Analysis of terrestrial naturally occurring radionuclides in soil samples from some areas of Sirsa district of Haryana, India using gamma ray spectrometry

Abstract The activity concentration of 238U, 232Th and 40K were measured in the soil samples collected from Fast Reactor Fuel Cycle Facility (FRFCF) site, using high-resolution gamma-ray spectrometry. This study is aimed to establish the baseline data of naturally occurring radionuclides within the site. The average activity concentrations were found to be 416.5, 61.7 and 622.3 Bq kg−1 for 40K, 238U and 232Th, respectively. The activity concentrations and its radiological indices were evaluated and were compared with the international values reported by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). The ratio of 40K/232Th and 40K /238U were calculated, which indicates the presence of 5.79 and 2.69 times more K-bearing minerals as compared with Th and U-bearing minerals in the soil samples, respectively. The study provides baseline information on concentration of radionuclides and background radiological assessment of the FRFCF site.

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Gamma-Ray Measurements of Naturally Occurring Radionuclides and Resulting Dose Estimation in Soil Samples Collected from District Chakwal, Pakistan

Journal of Radiation and Nuclear Applications ◽

10.18576/jrna/030103 ◽

2018 ◽

Vol 3 (1) ◽

pp. 23-31 ◽

Cited By ~ 1

Author(s):

S. U. Rahman ◽

S. A. Mehdi ◽

Qazi Jahanzeb ◽

M. Rafique ◽

A. D. K. Tareen ◽

...

Keyword(s):

Gamma Ray ◽

Soil Samples ◽

Dose Estimation ◽

Naturally Occurring ◽

Naturally Occurring Radionuclides

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In situ measurements of natural radioactivity in selected igneous rocks of the Opava Mountain region

Contemporary Trends in Geoscience ◽

10.2478/ctg-2014-0017 ◽

2014 ◽

Vol 3 (1) ◽

pp. 5-12

Author(s):

Agnieszka Dżaluk ◽

Dariusz Malczewski ◽

Jerzy Żaba ◽

Maria Dziurowicz

Keyword(s):

Gamma Ray ◽

Igneous Rocks ◽

Gamma Ray Spectrometry ◽

Weathered Granite ◽

Naturally Occurring ◽

Decay Series ◽

Naturally Occurring Radionuclides ◽

238U Decay Series ◽

Migmatitic Gneiss

Abstract In situ gamma-ray measurements of four igneous rocks were taken in the Opava Mountains (Eastern Sudetes, Poland). The activity of naturally occurring radionuclides was measured using a portable GX3020 gamma-ray spectrometry workstation. The activity concentrations of 40K varied from 914 ± 17 Bqkg-1 (gneiss, Kamienna Góra) to 2019 ± 37 Bqkg-1 (weathered granite, Sławniowice), while those of 232Th from 7.5 ± 0.6 Bqkg-1 (weathered granite, Sławniowice) to 68 ± 0.9 Bqkg-1 (migmatitic gneiss, Nadziejów). The activities associated with 238U decay series ranged from 10 ± 0.4 Bqkg-1 (weathered granite, Sławniowice) to 62 ± 1.6 Bqkg-1 (gneiss, Kamienna Góra). The results will be used in compiling Radiological Atlas of the Sudetes

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Population doses from terrestrial gamma exposure in Serbia

Archive of oncology ◽

10.2298/aoo0704078d ◽

2007 ◽

Vol 15 (3-4) ◽

pp. 78-80 ◽

Cited By ~ 5

Author(s):

Snezana Dragovic ◽

Ljiljana Jankovic-Mandic ◽

Milan Momcilovic ◽

Antonije Onjia

Keyword(s):

Effective Dose ◽

Gamma Ray ◽

Annual Effective Dose ◽

Hazard Index ◽

External Source ◽

Gamma Dose ◽

Radiation Hazard ◽

Gamma Ray Spectrometry ◽

Naturally Occurring ◽

Naturally Occurring Radionuclides

Background: Terrestrial radiation emitted from naturally occurring radionuclides, such as 40K and radionuclides from the 238U and 232Th series and their decay products represent the main external source of irradiation to the human body. The purpose of this study was to provide a preliminary assessment of the doses from terrestrial exposure of population in Serbia and to estimate a potential radiation hazard for population inhabiting investigated areas. Methods: The gamma dose rates, external hazard indexes, and annual effective doses due to terrestrial naturally occurring radionuclides (238U, 232Th and 40K) were calculated based on their activities in soil samples in Serbia as determined by gamma-ray spectrometry. Results: The total absorbed gamma dose rate due to these radionuclides varied from 16.9 to 125 nGy h-1, with a mean of 62.8 nGy h-1. Assuming a 20% occupancy factor, the corresponding annual effective dose varied from 2.07 to 15.4?10-5 Sv with the mean value of 7.7?10-5 Sv, i.e. annual effective dose was in range of the world wide average values. Conclusion: According to the values of external hazard index obtained in this study (mean Hex = 0.35), the radiation hazard was insignificant for the population living in investigated areas.

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An analysis of naturally occurring radionuclides and 137Cs in the soils of urban areas using gamma-ray spectrometry

International Journal of Environmental Science and Technology ◽

10.1007/s13762-017-1467-z ◽

2017 ◽

Vol 15 (5) ◽

pp. 1049-1060 ◽

Cited By ~ 6

Author(s):

I. Vukašinović ◽

D. Todorović ◽

Lj. Životić ◽

L. Kaluđerović ◽

A. Đorđević

Keyword(s):

Urban Areas ◽

Gamma Ray ◽

Gamma Ray Spectrometry ◽

Naturally Occurring ◽

Naturally Occurring Radionuclides

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Distribution of natural radioactivity and radiological hazard using a NaI(Tl) gamma-ray spectrometric system

Journal of Building Physics ◽

10.1177/1744259116631048 ◽

2016 ◽

Vol 40 (4) ◽

pp. 324-333

Author(s):

M Abu Shayeb ◽

A Majid ◽

S Zobidi

Keyword(s):

Gamma Ray ◽

Hazard Index ◽

Absorbed Dose ◽

Gamma Ray Spectrometry ◽

Absorbed Dose Rate ◽

Radium Equivalent Activity ◽

Naturally Occurring ◽

Naturally Occurring Radionuclides ◽

Radium Equivalent ◽

Spectrometric System

The concentrations of 226Ra, 232Th, and 40K are measured in the material collected from two locations. The collected materials are analyzed using gamma-ray spectrometry. The activity concentration of the naturally occurring radionuclides 226Ra, 232Th, and 40K in building material varies from 12.6 to 121.4, 13.6 to 142, and 69.5 to 620.6 Bq kg−1, respectively. The radium equivalent activity, absorbed dose rate, annual effective dose, and hazard index are also calculated.

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ASSESSMENT OF NATURAL RADIOACTIVITY IN MAIZE AND ESTIMATION OF CONCOMITANT DOSE TO NIGERIAN VIA INGESTION PATHWAY

Radiation Protection Dosimetry ◽

10.1093/rpd/ncz115 ◽

2019 ◽

Vol 184 (3-4) ◽

pp. 359-362

Author(s):

Mudassir H Yarima ◽

M U Khandaker ◽

A Nadhiya ◽

M A Olatunji

Keyword(s):

Cancer Risk ◽

Natural Radioactivity ◽

Gamma Ray ◽

Gamma Ray Spectrometry ◽

Detailed Knowledge ◽

Dose Limit ◽

Annual Dose ◽

Lifetime Cancer Risk ◽

Environmental Media ◽

Naturally Occurring

Abstract Uranium, thorium and potassium are the most abundant naturally occurring radioactive materials (NORMs) found in soils and other environmental media including foodstuffs. Since the human exposures to NORMs is an unavoidable phenomenon, in such a way that they can easily find their way to human being via food chain, detailed knowledge on their presence in foodstuffs is necessary to assess the radiation dose to the population. Thus, the present study concerns the assessment of natural radioactivity in maize, a staple foodstuff for Nigerian, via HPGe gamma-ray spectrometry. Activity concentrations (Bq/kg) in the maize samples were found to be in the range of 6.1 ± 0.6–8.2 ± 1.3, 2.2 ± 0.4–5.1 ± 0.7 and 288 ± 16–401 ± 24 for 226Ra, 232Th and 40K, respectively. Measured data for 226Ra and 232Th show below the world average values of 67 Bq/kg and 82 Bq/kg, respectively, while the activity of 40K exceeds the global average of 310 Bq/kg. The annual effective dose via the maize consumption was found to be far below the UNSCEAR recommended ingestion dose limit of 290 μSv/y, and the estimated lifetime cancer risk show lower than the ICRP (1991) cancer risk factor of 2.5 × 10−3 based on the additional annual dose limit of 1 mSv for general public, thus pose no adverse health risk to the Nigerian populace.

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