Assessment of natural radioactivity and radon exhalation rate associated with rock properties used for construction in greater Accra region, Ghana

Otoo, Francis; Darko, E. O.; Garavaglia, M.; Adukpo, O. K.; Amoako, J. K.; Tandoh, J. B.; Inkoom, Stephen; Nunoo, Samuel; Adu, Simon

doi:10.1007/s10967-021-07709-9

Cited by 13 publications

(7 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ra eq values evaluated in sediment samples had a mean of 104.7 Bqkg −1 which is lower than the world mean of 370 Bqkg −1 [ 14 ]. Ra eq is associated with the internal and external gamma doses due to radon and its progenies and since sediment are used as building materials by coastal dwellers in Ghana the maximum Ra eq value must not exceed 370 Bqkg −1 [ 9 , 40 , 41 ].…”

Section: Resultsmentioning

confidence: 99%

Radiological assessment in beach sediment of coastline, Ghana

Akuo-ko

Adelikhah

Amponsem³

et al. 2023

Heliyon

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Radiological assessment in beach sediment of coastline, Ghana

Akuo-ko

Adelikhah

Amponsem³

et al. 2023

Heliyon

View full text Add to dashboard Cite

“…Tilis , ca, which uses Surf water, is close to Aciliu, and the geology of the site may explain the particular radioactivity of this source. In the underground of the Tilis , ca locality, Dordea [60] mentioned the presence of gneiss rocks, exploited as a valuable resource for the construction industry [61]. Otoo et al [46] observed that due to its properties (density, durability, and water absorption capacity), this rock stores many natural radionuclides, including 226 Ra [61,62], which contributes significantly to the gross alpha activity [63], and 40 K [61], which plays an important role in the gross beta activity [63], also showing a significant positive correlation with 222 Rn abundance [61].…”

Section: Radioactivity Parameters Of Drinking Water In the Studied Areamentioning

confidence: 99%

“…In the underground of the Tilis , ca locality, Dordea [60] mentioned the presence of gneiss rocks, exploited as a valuable resource for the construction industry [61]. Otoo et al [46] observed that due to its properties (density, durability, and water absorption capacity), this rock stores many natural radionuclides, including 226 Ra [61,62], which contributes significantly to the gross alpha activity [63], and 40 K [61], which plays an important role in the gross beta activity [63], also showing a significant positive correlation with 222 Rn abundance [61]. Other rocks described as being associated with high radon levels, especially in groundwater, are granite [62,64,65], shale, and phyllite [64].…”

Section: Radioactivity Parameters Of Drinking Water In the Studied Areamentioning

confidence: 99%

A Multivariate Model of Drinking Water Quality Based on Regular Monitoring of Radioactivity and Chemical Composition

Tăban,

Benedek,

Stoia

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

From a public health perspective, the monitoring of water quality intended for human consumption belongs to the operational and audit management of the supply zones. Our study explores the spatial and temporal patterns of the parameters of drinking water in Sibiu County, Romania. We related the relevant physical-chemical parameters (ammonia, chlorine, nitrates, Al, Fe, Pb, Cd, Mn, pH, conductivity, turbidity, and oxidizability) and radioactivity (gross alpha activity, gross beta activity, and radon-222 content) from a 5-year survey to the water source (surface water and groundwater, which may be of subsurface or deep origin), space (sampling locality) and time (sampling month and year). We conducted a combined evaluation using the generalized linear mixed models (GLMMs), Pearson correlation analysis of the physical-chemical parameter, multivariate linear redundancy analysis (RDA), t-value biplots construction, and co-inertia analysis. The obtained regional model shows that the source, locality, and month of sampling are significant factors in physical-chemical parameters’ variation. Fe and turbidity have significantly higher values in surface water, and nitrates and conductivity in groundwater. The highest values are recorded in January (nitrates), March (Cl, ammonia, pH) and August (Fe, turbidity). The RDA ordination diagram illustrates the localities with particular or similar characteristics of drinking water, two of which (rural sources) being of concern. The water source is the best predictor for radioactivity, which increases from surface to ground. The gross alpha and beta activities are significantly and positively correlated, and are both correlated with conductivity. In addition, the gross alpha activity is positively correlated with nitrates and negatively with pH, while the gross beta activity is positively correlated with Mn and negatively with Fe; these relationships are also revealed by the co-inertia analysis. In conclusion, our model using multilevel statistical techniques illustrates a potential approach to short-term dynamics of water quality which will be useful to local authorities.

show abstract

“…In addition, the 40 K in clay minerals is also the main source of γ-radiation. [20][21][22][23][24][25] Clays from different origins often exhibit different radiation characteristics due to differences in their formation factors. The evaluation of the radiation characteristics of clay can be used to not only determine the radiation index and the impact on environmental radiation but also to trace the origin of the clay.…”

Section: Introductionmentioning

confidence: 99%

“…Among these, people are most concerned about γ‐rays, which cause external exposure, and Rn and its daughter products, which cause internal exposure. In addition, the 40 K in clay minerals is also the main source of γ‐radiation 20–25 . Clays from different origins often exhibit different radiation characteristics due to differences in their formation factors.…”

Section: Introductionmentioning

confidence: 99%

X‐ray spectral characteristics of typical clays in China and their application in clay classification

et al. 2023

View full text Add to dashboard Cite

The variety and content of minerals in clay determine its quality and use. The x‐ray fluorescence characteristics of seven elements, that is, Mg, Al, Si, K, Ca, Ti, and Fe, in clay samples were studied using the energy‐dispersive x‐ray fluorescence (EDXRF) method. The application of wavelet transform was used to analyze the overlapping peaks of the FeKα and MnKβ and the CaKα and KKβ spectral lines and to measure the spectral peak count rate and the content of seven elements. The weight of classified elements in clay was calculated through principal component analysis, and the clay samples from four clay‐producing areas were classified using the K‐means clustering method. The results showed that the accuracy of classification using the count rate of seven elements reached 97.73%. The average accuracy of the classification results of the content of seven elements reached 80.68%. A comparison of the results showed that the EDXRF spectral peak information provides a reliable scientific method for the identification and tracing of clay and its products. In addition, tracing the origin of clay and its products can also indirectly assess the radiation level and its impact on the radiation environment based on the radiation index test results.

show abstract

Assessment of natural radioactivity and radon exhalation rate associated with rock properties used for construction in greater Accra region, Ghana

Cited by 13 publications

References 29 publications

Radiological assessment in beach sediment of coastline, Ghana

Radiological assessment in beach sediment of coastline, Ghana

A Multivariate Model of Drinking Water Quality Based on Regular Monitoring of Radioactivity and Chemical Composition

X‐ray spectral characteristics of typical clays in China and their application in clay classification

Contact Info

Product

Resources

About