Tritium concentration in foods and human tissues: Estimation of mean residence times of organically-bound tritium in costal cartilage and sternum |
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| Authors: | S Hisamatsu T Katsumata Y Takizawa |
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| Institution: | (1) Department of Public Health, Akita University School of Medicine, 1-1-1 Hondo, 010 Akita, (Japan);(2) Akita Prefectural Institute of Public Health, 6-6 Senshukubota-cho, 010 Akita, (Japan);(3) Present address: Yokote Public Health Center, 1-3-46 Asahikawa, 013 Yokote, Japan |
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| Abstract: | Tritium (3H) concentrations in diet samples from Akita City, northern Japan, and in human tissue samples from the general population of Akita Prefecture were analyzed to study fallout3H transfer.3H concentrations in human soft-tissue samples have been previously found to be similar to those in diet samples. In this study, higher organically-bound3H (OBT) concentrations were found in human costal cartilage and sternum samples than in the soft-tissues. Mean residence times of OBT in the cartilage and sternum were estimated to be 57 years and <6 years, respectively, with a single compartment model which took into account compartment growth. |
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