Radiation Dose Assessment to Workers Due to NORM Inhalation in the Korean Phosphate Industry
| Autor: | Jung Hwan Jang, Tae Gwan Do, Kwang Pyo Kim, Seung Woo Ji |
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| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
Inhalation Radiation dose General Physics and Astronomy chemistry.chemical_element Internal radiation Uranium Particulates Phosphate 01 natural sciences 030218 nuclear medicine & medical imaging Toxicology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine chemistry Particulate concentration Environmental science 0105 earth and related environmental sciences |
| Zdroj: | Journal of the Korean Physical Society. 73:1007-1011 |
| ISSN: | 1976-8524 0374-4884 |
| DOI: | 10.3938/jkps.73.1007 |
| Popis: | Radiological risks to workers in the phosphate processing industry have not been adequately addressed in Korea. The objectives of the present study were to measure radioactivity concentration of phosphate materials processed within the Korean phosphate industry and to assess internal radiation dose to workers as a result of inhalation. The radioactivity concentration in the phosphate rocks ranged from 92 - 1,100 Bq kg −1 for uranium series and 0.7 - 9 Bq kg −1 for thorium series. Annual inhalation dose varied with processing area and raw materials, widely ranging from 3.58 × 10 −4 to 4.81×10 −1 mSv yr −1. Particulate concentration in the air and radioactivity concentration of the particulates were critical determinants of worker inhalation dose. The study results can be used as basic data for the development of a safety standard and guide and for practical radiation safety management in the phosphate industry. |
| Databáze: | OpenAIRE |
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