Radon concentrations and exposure levels in the Trepça underground mine: A comparative study
| Autor: | Sadik Bekteshi, Sehad Kadiri, Fisnik Alijaj, Skender Kabashi, Skender Ahmetaj, Besim Xhafa, Gezim Hodolli, Bujar Abdullahu |
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| Rok vydání: | 2017 |
| Předmět: |
020209 energy
Strategy and Management chemistry.chemical_element Radon Soil science 02 engineering and technology 010501 environmental sciences 01 natural sciences Effective dose (radiation) Industrial and Manufacturing Engineering Health hazard 0202 electrical engineering electronic engineering information engineering 0105 earth and related environmental sciences General Environmental Science Radiogenic nuclide Renewable Energy Sustainability and the Environment business.industry Environmental engineering Radon gas respiratory tract diseases Radon Daughters Radiation exposure chemistry Environmental science Radiation protection business |
| Zdroj: | Journal of Cleaner Production. 155:198-203 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2016.10.131 |
| Popis: | This study presents the results of radon concentration measurements and radiation exposure levels in the Trepca (pronounced Trepcha) underground mine, which are important to assess the radiogenic hazards to occupational workers. Radon concentration measurements were carried out in selected locations of the Trepca mine using continuous radon monitor CRM-510 and portable radon monitor PRM-145. Results show that the radon gas concentration in the mine varied from 54 Bq/m 3 to 691 Bq/m 3 . The radiation exposure doses of miners from radon and radon daughters were determined. The total annual effective doses varied from 0.4 mSv/y to 5 mSv/y. The effective dose has been found to be lower than the dose limits recommended by the International Commission of Radiation Protection. The comparison of indoor measurements shows that the highest time-dependent indoor values of radon concentration in the two lowest horizons decreased during the time period 2010–2015 and that their average values increased by about 10%. This means that five-year mining activities generated pathways for radon gas flow, causing the decreasing of the maximum values and increasing the average values. |
| Databáze: | OpenAIRE |
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