Assessment of radiological hazards in the phosphate mining area of Kpogamé, Togo

Hazou, Eyakifama; Patchali, Tchilabalo E.

doi:10.1016/j.cscee.2020.100077

Cited by 19 publications

(10 citation statements)

References 31 publications

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“…The only one moderate negative correlation value (-0.620) between activity concentrations of potassium and thorium could be explained by the fact that these two radionuclides have different chemical processes (Hazou et al, 2019). The probability to develop cancer after amount period spend in this area was strongly related to the uranium level, poorly due to thorium level and extremely poorly due to the level of potassium (Hazou & Patchali, 2021). Despite the potassium level being above the recommended limit of 400 Bq kg -1 (UNSCEAR, 2000), it doesn't contribute significantly to radiological exposure in human life.…”

Section: Discussionmentioning

confidence: 97%

Health risk assessment and statistical analysis of natural radioactivity in the uranium exploration area of Zabili, Chad

Penabeï

Bongue

Hazou

et al. 2022

International Journal of Environmental Analytical Chemistry

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Section: Discussionmentioning

confidence: 97%

Health risk assessment and statistical analysis of natural radioactivity in the uranium exploration area of Zabili, Chad

Penabeï

Bongue

Hazou

et al. 2022

International Journal of Environmental Analytical Chemistry

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“…The external hazard index H ex is the assessment of the hazard of γ-radiation [31]. The Hex values are detected via the following formula and registered in Table 1.…”

Section: External Hazard Index (H Ex )mentioning

confidence: 99%

Natural radioactivity and radiological implications of granite rocks, El-Sela area, Southeastern Desert, Egypt

Karim

Gafaar

El-Halim

et al. 2021

J Radioanal Nucl Chem

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In the present study, the 238 U and 232 Th radioactivity afford a perfect indication of the attendance of heavy minerals. Herein, integrated ground gamma-ray spectrometric data, X-ray fluorescence analysis and HPGe gamma-ray spectrometer data are employed to evaluate the natural radioactivity of the studied granite rocks. From X-ray analysis, 13 trace elements were estimated. All samples contain a high concentration of barium, zirconium and strontium. The concentration of uranium is high in all the collected twenty-four granite samples. The radiological hazard indices are computed to evaluate the possibility of applying the granites in various building materials. It was found that the granite rocks of the Southeastern Desert, Egypt are not safe for use as a building material.

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“…The area of the Hahotoé mining site is affected by weathering and erosion processes which are created by torrential rains. The geological structure of the study areas consists of shale, phosphate shale, quartz, limestone, and phosphate limestone (Bouka et al, 2013;Hazou et al, 2019;Hazou and Patchali, 2020). The Hahotoé phosphate extraction site is the site where material resources are extracted and transported to the Kpémé treatment site.…”

Section: Description Of the Study Areamentioning

confidence: 99%

Transfer from soil to grass and statistical analysis of naturally occurring radionuclides in soil from phosphate mining and processing sites in Maritime Region of Togo

et al. 2021

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Natural radionuclides activity concentrations of 226 Ra, 228 Ra, and 40 K in soil and grass samples, statistical analysis of these radionuclides and transfer factors (TFs) from soil to the grass were carried out from phosphate mining and processing sites in southern areas of Togo using gamma-ray spectrometry-based High Purity Germanium (HPGe) detector. The average activity concentrations of 226 Ra, 228 Ra, and 40 K were found within the range usually measured worldwide. Statistical analysis was done by investigating the skewness, the kurtosis, and the density distribution of radionuclides in the study areas. Both skewness and kurtosis displayed that the activity concentrations of soil and grass samples in the dischargement waste site (Kpémé) and mining site (Hahotoé) exhibited slightly positively skewed, negatively skewed, leptokurtic, and platykurtic distributions. The TFs for 226 Ra, 228 Ra, and 40 K from dischargement waste soil to grass were evaluated. The average transfer factors of 226 Ra, 228 Ra, and 40 K in the phosphate processing area were found to be 0.16, 0.32, and 8.42, respectively. 226 Ra and 228 Ra TFs values were found to within the limit of worldwide measure values while that of 40 K was to be larger than the values measured in other countries. The average TF value of 8.42 for 40 K was 8 times higher than the average value of unity, showing its large intake by vegetables. The high TFs for 40 K could be explained by the extensive application of phosphate fertilizers to soils when growing vegetables.

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Assessment of radiological hazards in the phosphate mining area of Kpogamé, Togo

Cited by 19 publications

References 31 publications

Health risk assessment and statistical analysis of natural radioactivity in the uranium exploration area of Zabili, Chad

Health risk assessment and statistical analysis of natural radioactivity in the uranium exploration area of Zabili, Chad

Natural radioactivity and radiological implications of granite rocks, El-Sela area, Southeastern Desert, Egypt

Transfer from soil to grass and statistical analysis of naturally occurring radionuclides in soil from phosphate mining and processing sites in Maritime Region of Togo

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