A Study on the Tritium Behavior in the Rice Plant after a Short-Term Exposure of HTO

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In many Asian countries including Korea, rice is a very important food crop. Its grain is consumed by humans and its straw is used to feed animals. In Korea, there are four CANDU type reactors that release relatively large amounts of tritium into the environment. Since 1997, KAERI (Korea Atomic Energy Research Institute) has carried out the experimental studies to obtain domestic data on various parameters concerning the direct contamination of plant. In this study, the behavior of tritium in the rice plant is predicted and compared with the measurement performed at KAERI. Using the conceptual model of the soil-plant-atmosphere ... continued below

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11 pages

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Yook, D.-S.; Lee, K. J. & Choi, Y-H. February 26, 2002.

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  • WM Symposia, Inc.
    Place of Publication: Tucson, Arizona
  • Hanʼguk Kwahak Kisurwŏn
    Publisher Info: Department of Nuclear Engineering, Korea Advanced Institute of Science and Technology 373-1, Kusong-dong, Yusong-gu, Taejon, 305-701 (KR)
    Place of Publication: Korea
  • Han'guk Wŏnjaryŏk Yŏn'guso
    Publisher Info: Nuclear Environment Research Division, Korea Atomic Energy Research Institute, P.O. Box 105, Yusong-gu, Taejon, 305-600, Korea (United States)
    Place of Publication: Korea

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Description

In many Asian countries including Korea, rice is a very important food crop. Its grain is consumed by humans and its straw is used to feed animals. In Korea, there are four CANDU type reactors that release relatively large amounts of tritium into the environment. Since 1997, KAERI (Korea Atomic Energy Research Institute) has carried out the experimental studies to obtain domestic data on various parameters concerning the direct contamination of plant. In this study, the behavior of tritium in the rice plant is predicted and compared with the measurement performed at KAERI. Using the conceptual model of the soil-plant-atmosphere tritiated water transport system which was suggested by Charles E. Murphy, tritium concentrations in the soil and in leaves to time were derived. If the effect of tritium concentration in the soil is considered, the tritium concentration in leaves is described as a double exponential model. On the other hand if the tritium concentration in the soil is disregarded, the tritium concentration in leaves is described by a single exponential term as other models (e.g. Belot's or STAR-H3 model). Also concentration of organically bound tritium in the seed is predicted and compared with measurements. The results can be used to predict the tritium concentration in the rice plant at a field around the site and the ingestion dose following the release of tritium to the environment.

Physical Description

11 pages

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  • Waste Management 2002 Symposium, Tucson, AZ (US), 02/24/2002--02/28/2002

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  • Report No.: NONE
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 828649
  • Archival Resource Key: ark:/67531/metadc783026

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • February 26, 2002

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

Description Last Updated

  • March 21, 2018, 11:45 p.m.

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Yook, D.-S.; Lee, K. J. & Choi, Y-H. A Study on the Tritium Behavior in the Rice Plant after a Short-Term Exposure of HTO, article, February 26, 2002; Tucson, Arizona. (digital.library.unt.edu/ark:/67531/metadc783026/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.