April 20 and 28, 2011.

Original language	English
Pages (from-to)	4885-4888
Number of pages	4
Journal	Science of the Total Environment
Volume	409
Issue number	22
DOIs	https://doi.org/10.1016/j.scitotenv.2011.07.067
Publication status	Published - 2011 Oct 15
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution

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10.1016/j.scitotenv.2011.07.067

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Specific activity and activity ratios of radionuclides in soil collected about 20km from the Fukushima Daiichi Nuclear Power Plant: Radionuclide release to the south and southwest. / Tagami, Keiko; Uchida, Shigeo; Uchihori, Yukio et al.
In: Science of the Total Environment, Vol. 409, No. 22, 15.10.2011, p. 4885-4888.

Research output: Contribution to journal › Article › peer-review

Tagami, K, Uchida, S, Uchihori, Y, Ishii, N, Kitamura, H & Shirakawa, Y 2011, 'Specific activity and activity ratios of radionuclides in soil collected about 20km from the Fukushima Daiichi Nuclear Power Plant: Radionuclide release to the south and southwest', Science of the Total Environment, vol. 409, no. 22, pp. 4885-4888. https://doi.org/10.1016/j.scitotenv.2011.07.067

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abstract = "Soil samples at different depths (0-2, 5-7 and 10-12cm) were collected from J Village, about 20km south of Fukushima Daiichi Nuclear Power Plant (FNPP) to determine their radionuclide specific activities and activity ratios. The concentrations and activity ratios of 131I, 134, 136, 137Cs and 129mTe were obtained, but only trace amounts of 95Nb, 110mAg and 140La were detected which were too low to provide accurate concentrations. Radionuclides such as 95Zr, 103, 106Ru and 140Ba that were found in Chernobyl fallout, were not found in these soil samples. This suggests that noble gasses and volatile radionuclides predominated in the releases from FNPP to the terrestrial environment. The average activity ratios of 131I/ 137Cs, 134Cs/ 137Cs, 136Cs/ 137Cs and 129mTe/ 137Cs were 55, 0.90, 0.22 and 4.0 (corrected to March 11, 2011) in the 0-2cm soil samples of April 20 and 28, 2011.",

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

Abstract

Keywords

ASJC Scopus subject areas

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