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Environmental Radioactivity Problem around the Former Soviet Union's Semipalatinsk Nuclear Test Site

Research Project

Project/Area Number 09680518
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境影響評価(含放射線生物学)
Research InstitutionKanazawa University

Principal Investigator

YAMAMOTO Masayoshi  Low Level Radioactivity Lab., Faculty of Science, Kanazawa Univ., Associate Prof., 理学部, 助教授 (10121295)

Co-Investigator(Kenkyū-buntansha) HOSHI Masaharu  Research Institute of Radiation Biology and Medicine, Hiroshima Univ., Prof., 原爆放射能医学研究所, 教授 (50099090)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1997: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsFormer Soviet Union / Semipalatinsk / Atomic Bomb / Residual Radioactivity / Radioactivity Contamination / Plutonium Isotopes / Cesium-137 / Soil / 旧ソ連 / カザフスタン / 核実験 / 原爆 / セミパラチンクス / 核実験場 / ^<137>Cs / Pu同位体
Research Abstract

This paper is a report on our survey of residual radioactivity, Pu isotopes and ^<137>Cs, within and without the territory of the Semipalatinsk nuclear test site. Soil samples within the test site were collected at approximately' 30 sites along the roads connecting Kurchatov City, ground zero for the first USSR nuclear test, Balapan, Degelen Mountain and Salzhal settlement. Furthermore, outside the test site, the soil was sampled at about 20 sites, including some settlements (Mostik, Dolon, Tchagan, etc.), forest and pasture areas, along the roads from Semipalatinsk City to Kurchatov City and north Korosteli settlement. The contamination levels of long-lived radionuclides, ^<137>Cs, ^<238>Pu and ^<239,240>Pu as well as ^<240>Pu/^<239>Pu atomic ratio in the soil were determined by non-destructive gamma-spectrometric method and radiochemical sepatation followed by alpha -spectrometic and/or ICP-MS methods, respectively. The resutls showed that although ^<137>Cs was within typical environmental levels except for an areas near ground zero and Balapan, ^<239,240>Pu was elevated levels contaminated with weapons-grade plutonium in all area we visited . From the stepwise leaching of Pu from the soil, 50-80% of total ^<239, 240>Pu in most samples was found to be tightly incorporated into the soil components which might have been melted at time of detonation.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] M.Yamamoto: "Plutonium Isotopic Composition in Soil from ther Former Semipalatinsk Nuclear Test Site" Radiochimica Acta. 72. 209-215 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto: "Residual Radioactivity in the Soil of the Semipalatinsk Nuclear Test Site in the Former USSR" Health Physics. 71. 142-148 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Takada: "Thermoluminescence Dosimetry of Gamma Rays from the Fallout of the Semipalatinsk Nuclear Test" The 2nd Hiroshima Inter.Symp.on Effects of Low-level Radiation for Residents near Semipalatinsk Nuclear Test Site(July,1996). Ed.M.Hoshi. 195-199 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto: "Preliminary Results of Current Levels of Radioactive Fallout in Soil at the Semipalatinsk Nuclear Test Site" The 2nd Hiroshima Inter.Symp.on Effects of Low-level Radiation for Residents near Semipalatinsk Nuclear Test Site(July,1996). Ed.M.Hoshi. 201-224 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Takada: "Environmental Radiation Dose in Semipalatinsk Area near Nuclear Test Site" Health Physics. 73. 524-527 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto: "Current Levels of Pu Isotopes and Cs-137 at the Former Soviet Union's Semipalatinsk Nuclear Test Site" Radiochimica Acta. 81. 21-28 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto, A.Tsumura, Y.Katayama and T.Tsukatani: "Plutonium Isotopic Composition in Soil from the Former Semipalatinsk Nuclear Test Site" Radiochim. Acta. 72. 209-215 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto, T.Tsukatani and Y.Katayama: "Residual Radioactivity in the Soil of the Semipalatinsk Nuclear Test Site in the Former USSR" Health Phys.71. 142-148 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Takada, M.Hoshi, S.Endo, M.Yamamoto, T.Nagatomo, B.I.Gusev, T.I.Rozenson, K.N.Apsalikov and N.J.Tchaijunusova: "Dosimetry Study of Ressidents near Semipalatinsk Nuclear Test Site : High Levels of Natural Radiation 1996, Radiation Dose and Health Effects" 1997 Elsevier Science B.V.(Eds.T.Sugawara and Z.Tao). 191-195

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Takada, M.Hoshi, S.Endo, M.Yamamoto, T.Nagatomo, B.I.Gusev, T.I.Rozenson, K.N.Apsalikov and N.J.Tchaijunusova: "Thermoluminescence Dosimetry of Gamma-rays from the Fallout of the Semipalatinsk Nuclear Tests" in : The 2nd International Symposium on Effects of Low-level Radiation for Residencts near Semipalatinsk Nuclear Test Site, Proceedings of the Second Hiroshima International Symposium, Hiroshima, July 23-25. 195-199 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto and T.Tsukatani: "Preliminary Results of Current Levels of Radioactive Fallout in Soil at the Former Semipalatinsk Nuclear Test Site" in : The 2nd International Symposium on Effects of Low-level Radiation for Residencts near Semipalatinsk Nuclear Test Site, Proceedings of the Second Hiroshima International Symposium, Hiroshima, July 23-25. 201-224 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto: "Measurements of Long-lived Artificial Radionuclides in the Environment-Transuranium Elements, in : Proceedings of 1997 International Symposium on Environmental radiation" Tsuruga, Fukui, Japan, Oct.20,1997 (Eds.T.Tsujimoto & Y.Ogawa), printed in March 1998 (Kansai Kosaido Co., Ltd, Osaka, Japan). 119-134

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] J.Takada, M.Hoshi, S.Endo, T.I.Rozenson, M.Yamamoto, T.Nagatomo, T.Imanaka, B.I.Gusev, K.N.Apsalikov and N.J.Tchaijunusova: "Environmental Radiation Dose in Semipalatinsk Area near Nuclear Test Site" Health Phys.73. 524-527 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto, A.Tsumura and T.Tsukatani: "Current Levels of Pu Isotopes and ^<137>Cs at the Former Soviet Union's Semipalatinsk Nuclear Test Site" Radiochim. Acta. 81. 21-28 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto, M.Hoshi, J.Takada, A.Kh.Securbaev and B.I.Gusev: "Pu Isotopes and ^<137>Cs in the Surrounding Areas of the Former Soviet Union's Semipalatinsk Nuclear Test Site" J.Radional.Nucl.Chem., Articles. (accepted). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] M.Yamamoto: "Plutonium Isotopic Composition in Soil from ther Former Semipalatinsk Nuclear Test Site" Radiochimica Acta. 72. 209-215 (1996)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yamamoto: "Residual Radioactivity in the Soil of the Semipalatinsk Nuclear Test Site in the Former USSR" Health Physics. 71. 142-148 (1996)

    • Related Report
      1998 Annual Research Report
  • [Publications] J.Takada: "Thermoluminescence Dosimetry of Gamma Rays from the Fallout of the Semipalatinsk Nuclear Test" The 2nd.Hiroshima Inter.Symp.on Effects of Low-level Radiation for Residents near Semipalatinsk Nuclear Test Site(July,1996). Ed.M.Hoshi. 195-199 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yamamoto: "Preliminary Results of Current Levels of Radioactive Fallout in Soil at the Semipalatinsk Nuclear Test Site" The 2nd.Hiroshima Inter.Symp.on Effects of Low-level Radiation for Residents near Semipalatinsk Nuclear Test Site(July,1996). Ed.M.Hoshi. 201-224 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] J.Takada: "Environmental Radiation Dose in Semipalatinsk Area near Nuclear Test Site" Health Physics. 73. 524-527 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Yamamoto: "Current Levels of Pu Isotopes and Cs-137 at the Former Soviet Union's Semipalatinsk Nuclear Test Site" Radiochimica Acta. 81. 21-28 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M. Yamamoto: "Plutonium Isotopic Composition in Soil from ther Former Semipalatinsk Nuclear Test Site" Radiochimica Acta. 72. 209-215 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] M. Yamamoto: "Residual Radioactivity in the Soil of the Semipalatinsk Nuclear Test Site in the Former USSR" Health Physics. 71. 142-148 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] J.Takada: "Thermoluminescence Dosimetry of Gamma Rays from the Fallout of the Semip alatinsk Nuclear Test" The 2nd. Hiroshima Inter. Symp. on Effects of Low-level Radiation for Residents near Semipalatinsk Nuclear Test Site (July, 1996). Ed.M.Hoshi. 195-199 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M. Yamamoto: "Preliminary Results of Current Levels of Radioactive Fallout in Soil at the Semipalatinsk Nuclear Test Site" The 2nd. Hiroshima Inter. Symp. on Effects of Low-level Radiation for Residents near Semipalatinsk Nuclear Test Site (July, 1996). Ed.M.Hoshi. 201-224 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] J.Takada: "Environmental Radiation Dose in Semipalatinsk Area near Nuclear Test Site" Health Physics. 73. 524-527 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Yamamoto: "Current Levels of Pu Isotopes and Cs- 137 at the Former Soviet Union's Semipalatinsk Nuclear Test Site" Radiochimica Acta. accepte (soon published). (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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