Plutonium and Uranium in Human Bones from Areas surrounding the Semipalatinsk Nuclear Test Site
| Autor: | Aya Sakaguchi, Masayoshi Yamamoto, Masaharu Hoshi, B. I. Gusev, Kunihiko Shinohara, Kazbek N. Apsalikov, Osamu Kurihara |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Adult
Male Radioactive Fallout Semipalatinsk nuclear test site Veterinary medicine Health Toxicology and Mutagenesis chemistry.chemical_element Human bone Radiation Dosage Effective dose (radiation) Risk Assessment Bone and Bones Age Distribution Radiation Monitoring Risk Factors Humans Radiology Nuclear Medicine and imaging Aged Nuclear Warfare Aged 80 and over Radiation Radiochemistry Electron Spin Resonance Spectroscopy Internal dose Chronic ingestion Uranium Middle Aged Kazakhstan Plutonium chemistry Body Burden Nuclear test Female Relative Biological Effectiveness |
| Zdroj: | Journal of Radiation Research. 47:A85-A94 |
| ISSN: | 0449-3060 |
| Popis: | Human bone/Plutonium/Uranium/Semipalatinsk nuclear test site/Internal dose. To evaluate the present levels of 239,240 Pu and U in residents living near the Semipalatinsk nuclear test site, more than 70 bone samples were obtained at autopsy. The subjects ranged in age from 30 to 86 years (mean 59.3±12.9). Most of the samples consisted of victims who died of various diseases. Plutonium and U were radiochemically separated and determined by α-ray spectrometry. The mean concentrations of 239,240 Pu and 238 U observed were 0.050±0.041 mBq/g-ash (vertebrae 71, long-bones 18) and 0.28±0.13 mBq/g-ash (22.8±10.6 µg U/kg-ash) (vertebrae 58, long bones 16), respectively. The present 239,240 Pu levels were within the range found for human bone samples from other countries due solely to global fallout in the early 1980s. The average U concentration was close to the estimate (mean 22.5 µg U/kg-ash) for the UK, and about 10 times higher than those estimated for residents in New York City and Japan. By assuming that the average concentration of 239,240 Pu in bone samples is the value at 45 years after instantaneous inhalation in 1955, the initial total intake and the effective dose for 45 years were estimated as 10 Bq and 0.2 mSv, respectively. The annual intake of total U ( 234,235,238 U) and its effective dose for 60 years were estimated as 30 Bq for adult and 0.1 mSv, respectively, for chronic ingestion. |
| Databáze: | OpenAIRE |
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