Natural radioactivity in soils of Elephant hills, Tamilnadu, India

Jananee, B.; Rajalakshmi, A.; Thangam, V.; Bharath, K. Manikanda; Sathish, V.

doi:10.1007/s10967-021-07886-7

Cited by 36 publications

(4 citation statements)

References 23 publications

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“…Heavy minerals might be present at sample locations with high 226 Ra and 232 Th concentrations, while light minerals might be present in sampling locations with high 40 K concentrations. The probable reasons for higher activity concentration in soil include presence of higher organic matter content, dominance of minerals (smectite, clays, and carbonates), the difference in the underlying bedrocks, and the inundation of these area during flooding through several streams and channels flown through the different formations exposed in nearby highly radioactive Khasi and Jaintia hills of Shillong Plateau, Meghalaya, India and Tertiary succession of Jaintiapur Area of Surma basin which carry various sediments from different formations having diverse age range [ 12 , 44 , 45 ]. The activities of radionuclides in the soil samples may vary locally even in shorter distance due to multi-channel sediments deposition which we have observed during in-situ field measurements.…”

Section: Resultsmentioning

confidence: 99%

“…In Meghalaya, the uranium containing host rock is feldspar rich Arkosic sandstone and the thorium containing host rock contain monazite [ 46 ]. Besides, the anthropogenic activities such as use of fertilizer containing potassium in the haor and bills area during agricultural activities and presence of stone crushing site nearby the studied area might result in variation of activity concentrations [ 3 , 12 , 45 ]. Thus, there is no significant correlation exist between radionuclides in soil samples and activity of radionuclides in rock samples of the study area.…”

Section: Resultsmentioning

confidence: 99%

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Natural radioactivity and its radiological implications from soils and rocks in Jaintiapur area, North-east Bangladesh

Dina

Das

Kabir

et al. 2022

J Radioanal Nucl Chem

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Natural radioactivity concentrations in recent alluvial soils from swampy areas and Tertiary rocks from Jaintiapur were measured using gamma-ray spectrometer equipped with HPGe detector. The average radioactivity concentration of 226 Ra, 232 Th and 40 K were 47 ± 6, 64 ± 5 and 762 ± 40 Bqkg −1 in soils, whereas, 25 ± 2, 37 ± 4 and 884 ± 41 Bqkg −1 in rock samples, respectively. Average radioactivity concentrations of studied soil and rock samples exceeded the world average except 226 Ra for rocks. Radio-elemental ratios suggest that an oxic depositional environment with low uranium and high thorium content. Regarding radiological hazard indices, radium equivalent activities (Ra eq ), external hazard index ( H ex ) and internal hazard index ( H in ) was found to be below the world permissible limits. Whereas, absorbed dose rate (D), and annual effective dose equivalent (AEDE) averages exceeded the world admissible values. Statistical studies show that radioactivity for 226 Ra and 232 Th linked to a source enriched in radioactive minerals and 40 K related to a different sources high in K enriched minerals.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Natural radioactivity and its radiological implications from soils and rocks in Jaintiapur area, North-east Bangladesh

Dina

Das

Kabir

et al. 2022

J Radioanal Nucl Chem

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“…Қазіргі таңда топырақтағы, құмдағы, судағы, тау жыныстарындағы, ауадағы және басқа да қоршаған орта объектілеріндегі радионуклидтердің мөлшерін анықтау жұмыстары іске асырылуда. Бұл жүргізілген зерттеулердің басым бөлігі қоршаған орта объектісі ретінде топырақ сынамаларын зерттеуге бағытталған.Қоршаған орта объектілерінің радиоактивтілігі негізінен 238 U, 232 Th, 226 Ra, 137 Cs және тағы басқа радионуклидтерімен, олардың ыдырау өнімдерінің мөлшері бағаланады [1][2]. Топырақтың осы орайдағы ерекшелігі-ол радиоактивті материалдардың соңғы бағыты және оның ұзақ мерзімді рөлі радионуклидтерді жинақтау және сонымен бірге ауаның, судың, өсімдіктердің ластануында осы заттардың негізі көзі ретінде әсер етеді [3].…”

Section: кіріспеunclassified

Уран Кенін Өндіретін Аймақтарда “Топырақ-Өсімдік” Тізбегіндегі Радионуклидтердің Миграциясына Баға Беру (Әдеби Шолу)

Mussayeva¹,

Bakhtin²

2023

bulbioenu

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It is well known that as a result of the activities of the mining industry, radionuclides and chemicals with active mutagenic and carcinogenic effects can be extracted to the surface. Disposal products, such as radioactive waste and others, may cause particular danger. In this regard, this requires regular monitoring of radioactive waste storage sites and the degree of migration of radionuclides and heavy metals in environmental objects. This review article considers the uranium ore region’s current data for the content of radionuclides in soil, vegetation, and their migration in the “soil-plant” chain.

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“… 5 From the perspective of radiation protection, assessment of the level of primordial radionuclides in the environment and the consequent radiation exposure to human is mostly carried out in soil. 13 - 16 In soil, the distribution of these radionuclides is not uniform. 17 , 18 On one hand, this is due in part to the transfer of the radionuclides between earth materials such as air to the soil, soil to water, soil to plant, etc.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Natural Radioactivity and Assessment of Radiological Hazard Indices of Soil Over the Lithologic Units in Ile-Ife Area, South-West Nigeria

Esan

Ajiboye

Obed

et al. 2022

Environ�Health�Insights

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The distribution of natural radioactivity levels of 238U, 232Th, and 40K in soils overlying the 3 lithologic units within Obafemi Awolowo University, Ile-Ife, Nigeria was investigated to characterize the gamma radiation dose distribution over the lithologies and to assess the radiation hazard due to the natural radionuclides. A thallium-doped cesium iodide detector was employed to determine the activity concentrations of 238U, 232Th, and 40K in 21 soil samples. The respective average concentrations of the 3 radionuclides are 37.7, 3.2, and 245.6 Bq kg−1 for granite gneiss, 31.9, 2.8, and 241.1 Bq kg−1 for banded gneiss, and 21.1, 1.7, and 196.7 Bq kg−1 for mica schist. The average concentration of 238U in granite gneiss lithology exceeds the world average value. The evaluated values of radiation hazard parameters including average absorbed dose rate, outdoor annual effective dose and external hazard index are below the recommended limits. The spatial distribution of the radiation hazard parameters evaluated over the lithologies has been delineated. The highest average cancer risk of 1.15 per 10 000 population was obtained for the study area within the soil overlying the banded gneiss lithology. Generally, the radiation hazard from the soils in study area poses no significant health hazard.

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Natural radioactivity in soils of Elephant hills, Tamilnadu, India

Cited by 36 publications

References 23 publications

Natural radioactivity and its radiological implications from soils and rocks in Jaintiapur area, North-east Bangladesh

Natural radioactivity and its radiological implications from soils and rocks in Jaintiapur area, North-east Bangladesh

Уран Кенін Өндіретін Аймақтарда “Топырақ-Өсімдік” Тізбегіндегі Радионуклидтердің Миграциясына Баға Беру (Әдеби Шолу)

Measurement of Natural Radioactivity and Assessment of Radiological Hazard Indices of Soil Over the Lithologic Units in Ile-Ife Area, South-West Nigeria

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