Multivariate statistical assessment of natural radioactivity and radiological hazards data of cement building materials mainly used in Cameroon

Kayo, Styve Arnol; Moyo, Maurice Ndontchueng; Shouop, Cébastien Joel Guembou; Mekontso, Éric Jilbert Nguelem; Motapon, Ousmanou

doi:10.1007/s12517-021-08717-5

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…For the statistical treatments, the XLSTAT 2016 software (Addinsoft, New York, NY, USA) was employed [41].…”

Section: Statistical Treatmentsmentioning

confidence: 99%

“…In particular, the principal component analysis (PCA), together with Pearson's correlation and hierarchical cluster analyses (HCA), was carried out (i) to identify correlations among the original variables, (ii) to find principal components able to account for the greatest amounts of sample variance [41], and (iii) to decrease the number of variables, consistent with Ward's algorithm, which groups samples according to the measure of dissimilarity between them in terms of Euclidian distance [42].…”

Section: Statistical Treatmentsmentioning

confidence: 99%

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An Assessment of the Natural Radioactivity Content in Pigments and an Estimation of the Radiological Health Risk for the Public

Caridi,

Mottese,

Paladini

et al. 2024

Applied Sciences

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In this article, an investigation into the natural radioactivity content in natural inorganic pigments was carried out, together with the assessment of the radiological health risk for the public related to external exposure to ionizing radiations, via High-Purity Germanium (HPGe) γ-ray spectrometry measurements and the calculation of several indices like the absorbed γ-dose rate (D), the annual effective dose equivalent outdoor (AEDEout) and indoor (AEDEin), and the activity concentration index (I). From the obtained results, it was possible to reasonably exclude radiological hazard effects. In addition, Pearson’s correlation, principal component analysis (PCA), and hierarchical cluster analysis (HCA) were carried out with the aim of determining correlations between natural radioactivity content and radiological indices and with the analyzed samples. As a result, five clusters of the investigated pigments were recognized at the highest level of detail based on their chemical composition and mineralogical nature.

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“…For the statistical treatments, the XLSTAT 2016 software (Addinsoft, New York, NY, USA) was employed [41].…”

Section: Statistical Treatmentsmentioning

confidence: 99%

Section: Statistical Treatmentsmentioning

confidence: 99%

An Assessment of the Natural Radioactivity Content in Pigments and an Estimation of the Radiological Health Risk for the Public

Caridi,

Mottese,

Paladini

et al. 2024

Applied Sciences

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“…where NE indicates the net area of a peak at energy E, εE and γd are the efficiency and yield of the photopeak at energy E, respectively, M is the mass sample (kg) and t is the live time (s) [21]. The quality of the results was certified by the Italian Accreditation Body (ACCREDIA) [22].…”

Section: Figure 2 the Experimental Ortec Hpge Detector And Integrated...mentioning

confidence: 99%

Measurement of the natural radioactivity content of earth pigments and evaluation of radiological health risks

Caridi¹,

Spoto²,

Paladini³

et al. 2023

Proceedings of the 2022 IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

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The natural radioactivity content in twenty samples of four different typologies of earth pigments (Raw Sienna, Burnt Sienna, Raw Umber, and Burnt Umber) was investigated through High Purity Germanium (HPGe) gamma spectrometry, with the aim of evaluating the background levels of natural radioactivity in the analyzed samples, and of assessing the radiological health risks due to the external exposure to the enquired earth pigments, by calculating the absorbed dose rate and, starting from it, the annual effective dose equivalent. Finally, the obtained results gave a promising contribution in view of the development of a database on the natural radioactivity content in earth pigments.

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“…As a consequence, several studies on natural radioactivity content were carried out on different environmental matrices [ 20 , 21 , 22 , 23 ]. Among them, raw building materials for underground parking lots, i.e., mixtures of rock, mineral, and glass particles, are regarded as promising naturally occurring resources for producing inexpensive and environmentally friendly construction materials with adequate resistance and durability properties, thus strongly contributing to sustainable growth [ 24 , 25 ]. Asphalt, the predominant surface layer in road construction, is also frequently used as a paving material in both car parks and underground garages.…”

Section: Introductionmentioning

confidence: 99%

Natural Radioactivity in Raw Building Materials for Underground Parking Lots and Assessment of Radiological Health Risk for the Population

Caridi,

Paladini,

Mottese

et al. 2024

IJERPH

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This article reports the results of an investigation into the activity concentration of natural radionuclides in raw building materials for underground parking lots, together with the assessment of the radiation hazard for the public related to exposure to ionizing radiations. To this purpose, high-purity germanium (HPGe) γ-ray spectrometry was employed in order to quantify the average specific activity of 226Ra, 232Th, and 40K natural radioisotopes. With the aim to assess any possible radiological health risk for the population, the absorbed γ-dose rate (D), the annual effective dose equivalent outdoor (AEDEout) and indoor (AEDEin), the activity concentration index (I), and the alpha index (Iα) were also estimated, resulting in values that were lower than the maximum recommended ones for humans. Finally, the extent of the correlations existing between the observed radioactivity and radiological parameters and of these parameters with the analyzed samples was quantified through statistical analyses, including Pearson’s correlation, a principal component analysis (PCA), and a hierarchical cluster analysis (HCA). As a result, three clusters of the investigated samples were recognized based on their chemical composition and mineralogical nature. Noteworthily, this paper covers a certain gap in science since its topic does not appear in literature in this form. Thus, the authors underline the importance of this work to global knowledge in the environmental research and public health fields.

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Multivariate statistical assessment of natural radioactivity and radiological hazards data of cement building materials mainly used in Cameroon

Cited by 5 publications

References 29 publications

An Assessment of the Natural Radioactivity Content in Pigments and an Estimation of the Radiological Health Risk for the Public

An Assessment of the Natural Radioactivity Content in Pigments and an Estimation of the Radiological Health Risk for the Public

Measurement of the natural radioactivity content of earth pigments and evaluation of radiological health risks

Natural Radioactivity in Raw Building Materials for Underground Parking Lots and Assessment of Radiological Health Risk for the Population

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