scholarly journals Assessment of Radiological Hazard Indices of Building Materials in Ogbomoso, South-West Nigeria

2013 ◽  
Vol 3 (2) ◽  
Author(s):  
Ajayi Olanipekun Jonathan ◽  
Paul Jere ◽  
Bashiru Bolaji Balogun
Keyword(s):  
Building Materials ◽  
Radiological Hazard ◽  
Hazard Indices ◽  
South West ◽  
Radiological Hazard Indices

scholarly journals Suitability of rocks and sediments from Brzeszcze and Silesia coal mines as building materials in terms of radiological hazard

Nukleonika ◽  
2019 ◽  
Vol 64 (2) ◽  
pp. 65-70
Author(s):  
Monika Śleziak ◽  
Marek Duliński
Keyword(s):  
Bottom Sediments ◽  
Building Materials ◽  
Natural Radionuclides ◽  
Germanium Detector ◽  
Absorbed Dose ◽  
Radiological Hazard ◽  
Hazard Indices ◽  
Absorbed Dose Rate ◽  
Radium Equivalent ◽  
Radiological Hazard Indices

Abstract The isotope activity concentration of rocks and bottom sediments was evaluated based on the samples collected from sedimentation ponds and gangue repositories. Radium 226Ra, thorium 228Th and potassium 40K activities were measured by gamma spectrometry using high-purity germanium detector – HPGe 4020. The radiation effect resulting from the presence of natural radionuclides was estimated by radiological hazard indices such as f1 and f2 coefficients, radium equivalent, internal and external hazard indices and absorbed dose rate. Performed measurements and calculations have shown that the bottom sediments are most contaminated. They may pose a serious radiological hazard for present and future generations.

Calculation of Radiation Nuclei Concentrations in Fertilized and Unfertilized Plants Samples Using Gamma Spectroscopy

2021 ◽  
Vol 19 (2) ◽  
pp. 13-18
Author(s):  
Adawiya M. ALwan ◽  
Auday T. Al-Bayati ◽  
Khalid H. Mahdi ◽  
Hazim L. Mansour
Keyword(s):  
Gamma Spectroscopy ◽  
Petri Dish ◽  
Radiological Hazard ◽  
Hazard Indices ◽  
Plant Samples ◽  
Radiological Hazard Indices

The aim of this work was to estimate the concentrations of natural and artificial nuclides in some fertilized and unfertilized plant samples. These samples were collected and prepared in a petri dish for the measurements using gamma spectroscopy. The average values of 238U, 232Th, 40K, and 137Cs for the unfertilized plant samples were (11.964 ± 3.226, 8.273 ± 2.639, 402.436 ± 18.099, and 2.761 ± 1.613) respectively, and for the fertilized plant samples were (30.434 ± 5.282, 22.584 ± 4.620, 711.332 ± 25.806, and 6.986 ± 2.542) respectively. The average values of radiological hazard indices, Raeq, D, D for 137Cs, (AEDE)in, (AEDE)out, Iγ, Hin, and Hout for the unfertilized plant samples were (54.782 ± 7.216, 27.306, 0.469, 0.134, 0.033, 0.431, 0.180, and 0.148) respectively, and for the fertilized plant samples were (117.502 ± 10.747, 57.364, 1.188, 0.281, 0.070, 0.903, 0.400, and 0.317) respectively. The present results have indicated that the fertilized plant samples have more concentrations than the unfertilized plant samples.

EVALUATION OF RADIATION DOSES AND HAZARD INDICES IN CRUSHED ROCKS FROM SOME QUARRIES IN IBADAN SOUTHWESTERN NIGERIA

2019 ◽  
Vol 187 (3) ◽  
pp. 383-389 ◽  
Author(s):  
S K Alausa ◽  
F O Eluyera ◽  
J O Coker
Keyword(s):  
Health Effect ◽  
Radiation Doses ◽  
Radiological Hazard ◽  
Hazard Indices ◽  
Southwestern Nigeria ◽  
Activity Concentrations ◽  
The Mean ◽  
Radiological Health ◽  
Radiological Hazard Indices ◽  
Radioactivity Levels

Abstract The radiological assessment of rock samples from four quarry sites in Ibadan have been carried out. The mean activity concentrations of 40K, 226Ra and 232Th were 377.0 ± 37.9, 17.7 ± 3.6 and 4.98 ± 2.1 Bq kg−1, respectively, for Ratcon Quarry (RQ); 408.0 ± 28.7, 16.6 ± 1.6 and 10.6 ± 2.3 Bq kg−1, respectively, for Dekit Quarry; 388.0 ± 26.6, 15.7 ± 1.9 and 9.85 ± 3.9 Bq kg−1, respectively, for Hajaig Quarry; and 388.084 ± 55.9, 16.2 ± 3.9 and 12.1 ± 3.8 Bq kg−1, respectively, for NSCE Quarry (NQ). The highest mean outdoor effective dose of 0.038 ± 0.005 mSv y−1 and the minimum of 0.033 ± 0.004 mSv y−1 were obtained at NQ and RQ, respectively. The radiological hazard indices recorded in each site were <1.0. The results show lower radioactivity levels than the world average values; therefore, no serious radiological health effect is expected when the crushed rocks from the quarries are used for buildings construction.

RADIOLOGICAL HAZARD INDICES OF GRANITIC ROCKS USED FOR THE CONSTRUCTION OF BUILDINGS FROM NUBA MOUNTAINS SUDAN

2018 ◽  
Vol 179 (4) ◽  
pp. 364-369 ◽  
Author(s):  
Nooreldin Fadol ◽  
Hajo Idriss ◽  
Isam Salih ◽  
Nserdin A Ragab ◽  
Safa Osman ◽  
...  
Keyword(s):  
Granitic Rocks ◽  
Radiological Hazard ◽  
Hazard Indices ◽  
Radiological Hazard Indices
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