Radiological hazards assessment due to natural radioactivity in soils from Imereti region (Georgia)

Kapanadze, Kakhaber; Magalashvili, Archil; Imnadze, Platon

doi:10.1007/s12517-021-07502-8

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…Background radiation accounts for 80% of the total annual radiation dose for a typical human (Prihatiningsih et al 2023 ). Geological materials are the major contributor to natural radioactivity (Kapanadze et al 2021 ; Uyanik et al 2022 ; Ofomola et al 2023 ). The accumulation and distribution of radionuclides are often considered heterogeneous and depend on the abundance of certain minerals.…”

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confidence: 99%

Distribution of natural radioactivity in different geological formations and their environmental risk assessment in Malaysia

Seow,

Mohan Viswanathan,

Dodge-Wan

2024

Environ Sci Pollut Res

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Labuan, Miri, Kundasang and Raub regions of Malaysia have very different geological formations and settings that could result in different levels of natural radioactivity. Hence, this study determines the influence of different geological formations on radioactivity in these locations using field measurements, petrology and geochemistry. A total of 141 gamma dose rates and 227 beta flux measurements were collected using Polimaster survey meters (PM1405) in these four regions. The gamma dose rate values range from 0.37 to 0.05 µSv/h with a mean value of 0.11 µSv/h. Beta flux values range from 3.46 to 0.12 CPS with a mean value of 0.57 CPS. Mineralogy and elemental composition of the different rock types were analysed using thin-section petrography, XRD, ICP and pXRF methods. Felsic igneous rocks such as syenite and granite have higher natural radioactivity and contain more radionuclide-bearing minerals such as apatite, zircon, allanite, K-feldspar, titanite, muscovite and biotite. Metamorphic rocks have the second highest natural radioactivity and contain fewer radioactive minerals. The natural radioactivity of sedimentary rocks mostly depends on their clay content. The gamma dose rate maps show that igneous and metamorphic regions around Raub have higher radioactivity compared to the sedimentary-dominated regions around Miri and Labuan. Annual effective dose (AED) and excess lifetime cancer risk (ELCR) were calculated to evaluate the potential health risk for inhabitants of these regions. Labuan and Miri are considered to be safe zones with respect to natural radioactivity as the results show little to no risk for the public, compared with the Raub region, which is medium to high risk.

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Section: Introductionmentioning

confidence: 99%

Distribution of natural radioactivity in different geological formations and their environmental risk assessment in Malaysia

Seow,

Mohan Viswanathan,

Dodge-Wan

2024

Environ Sci Pollut Res

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Radiological profile of 226Ra, 232Th, and 40K in agricultural area around Blue Nile State, Sudan

Fadol

Idriss

2022

Acta Geophys.

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Analysis of internal gamma-ray dose to the public from brick as building material in Tamil Nadu, India

Karthikayini,

Chandrasekaran

2023

Radiation Protection Dosimetry

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Natural radioactivity due to 238U, 232Th and 40K in brick samples from Tamil Nadu was determined using gamma-ray spectrometry. The mean activity concentrations of 238U, 232Th and 40K, 69 ± 6, 62 ± 6 and 462 ± 23 Bq kg−1, are slightly greater than the world recommended limits of 35, 45 and 420 Bq kg−1, respectively, and they are compared with a similar work carried out across the world. The radiological parameters such as radium equivalent activity, Raeq (193 ± 17 Bq kg−1), internal hazard index, Hin (0.71 ± 0.06), and activity utilisation index, AUI (1.43 ± 0.13), was lower, whilst absorbed dose rate, DRin (89 ± 8 nGy h−1), annual effective dose equivalent, AEDEin (0.43 ± 0.04 mSv y−1), and excess lifetime cancer risk, ELCRin (1.52 ± 0.13 mSv y−1), are slightly greater than the world’s recommended limit. Bi-variate statistical analysis was performed to corroborate the relationship between radionuclides and radiological hazards.

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Radiological hazards assessment due to natural radioactivity in soils from Imereti region (Georgia)

Cited by 5 publications

References 9 publications

Distribution of natural radioactivity in different geological formations and their environmental risk assessment in Malaysia

Distribution of natural radioactivity in different geological formations and their environmental risk assessment in Malaysia

Radiological profile of 226Ra, 232Th, and 40K in agricultural area around Blue Nile State, Sudan

Analysis of internal gamma-ray dose to the public from brick as building material in Tamil Nadu, India

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