Measurement of natural radionuclides and health risk assessment in soil samples of the Main Central Thrust region in Garhwal Himalaya, India

Environmental Monitoring and Assessment, Год журнала: 2025, Номер 197(2)

Опубликована: Янв. 3, 2025

Язык: Английский

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Vertical distribution and radiological risk assessment of 137Cs and natural radionuclides in soil samples

Scientific Reports, Год журнала: 2019, Номер 9(1)

Опубликована: Авг. 21, 2019

The aims of this study were to investigate the vertical distributions natural radionuclides 232Th, 226Ra and 40K as well anthropogenic radionuclide 137Cs in soil samples analyze correlation among radioactivity these physiochemical characteristics namely pH, grain size, carbonate content organic matter. Risk assessment radiological hazard has also been estimated. Forty-four collected from eleven locations Qatar at four depth levels 0 16 cm. average concentrations 226Ra, cm 10, 17, 201 4 Bq/kg, respectively, which within reported world mean. external absorbed gamma dose rate, annual effective dose, mean radium equivalent activity, index lifetime cancer risk 22 nGy/h, 0.027 mSv/y, 47 0.125 0.096 × 10-3, respectively. These values far below minimum recommended international values. level was affected by soil. positive with highest R2 value found 232Th clay content. Total carbon positively correlated for activity concentrations, whereas, negatively 40K. As moisture is concerned, obtained concentrations.

Язык: Английский

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The chemical composition, nutritional value and antimicrobial properties ofAbelmoschus esculentusseeds

Food & Function, Год журнала: 2017, Номер 8(12), С. 4733 - 4743

Опубликована: Янв. 1, 2017

Okra seeds present significant nutritional value and antimicrobial properties could be proposed for innovative okra products functional foods with bioactive properties.

Язык: Английский

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Environmental monitoring through use of silica-based TLD

Journal of Radiological Protection, Год журнала: 2017, Номер 37(3), С. 761 - 779

Опубликована: Июнь 5, 2017

The sensitivity of a novel silica-based fibre-form thermoluminescence dosimeter was tested off-site rare-earths processing plant, investigating the potential for obtaining baseline measurements naturally occurring radioactive materials. dosimeter, Ge-doped collapsed photonic crystal fibre (PCFc) co-doped with B, calibrated against commercially available thermoluminescent dosimetry (TLD) (TLD-200 and TLD-100) using bremsstrahlung (tube-based) x-ray source. Eight sampling sites within 1 to 20 km perimeter rare-earth facility were identified, TLDs (silica- as well TLD-200 in each case being buried soil at fixed depth, allowing be obtained, this protracted periods exposure between two eight months. values dose then compared projected on basis radioactivity associated soils, obtained via high-purity germanium gamma-ray spectrometry. Accord found relative terms TL evaluations site spectroscopic results. Thus said, absolute terms, evaluated doses typically less than those derived from spectroscopy, by ∼50% PCFc-Ge. Gamma spectrometry analysis provided an upper limit dose, Marinelli beaker contents formed sieving provide homogenous well-packed medium. However, per unit mass greater smaller particles, preferential adsorption surface area volume increasing decrease radius, made elevated estimate. Prevailing concentrations key radionuclides soil, 226Ra, 232Th 40K, also determined, together radiological evaluation. To date, under investigation, although including facility, gives no cause concern impact. current study reveals suitability optical based micro-dosimeter all-weather monitoring low-level environmental radioactivity.

Язык: Английский

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Determination of 137Cs activity in soil from Qatar using high-resolution gamma-ray spectrometry

Radiation Physics and Chemistry, Год журнала: 2016, Номер 127, С. 222 - 235

Опубликована: Июль 4, 2016

Язык: Английский

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Determination of the activity concentration levels of the artificial radionuclide137Cs in soil samples collected from Qatar using high-resolution gamma-ray spectrometry

International Journal of Modern Physics Conference Series, Год журнала: 2016, Номер 44, С. 1660237 - 1660237

Опубликована: Янв. 1, 2016

The goal of this study was to establish the first baseline measurements for radioactivity concentration artificial radionuclide [Formula: see text]Cs in soil samples collected from Qatarian peninsula. work focused on determination activity concentrations levels man-made radiation 129 across landscape State Qatar. All were before most recent accident Japan, “the 2011 Fukushima Dai-ichi nuclear power plant accident”. have been measured via high-resolution gamma-ray spectrometry using a hyper-pure germanium detector situated low-background environment with copper inner-plated passive lead shield. A radiological map showing is presented work. was[Formula: text]found range 0.21 15.41 Bq/kg. highest observed sample no. 26 North mean value found be around 2.15 ± 0.27 These values lie within expected relative countries region. It that contamination mainly due Chernobyl April 1986, but conclusion cannot confirmed because lack data accident.

Язык: Английский

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Effect of soil properties on radioactivity concentrations and dose assessment

Journal of Radioanalytical and Nuclear Chemistry, Год журнала: 2022, Номер 331(9), С. 3535 - 3544

Опубликована: Июль 19, 2022

Язык: Английский

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Grain size radioactivity of surficial quaternary deposits of Wadi Arar, Saudi Arabia

Arabian Journal of Geosciences, Год журнала: 2021, Номер 14(1)

Опубликована: Янв. 1, 2021

Язык: Английский

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