Assessment of natural radioactivity in major building materials of Xiangyang, China
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Tingting Feng
Abstract
The activity concentrations of 40K, 226Ra and 232Th in the commonly used building materials collected from Xiangyang were measured using NaI (Tl) gamma spectrometer. The radioactivity values of 40K, 226Ra and 232Th in the studied samples ranged from 130.5 to 1006.3, 8.4 to 164.0, and 8.7 to 145.6 Bq kg–1, respectively. The concentrations of these radionuclides have been compared with the typical published world values. Radium equivalent activity, external and internal hazard indexes, external and internal exposure indexes, indoor air absorbed dose rate and annual effective dose rate have been calculated to assess the potential radiological hazard associated with natural radionuclides in the studied materials. The calculated values of all the assessed indices in the analyzed building materials except for fly ash are below the internationally accepted limits indicating that these building materials can be safely used in dwellings construction and do not lead to any significant radiation exposure to occupants. Nevertheless, the annual effective dose rate values of all fly ash samples, external and internal hazard indexes values in most fly ash samples exceed the recommended values. It is, therefore, desirable to regularly monitor the natural radioactivity level of the building materials products made from fly ash.
©2014 Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Excitation functions and yields for cyclotron production of radiorhenium via deuteron irradiation: natW(d,xn)181,182(A+B),183,184(m+g),186gRe nuclear reactions and tests on the production of 186gRe using enriched 186W
- A route for polonium 210 production from alpha-particle irradiated bismuth-209 target
- High accuracy plutonium mass determination by controlled-potential coulometry
- Chemometric approach for prediction of uranium pathways in the soil
- Thermodynamic model for the solubility of Ba(SeO4, SO4) precipitates
- Suitability of various materials for porous filters in diffusion experiments
- Detoxification of azinophos methyl using gamma radiation mediated advance oxidation process and investigation of degradation products by HPLC and GC-MS
- Investigation of elemental and radiological contamination of soils in two shipyards in Chittagong, Bangladesh
- Radionuclide content and state of isotopic disequilibrium in some utilized smoking pastes
- Assessment of natural radioactivity in major building materials of Xiangyang, China
Artikel in diesem Heft
- Frontmatter
- Excitation functions and yields for cyclotron production of radiorhenium via deuteron irradiation: natW(d,xn)181,182(A+B),183,184(m+g),186gRe nuclear reactions and tests on the production of 186gRe using enriched 186W
- A route for polonium 210 production from alpha-particle irradiated bismuth-209 target
- High accuracy plutonium mass determination by controlled-potential coulometry
- Chemometric approach for prediction of uranium pathways in the soil
- Thermodynamic model for the solubility of Ba(SeO4, SO4) precipitates
- Suitability of various materials for porous filters in diffusion experiments
- Detoxification of azinophos methyl using gamma radiation mediated advance oxidation process and investigation of degradation products by HPLC and GC-MS
- Investigation of elemental and radiological contamination of soils in two shipyards in Chittagong, Bangladesh
- Radionuclide content and state of isotopic disequilibrium in some utilized smoking pastes
- Assessment of natural radioactivity in major building materials of Xiangyang, China
