Effective and ecological half-lives of 90Sr and 137Cs observed in wheat and rice in Japan

Details

• Personal Author:
  Merz S ; Shozugawa K ; Steinhauser G
• Description:
  Published pre-Fukushima food monitoring data from 1963 to 1995 were used to study the long-term presence of 137Cs and 90Sr in rice and wheat. Effective half-lives (Teff) were calculated for rice (137Cs: 5.6 years; 90Sr: 6.7 years) and wheat (137Cs: 3.5 years; 90Sr: 6.2 years), respectively. In rice, 137Cs exhibits a longer Teff because putrefaction processes will lead to the formation of NH4+ ions that are efficient ion exchangers for mineral-adsorbed cesium ions, hence making it more readily available to the plant. Knowledge on the long-term behavior of radiocesium and radiostrontium will be important for Japanese food-safety campaigns after the Fukushima nuclear accident. [Description provided by NIOSH]
• Subjects:
  Environmental Exposure Environmental Pollution Men Occupational Health Risk Assessment Risk Factors Safety Women
• Keywords:
  90Sr 137Cs Author Keywords: Fukushima Children Contaminated Food Ecological Half-life Effective Half-life Environmental Contamination Environmental Exposure Exposure Levels Food Contaminants Food Safety Foodstuff Health Effects Humans Monitoring Systems Nuclear Hazards Risk Factors

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• ISSN:
  0236-5731
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Colorado ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  307
• Issue:
  3
• NIOSHTIC Number:
  nn:20049006
• Citation:
  J Radioanal Nucl Chem 2016 Mar; 307(3):1807-1810
• Contact Point Address:
  Georg Steinhauser, Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523
• Email:
  georg.steinhauser@colostate.edu
• CAS Registry Number:
  Cesium-137 (CAS RN 10045-97-3)
• Federal Fiscal Year:
  2016
• Performing Organization:
  University of Colorado Denver
• Peer Reviewed:
  True
• Start Date:
  20070701
• Source Full Name:
  Journal of Radioanalytical and Nuclear Chemistry
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:35a1a0e84db451da37ee1b666f967a6a6b1703ba7f376848c379d104b77b7b50e1df4b61e9ad80ea207235bdbb2f11f935b94a1cae859a88f2c1c72486d7bef0
• Download URL:
  https://stacks.cdc.gov/view/cdc/203609/cdc_203609_DS1.pdf
• File Type:
  [PDF - 488.92 KB ]