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Journal articles on the topic 'Radiation Hazard Indices'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Yun, Ko Yu, and Muhammad Arif Bin Sazali. "Assessments of natural radionuclides concentration and radiological hazard indices in Universiti Teknologi Malaysia (UTM)." IOP Conference Series: Materials Science and Engineering 1326, no. 1 (2025): 012012. https://doi.org/10.1088/1757-899x/1326/1/012012.

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Abstract Terrestrial gamma radiation arises from the decay of naturally occurring radionuclides, known as primordial radionuclides. The radiological hazard associated with these radionuclides can be quantified using radiological hazard indices. This study aims to (1) determine the average Terrestrial Gamma Radiation Dose (TGRD) rate at Universiti Teknologi Malaysia (UTM), (2) assess the average concentrations of radionuclides 238U, 232Th, and 40K in UTM soil, and (3) evaluate the corresponding radiological hazard indices. The mean TGRD rate, measured at 30 locations across UTM, was 100.11 ± 16

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Dahesh, Mohamed N., Samir Y. El-Kameesy, Mogahed E. Al-Abyad, Gobran N. Ali, and Abdullah T. Naji. "Natural Radionuclides Concentrations and Associated Radiation Hazard of Some Building Rocks Used in Taiz City, Yemen." University of Science and Technology Journal for Engineering and Technology 1, no. 2 (2024): 21–40. http://dx.doi.org/10.59222/ustjet.1.2.2.

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Building materials comprise a diverse range of natural rocks that contain varying mineral components including radionuclides. Gamma spectrometry-based high-purity Germanium detectors were utilized to measure the activity concentrations of natural radionuclides: Radium-226 (226Ra), Thorium-232 (232Th), and Potassium-40 (40K) in various building rock samples found within and surrounding Taiz city. The activity concentrations of 226Ra, 232Th, and 40K vary from 27.79 ± 0.77 to 234.49 ± 3.13 Bq.kg-1, 25.82 ± 0.40 to 415.31 ± 2.47 Bq.kg-1, and 457.91±2.61 to 1139.56 ± 5.43 Bq.kg-1 with overall avera

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3

Abbady, Adel G. E. "Estimation of radiation hazard indices from sedimentary rocks in Upper Egypt." Applied Radiation and Isotopes 60, no. 1 (2004): 111–14. http://dx.doi.org/10.1016/j.apradiso.2003.09.012.

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Fares, S., A. Ashour, M. El-Ashry, and M. Abd El-Rahma. "Gamma Radiation Hazards and Risks Associated with Wastes from Granite Rock Cutting and Polishing Industries in Egypt." Nuclear and Radiation Safety, no. 1(53) (March 12, 2012): 64–73. http://dx.doi.org/10.32918/nrs.2012.1(53).13.

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Geological materials usually contaminated with naturally occurring radioactive materials (NORM) have become a focus of great attention. The gamma radiation in samples of a variety of natural tiling rocks (granites) collected from different factories in Egypt for use in the building industry was measured, employing high-resolution g-ray spectrometry. In order to assess the radiological impact from the granites investigated. The radiological hazard indices, annual effective dose equivalent (outdoor and indoor) (Deff), hazard indices (Hex and Hin), activity utilization indices (Ig, Ia) and

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ABBADY, A., N. AHMED, A. ELARABI, R. MICHEL, A. ELKAMEL, and A. ABBADY. "Estimation of radiation hazard indices from natural radioactivity of some rocks." Nuclear Science and Techniques 17, no. 2 (2006): 118–22. http://dx.doi.org/10.1016/s1001-8042(06)60023-7.

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Ademoh, Bello Aisha, Usman Rilwan, and Musa Yusuf. "Assessment on Radiation Hazard Indices from Selected Dumpsites in Lafia Metropolis, Nasarawa State, Nigeria." Journal of Oncology Research 4, no. 1 (2021): 20. http://dx.doi.org/10.30564/jor.v4i1.3840.

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This research reports an assessment of ionizing radiation in some chosen Dumpsites in Lafia Local government area of Nasarawa State. Ionizing radiation measurement was conducted at four Dump sites. The survey was done using a radiation survey meter (Radex one Outdoor 55130719 NA). Radiation exposure rate in micro sievert per hour (μSvhr-1) was measured. Readings were taken by placing the detector at gonad level about 1 meter above the ground. Result showed that the average annual effective dose rate in the selected dumpsites were 0.22 mSv/yr for Lafia modern market, 0.17 mSv/yr for dumpsite op

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Manigandan, P. K., and Chandar Shekar. "Measurement of radioactivity in an elevated radiation background area of Western Ghats." Nuclear Technology and Radiation Protection 29, no. 2 (2014): 128–34. http://dx.doi.org/10.2298/ntrp1402128m.

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As part of monitoring the exposure of the general public to natural radioactivity, the activity concentration of naturally occurring radionuclides in soil samples in an elevated radiation background area of Western Ghats was determined using gamma-ray spectrometry. Average values of the activity concentration of radionuclides, outdoor terrestrial gamma dose rate, annual effective dose equivalent and radiation hazard indices from soil activity were estimated. The activity concentrations of 232Th and average outdoor terrestrial gamma dose rate were found to be higher than the world average, poss

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Esan, Deborah T., Yinka Ajiboye, Rachel I. Obed, Joshua Ojo, Mary Adeola, and Mynepalli K. Sridhar. "Measurement of Natural Radioactivity and Assessment of Radiological Hazard Indices of Soil Over the Lithologic Units in Ile-Ife Area, South-West Nigeria." Environmental Health Insights 16 (January 2022): 117863022211000. http://dx.doi.org/10.1177/11786302221100041.

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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

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Śleziak, Monika, and Marek Duliński. "Suitability of rocks and sediments from Brzeszcze and Silesia coal mines as building materials in terms of radiological hazard." Nukleonika 64, no. 2 (2019): 65–70. http://dx.doi.org/10.2478/nuka-2019-0008.

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Abstract The isotope activity concentration of rocks and bottom sediments was evaluated based on the samples collected from sedimentation ponds and gangue repositories. Radium 226Ra, thorium 228Th and potassium 40K activities were measured by gamma spectrometry using high-purity germanium detector – HPGe 4020. The radiation effect resulting from the presence of natural radionuclides was estimated by radiological hazard indices such as f1 and f2 coefficients, radium equivalent, internal and external hazard indices and absorbed dose rate. Performed measurements and calculations have shown that t

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Abdel Gawad, Ahmed E., Khaled Ali, Hassan Eliwa, et al. "Radiological Investigation on Sediments: A Case Study of Wadi Rod Elsayalla the Southeastern Desert of Egypt." Applied Sciences 11, no. 24 (2021): 11884. http://dx.doi.org/10.3390/app112411884.

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The presence of heavy radioactive minerals in the studied granitoids from which the Wadi sediments leads to the study of the exposure to emitted gamma rays from the terrestrial radionuclides, such as 238U, 232Th, and 40K. The geological study revealed that the Wadi sediments derived from the surrounding granitoids, such as syenogranite, alkali feldspar granite, and quartz syenite. The mineral analysis confirmed that the granitoids were enriched with radioactive minerals, such as uranothorite as well as monazite, zircon, yttrocolumbite, and allanite. The mean activity of the 238U, 232Th, and 40

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ABOJASSIM, ALI ABID, LUBNA A. AL-ALASADI, AHMED R. SHITAKE, FAEQ A. AL-TEMEMIE, and AFNAN A. HUSAIN. "Assessment of Annual Effective Dose for Natural Radioactivity of Gamma Emitters in Biscuit Samples in Iraq." Journal of Food Protection 78, no. 9 (2015): 1766–69. http://dx.doi.org/10.4315/0362-028x.jfp-15-067.

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Biscuits are an important type of food, widely consumed by babies in Iraq and other countries. This work uses gamma spectroscopy to measure the natural radioactivity due to long-lived gamma emitters in children's biscuits; it also estimates radiation hazard indices, that is, the radium equivalent activity, the representative of gamma level index, the internal hazard index, and the annual effective dose in children. Ten samples were collected from the Iraqi market from different countries of origin. The average specific activities for 226Ra, 232Th, and 40K were 9.390, 3.1213, and 214.969 Bq/kg,

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Ali, M. M. M., H. Zhao, A. Rawashdeh, Y. A. Mohammed, and M. Al Hassan. "Assessment of radiation hazard indices for sand samples from Ma'rib in Yemen." International Journal of Radiation Research 19, no. 3 (2021): 615–23. http://dx.doi.org/10.52547/ijrr.19.3.615.

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13

Almayahi, B. A., A. A. Tajuddin, and M. S. Jaafar. "Radiation hazard indices of soil and water samples in Northern Malaysian Peninsula." Applied Radiation and Isotopes 70, no. 11 (2012): 2652–60. http://dx.doi.org/10.1016/j.apradiso.2012.07.021.

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14

Vuong, Le, Huynh Chuong, Lam Nhat, et al. "Assessing radiation hazards associated with natural radioactivity in building materials in Ho Chi Minh City, Vietnam." Nuclear Technology and Radiation Protection 38, no. 1 (2023): 30–38. http://dx.doi.org/10.2298/ntrp2301030v.

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This study is aimed at assessing radiation hazards associated with natural radioactivity in common building materials used in Ho Chi Minh City, Vietnam. Thirty-six samples from eighteen types of building materials were collected to measure activity concentrations using the gross alpha/beta counting system and gamma-ray spectrometry. The gross alpha and gross beta activity concentrations ranged from 94.7 ? 31.3 to 1045.1 ? 112.3 Bqkg-1 and 104.9 ? 4.7 to 834.4 ? 37.1 Bqkg-1, respectively. In addition, the activity concentrations of 226Ra, 232Th, and 40K were also determined, which ranged from 4

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15

Djabou, Rihab Elhouda, and Abdelfettah Belafrites. "Assessment of radioactivity levels and radiological hazard indices in phosphate and phosphate mine waste samples from Algeria." Radiation Protection Dosimetry 199, no. 18 (2023): 2218–23. http://dx.doi.org/10.1093/rpd/ncad061.

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Abstract Phosphate ore is the starting raw material for production of all phosphate products including fertilisers phosphate waste. It can be of sedimentary, volcanic or biological origin. Like any other geological material found in nature, it contains various amounts of naturally occurring primordial radionuclides, such as 238U series, 232Th series and 40K. Gamma-ray spectrometry was used to assess natural radioactivity levels and radiological hazard indices in phosphate samples. In this paper, the specific activity concentrations of 226Ra, 232Th and 40K of phosphate ores, merchant and mine w

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A., I. Olanrewaju, and O. Avwiri G. "Assessment of the Radiation Hazard Indices from Terrestrial Radiation in Mining Sites in Benue State, Nigeria." Asian Journal of Environment & Ecology 2, no. 4 (2017): 1–10. https://doi.org/10.9734/AJEE/2017/33373.

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The assessment of the radiation hazard indices of solid minerals and sand in mining sites of Benue State, Nigeria was carried out using well calibrated radalert-50 and 100 meters and a Global Positioning System (Garmin 765). The sites investigated are Lessle (Barite), Gboko (Limestone), Owukpa (Coal) and Akuana (Salt) deposits fields. The mean background radiation ionization exposure rate of 0.019±0.004, 0.019±0.004, 0.014±0.002 and 0.023±0.005 mRh<sup>-1</sup> were obtained respectively. The mean of absorbed dose rates estimated for the mining fields are 161.53, 169.40, 120.35 and 201.84 nGy/

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17

Ademila, Omowumi, and Raphael Ugo. "Radiometric evaluation of natural radioactivity and radiation hazard indices in soils from quarries sites in southwestern Nigeria." International Journal of Advanced Geosciences 6, no. 1 (2017): 43. http://dx.doi.org/10.14419/ijag.v6i1.8609.

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Quarry activities increase the radiation dose received by humans by distributing the radionuclides associated with the natural resources to the soil surfaces. This study assessed the level of natural radiations in soils around two quarry sites to a maximum depth of 2.0 m and up to 500 m away from the sites. Activity concentration of 232Th, 238U and 40K in twenty soil samples collected from the quarries in Ondo State were measured by means of high resolution gamma-ray spectrometry. Average value of 232Th, 238U and 40K measured were 0.0027±0.0003 Bq/kg and 0.0036±0.00036 Bq/kg, 0.028±0.0012 Bq/k

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18

Radenkovic, Mirjana, Alshikh Masaud, Velibor Andric, and Scepan Miljanic. "Radioactivity of sand from several renowned public beaches and assessment of the corresponding environmental risks." Journal of the Serbian Chemical Society 74, no. 4 (2009): 461–70. http://dx.doi.org/10.2298/jsc0904461r.

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The radiological risk due to the presence of natural and man-made radionuclides in beach sands from several renowned seaside and riverbank public beaches was estimated in this study. The exposure levels to terrestrial radiation of the beaches were determined, as well as hazards due to human use of the analyzed sands in industry and in building constructions. Specific radionuclides concentrations in the sand samples were determined by standard gamma-spectrometry. The corresponding radiation hazards arising due to the use of sand as a building material were estimated by three different radiologi

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Olanrewaju, A., and G. Avwiri. "Assessment of the Radiation Hazard Indices from Terrestrial Radiation in Mining Sites in Benue State, Nigeria." Asian Journal of Environment & Ecology 2, no. 4 (2017): 1–10. http://dx.doi.org/10.9734/ajee/2017/33373.

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Mann, Nisha, Amit Kumar, Sushil Kumar, and R. P. Chauhan. "Measurement of radium, thorium, potassium and associated hazard indices from the soil samples collected from Northern India." Indoor and Built Environment 27, no. 8 (2017): 1149–56. http://dx.doi.org/10.1177/1420326x17696136.

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The presence of radium, thorium and potassium in soil and building materials impose radiological hazards to human population. Both alpha and gamma radiation are produced from the decay chain of uranium and thorium while potassium is itself a source of gamma radiation. The measurement of these radionuclides in soil is important to prevent the general public from health hazards. The measurement of radium, thorium and potassium from soil samples collected from some locations of Northern India was carried out to assess the various radiological hazard indices using sodium iodide-based gamma ray spe

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Ipuole, Ogbor Godwin, and Jessica Chukwuyem Molua. "Evaluation of Radiological Health Hazard Indices Arising from Diagnostic X-Ray Rooms." Journal of Nursing Research,Patient Safety and Practise, no. 42 (February 2, 2024): 1–9. http://dx.doi.org/10.55529/jnrpsp.42.1.9.

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The effective dose of selected health care workers who are constantly exposed to X-ray radiation was measured using thermoluminescence dosimeters (TLD) placed over the lead apron at the chest region in all categories of medical personnel investigated. The objective is to conduct radiation measurements in various chosen hospitals to determine the level of exposure from X-ray machines precisely at a distance of 1 meter from the primary source. The work was carried out within a year in each of the selected centers. The personnel examination records containing the type of examination each day, pea

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Dalia Khawwam Kamil and Asma Ahmad Aziz. "Determination of radionuclide concentrations in cigarette tobacco by using Thallium-doped NaI (TI) scintillate technique." Tikrit Journal of Pure Science 25, no. 2 (2020): 81–85. http://dx.doi.org/10.25130/tjps.v25i2.239.

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This study includes the determination of natural and industrial radionuclides concentrations in different samples of cigarette tobacco. The radionuclides are U238, Th332 series and K40, as well as industrial radionuclides of Cs137.Radiation risk coefficients were calculated. The results showed that the specific activity rates of Ra226, Bi207, Ac228, K40, and Cs137 were within the global limit. The radiological hazard radium equivalent Raeq , intake dose (Dɣ), annual effective dose for external and internal exposure (AEDEout and AEDEin), health risk external and internal hazard indices data (He

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Shafik, Shafik S. "Measurement of background radiation, cosmic ray flux and their hazard parameter of Baghdad city districts." Iraqi Journal of Physics (IJP) 14, no. 31 (2019): 179–87. http://dx.doi.org/10.30723/ijp.v14i31.185.

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The aim of this work was directed to measure the cosmic ray (CR)flux and the background (BG) absorbed dose rate for districts ofBaghdad city. The maximum values of CR flux was 2.01(particle/cm2.s) registered for several Baghdad districts and theminimum was 0.403 (particle/cm2.s) belonging to Al-kadhimiyadistrict, whereas the overall average value was 1.24 (particle/cm2.s).The BG measurements showed that the maximum absorbed dose was25 nSv/h belonging to Noab AL-Dhbat district and the minimumabsorbed was 19.01 nSv/h observed in Al-Ghadeer district, whilethe overall average was 22.56 nSv/h, and

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Nwafor, Christiana O. "Experimental Evaluation of Radiological Hazards in Ceramic Tiles Used in the Jos-South, Area of Plateau State, Nigeria." International Journal of Advances in Scientific Research and Engineering (ijasre) 5, no. 12 (2019): 1–8. https://doi.org/10.31695/IJASRE.2019.33571.

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<em>Radiological hazards resulting from 5 different brands of ceramic tiles commonly used in homes and offices in Jos-south area of plateau state were assessed in this study by carrying out radioactivity measurement of natural radionuclides (<sup>40</sup>K, <sup>226</sup>Ra and <sup>232</sup>Th<strong>)</strong> in them using a NaI(Tl) gamma ray spectrometer. The ceramic tiles had mean activity concentrations of 44.5, 59.6 and 417.4 Bq kg<sup>-1</sup> for <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K respectively. The average radium equivalent is within the recommended limit of 370 Bq

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Waseem, Muhammad, Hannan Younis, Moustafa Salouci, et al. "Evaluation of Radiation Rates and Health Hazards from Different Cement Types in Pakistan." Atmosphere 15, no. 11 (2024): 1393. http://dx.doi.org/10.3390/atmos15111393.

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The raw materials of cement contain radioactive elements that come from natural sources. Members of the decay chains of uranium, thorium, and potassium radioisotope 40K are the primary sources of this radioactivity. The natural radionuclide concentration levels in cement differ greatly depending on different geographic areas. To estimate the radionuclides concentration in cement specimens from twelve diverse Pakistani companies, gamma-ray spectroscopy analysis was used in the study. 226Ra, 232Th, and 40K had activity concentration levels ranging from 18.08 to 43.18 Bq/kg, 16.73 to 23.53 Bq/kg,

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Kamil, Dalia Khawwam, and ,. Asma Ahmad Aziz. "Determination of radionuclide concentrations in cigarette tobacco by using Thallium-doped NaI (TI) scintillate technique." Tikrit Journal of Pure Science 25, no. 2 (2020): 81. http://dx.doi.org/10.25130/j.v25i2.961.

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This study includes the determination of natural and industrial radionuclides concentrations in different samples of cigarette tobacco. The radionuclides are U238, Th332 series and K40, as well as industrial radionuclides of Cs137.Radiation risk coefficients were calculated. The results showed that the specific activity rates of Ra226, Bi207, Ac228, K40, and Cs137 were within the global limit. The radiological hazard radium equivalent Raeq , intake dose (Dɣ), annual effective dose for external and internal exposure (AEDEout and AEDEin), health risk external and internal hazard indices data (He

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AlBayati, Auday T., Naz T. Jarallah, and Rafah I. Noori. "Determination of Radioactivity Levels in Some Rice Samples available in the Iraqi Markets Using the system of High-purity Germanium." Journal of Physics: Conference Series 3028, no. 1 (2025): 012049. https://doi.org/10.1088/1742-6596/3028/1/012049.

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Abstract This study aimed to determine the radioactivity and radiation hazard indicators of rice samples potentially for human consumption. Gamma spectroscopy was used to calculate the specific activity of natural and artificial radionuclides (238U, 232Th, 40K, and 137Cs) in local and imported rice samples collected from local markets in Baghdad Governorate, Iraq, in addition to various radiological hazard indices. The radionuclide concentrations in the samples varied from 2.123 ± 1.457 Bq/kg to 13.032 ± 3.610 Bq/kg for 238U, 2.906 ± 1.705 Bq/kg to 17.290 ± 4.158 Bq/kg for 232Th, 55.161 ± 7.42

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Seydou, Hankouraou, and Shittu Abdullahi. "Radiation Hazard Indices due to Intake of Radionuclides in Drinking Water in Gombe, Nigeria." IOSR Journal of Applied Physics 08, no. 04 (2016): 67–73. http://dx.doi.org/10.9790/4861-0804016773.

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Ahmed, Rasha S., Raghad S. Mohammed, and Ahlam Rashid Kharbat. "Determination of the Radiation Hazard Indices and Excess Lifetime Cancer Risk in Iraqi Bentonite." Journal of Al-Nahrain University Science 21, no. 1 (2018): 52–58. http://dx.doi.org/10.22401/jnus.21.1.09.

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Benaissa, K., L. N. Seladji, A. Kadum, and B. Dahmani. "Radionuclide Assessment in Imported Powdered Infant Milk Consumed in Algeria and Radiation Hazard Indices." Radiochemistry 62, no. 5 (2020): 673–80. http://dx.doi.org/10.1134/s106636222005015x.

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Lamichhane, P., B. Rijal, P. Shrestha, and B. R. Shah. "Assessment of Environmental Radioactivity in Soil Samples from Kathmandu Valley, Nepal." Journal of Nepal Physical Society 7, no. 2 (2021): 89–96. http://dx.doi.org/10.3126/jnphyssoc.v7i2.38628.

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This study was conducted to determine the amount of naturally occurring radioactivity in the soil of Nepal's Kathmandu valley. The activity of naturally occurring radionuclides was determined in these soil samples using a sodium iodide detector. Activity concentrations of 238U, 232Th, and 40K were found in the range: 32.00-111.38 Bq kg-1, 33.52-130.04 Bq kg-1, and 342.50-897.71 Bq kg-1, respectively. These values are well within the permissible range as recommended by UNSCEAR. The soil samples with the highest activity concentrations were primarily found in the valley's northern region. The ac

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Abbas, H. H., Shaymaa A. Kadhim, Shatha F. Alhous, H. H. Hussein, F. A. AL-Temimei, and H. A. A. Mraity. "Radiation Risk Among Children due to Natural Radioactivity in Breakfast Cereals." Nature Environment and Pollution Technology 22, no. 1 (2023): 527–33. http://dx.doi.org/10.46488/nept.2023.v22i01.053.

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Breakfast cereal is one of the common foods for children’s nutrition. It is made from sugar, barley, calcium carbonate, salt, maize, peanuts, molasses, and honey. Therefore, assessing the levels of radioactivity in breakfast cereal is essential for children’s health. Gamma-ray spectrometry NaI(Tl) was used to measure the radiation hazard in ten samples collected from the Iraqi market. The corresponding radiation dose quantities and hazard indices were also calculated. The average concentrations of 226Ra, 232Th, and 40K were found to be 18.195, 20.965, and 796.500 (Bq.kg-1). The annual effectiv

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Kalori, Erick Josephat. "Natural Radioactivity and Associated Radiological Hazard Indices in Carbonatite Rocks from Oldoinyo Lengai, Tanzania." International Journal of Research and Innovation in Applied Science VIII, no. XI (2023): 01–23. http://dx.doi.org/10.51584/ijrias.2023.81101.

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The distributions of naturally occurring radionuclides 232Th, 238U and 40K in carbonatite rocks from Oldoinyo Lengai region, Tanzania were determined. The Hyper-pure Germanium (HPGe) detector based on gamma spectroscopy located at Tanzania Atomic Energy Commission (TAEC) in Arusha was used in order to assess the radiological health hazards associated with the use of carbonatite rocks. The mean activity concentrations of 232Th, 226Ra and 40K were found to be 51.75 Bq/kg, 46.38 Bq/kg and 966.56 Bq/kg respectively. The results of mean activity concentration together with radiological hazard indic

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Siraz, M. M. Mahfuz, Shahidul Islam, Afroza Shelley, et al. "Radioactivity distribution and concomitant hazards evaluation of industrial zones soils from Chattogram, Bangladesh: A multivariate statistical analysis." PLOS One 20, no. 7 (2025): e0328356. https://doi.org/10.1371/journal.pone.0328356.

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Soil can pose significant radiation hazard in areas with elevated radioactivity levels from geological or anthropogenic sources, potentially contributing to human exposure through the food chain and atmosphere. However, industrial activities can alter radionuclides distribution by releasing residues or effluents, leading to their accumulation in the environment. In general, soil provides clear insights into geological characteristics and heavy metal exploration, in addition to assessing the risks of radiation exposure. This study investigates the distribution of NORMs and assesses radiological

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Uzuegbu, E. C., G. O. Avwiri, and B. C. Ndukwu. "Evaluation of Outdoor Ambient Radiation Hazard Indices in Selected Mining Sites in Kogi State, Nigeria." Current Journal of Applied Science and Technology 29, no. 2 (2018): 1–12. http://dx.doi.org/10.9734/cjast/2018/44000.

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Priharti, W., S. B. Samat, M. S. Yasir, and N. N. Garba. "Assessment of radiation hazard indices arising from natural radionuclides content of powdered milk in Malaysia." Journal of Radioanalytical and Nuclear Chemistry 307, no. 1 (2015): 297–303. http://dx.doi.org/10.1007/s10967-015-4172-8.

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A, ABDULKADIR, SEYDOU H, BAJOGA, A. D, and ANDREW A. "EVALUATION OF HAZARD INDICES OF BACKGROUND RADIATION IN SOME MAJOR TOWNS OF GOMBE STATE, NIGERIA." BIMA JOURNAL OF SCIENCE AND TECHNOLOGY (2536-6041) 6, no. 03 (2022): 151–64. http://dx.doi.org/10.56892/bima.v6i03.62.

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Interest for the determination of naturally occurring radiation and environmental radioactivity has led to the interest of extensive surveys in many countries including Nigeria. This work was carried out to ascertain the indoor and outdoor background ionizing radiation in Gombe state as a precautionary measure due to recent development of radioactive activities in the State. RDS-31 Survey meter placed 1m above the earth surface was used for taking readings. The measured average exposure rates ranged from 0.007 to 0.017 mR/h for indoor and 0.007 to 0.015 mR/h for outdoor with a total mean of 0.

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Balakrishnan, Dhanya, A. G. Umadevi, Jose P. Abraham, P. J. JoJo, M. Harikumar, and Sujata Radhakrishnan. "Assessment Of Natural Radioactivity Level And Radiation Hazard Parameters In The Terrestrial Environment Of Eloor Island, Kerala." International Journal of Fundamental Physical Sciences 5, no. 2 (2015): 38–42. http://dx.doi.org/10.14331/ijfps.2015.330084.

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The present study is aimed at measuring the concentration of primordial radionuclides in the soil samples of Eloor Island, an industrial area in Ernakulum District and evaluating the radiation exposure to the local population. The ambient radiation exposure rate was measured using portable scintillometer survey meter and the activity concentration of 232Th, 238U and 40K in the soil samples were analyzed using (5×4)” NaI(Tl) gamma spectrometer. The exposure rate measured using survey meter varied from 63 nGyh-1 to 374 nGyh-1. The activity concentration of 232Th, 238U and 40K in soil samples ran

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Xayheungsy, Sonexay, Le Hong Khiem, and Le Dai Nam. "Radiation Dose Estimation of Cement Samples Used in Lao PDR." Communications in Physics 27, no. 3 (2017): 193. http://dx.doi.org/10.15625/0868-3166/27/3/10034.

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The natural radioactivity due to presence of 226Ra, 232Th and 40K radionuclides in Lao PDR cements was measured for first time using a gamma-spectrometry with HPGe detector. Two different types of cement produced by 4 local cement companies in Lao PDR have been investigated. The specific radioactivity of 226Ra, 232Th and 40K in the investigated samples ranged from 24.83 ± 1.18 to 54.39 ± 5.90 Bq kg-1 with a mean of 37.76 ± 10.71 Bq kg-1, 6.63 ± 1.59 to 21.17 ± 0.48 Bq kg-1 with a mean of 13.77 ± 5.85 Bq kg-1 and 43.28 ± 7.68 to 168.70 ± 3.34 Bq kg-1 with a mean of 116.07 ± 47.50 Bq kg-1, respe

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Rweyemamu, Mujuni, Yesaya Sungita, Siwidhani Ndovi, Hamisi Mahingi, and Alphonce Mgina. "Assessment of the Natural Radioactivity Levels in Soils and the Associated Health Risks to the Public in Mbeya City, Tanzania." Physical Science International Journal 28, no. 3 (2024): 1–12. http://dx.doi.org/10.9734/psij/2024/v28i3827.

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The objective of this study was to assess the radioactivity levels in soils from Mbeya City and their associated health risks. Samples were collected from selected locations. Then, the samples were analyzed by using an HPGe detector to determine the concentrations of 232Th, 226Ra, and 40K. The concentrations were used to compute the radiation indices. The concentrations ranged from 13.98±1.99 to 275.93±25.88 Bq/kg for 232Th, 5.69±1.48 to 107.49±10.61 Bq/kg for 226Ra and 195.76±21.17 to 1,710.00±161.32 Bq/kg for 40K with an average of 169.55 Bq/kg, 71.86 Bq/kg and 998.42 Bq/kg, respectively. Th

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Khobotova, E.B., I.V. Hraivoronska, N.G. Honcharova, and G.A. Lyashenko. "Radiation properties of industrial waste." Engineering of nature management, no. 2(20) (June 24, 2021): 112–20. https://doi.org/10.5281/zenodo.7263924.

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The problem of obtaining environmentally safe materials is especially important when using waste products that concentrate in themselves natural radionuclides (NR), which pose a danger to human health and the environment. Similar concentrators of NR include waste from the coal mining and power engineering industries. The aim of the work was to determine the radionuclide composition of fractions of coal mining waste and fuel ash-slag and their compliance with the radiation safety standards of Ukraine and international radiological indicators. NR: <sup>226</sup>Ra, <sup>232</sup>Th, and<sup> 40<

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Duong, Van-Hao, Thanh-Duong Nguyen, Miklos Hegedus, Erika Kocsis, and Tibor Kovacs. "Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam." International Journal of Environmental Research and Public Health 18, no. 2 (2021): 469. http://dx.doi.org/10.3390/ijerph18020469.

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The determination of natural radionuclide concentrations plays an important role for assuring public health and in the estimation of the radiological hazards. This is especially true for high level radiation areas. In this study, 226Ra, 228Ra and 238U concentrations were measured in well waters surrounding eight of the high-level natural radiation areas in northern Vietnam. The 226Ra, 228Ra and 238U activity concentrations vary from <1.2 × 10−3–2.7 (0.46), <2.6 × 10−3–0.43 (0.07) and <38 × 10−3–5.32 Bq/L (0.50 of median), respectively. 226Ra and 238U isotopes in most areas are in equi

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Duong, Van-Hao, Thanh-Duong Nguyen, Miklos Hegedus, Erika Kocsis, and Tibor Kovacs. "Study of Well Waters from High-Level Natural Radiation Areas in Northern Vietnam." International Journal of Environmental Research and Public Health 18, no. 2 (2021): 469. http://dx.doi.org/10.3390/ijerph18020469.

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The determination of natural radionuclide concentrations plays an important role for assuring public health and in the estimation of the radiological hazards. This is especially true for high level radiation areas. In this study, 226Ra, 228Ra and 238U concentrations were measured in well waters surrounding eight of the high-level natural radiation areas in northern Vietnam. The 226Ra, 228Ra and 238U activity concentrations vary from <1.2 × 10−3–2.7 (0.46), <2.6 × 10−3–0.43 (0.07) and <38 × 10−3–5.32 Bq/L (0.50 of median), respectively. 226Ra and 238U isotopes in most areas are in equi

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Ramadhan, Riyadh Mnade. "Measurement of radiological baseline data of the hazard radiation in bottled drinking water samples in Basrah/Iraq." BASRA JOURNAL OF SCIENCE 38, no. 3 (2020): 544–58. http://dx.doi.org/10.29072/basjs.20203111.

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An investigation was carried out on several radiological hazard indices in twenty three bottled drinking water samples that were collected from various locations in Basrah/Iraq. The specific activity of 238U, 232Th, 40K and 137Cs isotopes was measured using the surveillance and measurement (SAM) device, model 940-2G. The specific activity values of U-238, Th-232, K-40 and Cs-137 ranged as (0.029±0.001-3.017±0.003) Bq/l, (0.025±0.002-2.326±0.001) Bq/l, (4.706±0.002-161.560±0.001) Bq/l and (0.040±0.003-0.953±0.001) Bq/l, respectively. The calculation of many risk indices have been carried out fo

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Salupeto-Dembo, Judith, Zsuzsanna Szabó-Krausz, Péter Völgyesi, Zoltán Kis, and Csaba Szabό. "External radiation exposure of the Angolan population living in adobe houses." Journal of Radioanalytical and Nuclear Chemistry 323, no. 1 (2019): 353–64. http://dx.doi.org/10.1007/s10967-019-06920-z.

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AbstractThis study aims to investigate the radioactivity of adobe in Angola, where it is a widely used building material. Sixty samples have been collected from three remote areas of the country with different geological backgrounds (Cabinda, Huambo, Menongue). Activity concentrations of 226Ra, 232Th and 40K have been determined by gamma-ray spectroscopy and radiation hazard indices were also calculated. The area Huambo shows elevated 226Ra and 232Th values which can be explained by its older geological formations. 40K concentrations are low in general. Regarding external radiation risk, adobe

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Kasumović, Amira, Ema Hankić, Amela Kasić, and Feriz Adrović. "Natural radioactivity in some building materials and assessment of the associated radiation hazards." Radiochimica Acta 106, no. 1 (2018): 79–86. http://dx.doi.org/10.1515/ract-2017-2809.

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AbstractThe results of the specific activities of232Th,226Ra and40K measured in samples of commonly used building materials in Bosnia and Herzegovina are presented. Measurements were performed by gamma-ray spectrometer with coaxial HPGe detector. The surface radon exhalation and mass exhalation rates for selected building materials were also measured. The determined values of specific activities were in range from 3.16±0.81 Bq kg−1to 64.79±6.16 Bq kg−1for232Th, from 2.46±0.95 Bq kg−1to 53.89 ±3.67 Bq kg−1for226Ra and from 28.44±7.28 Bq kg−1to 557.30±93.38 Bq kg−1for40K. The radium equivalent a

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A., I. Olanrewaju, and O. Avwiri G. "Quantification of Activity Concentrations and Radiation Hazard Indices in the Solid Minerals Exploration Fields of Benue State, Nigeria with Multivariate Statistical Approach." Advances in Research 10, no. 1 (2017): 1–13. https://doi.org/10.9734/AIR/2017/33432.

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The quantification of activity concentrations of radionuclides and the radiation hazard indices in the exploration fields of Benue State have been carried out. Samples of the environmental matrix (soil and minerals) were collected from five mining sites of barite, limestone, lead, coal and salt in Lessle, Gboko, Anyin, Owukpa and Akuana communities. The concentrations of radioactivity was analyzed using NaI (Tl) γ-ray spectroscopy. Results showed that the concentrations of activity of the primordial radionuclides <sup>40</sup>K, <sup>238</sup>U, and <sup>232</sup>Th for soil samples obtained r

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Mbonu, Charles Chisom, Aniesua A. Essiett, and Ubong C. Ben. "Geospatial assessment of radiation hazard indices in soil samples from Njaba, Imo State, South-Eastern Nigeria." Environmental Challenges 4 (August 2021): 100117. http://dx.doi.org/10.1016/j.envc.2021.100117.

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Roselin, M. SheelaUdhaya, and G. Shanthi. "EVALUATION OF RADIATION HAZARD INDICES DUE TO THE ROCK SAMPLES OF WESTERN GHATS OF SOUTH TAMILNADU." International Journal of Advanced Research 4, no. 12 (2016): 486–95. http://dx.doi.org/10.21474/ijar01/2419.

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Ekong, Godwin, Timothy Akpa, Ibrahim Umaru, Williams Lumbi, Mbet Akpanowo, and Nsikak Benson. "Assessment of Radiological Hazard Indices from Exposures to Background Ionizing Radiation Measurements in South-South Nigeria." International Journal of Environmental Monitoring and Analysis 7, no. 2 (2019): 40. http://dx.doi.org/10.11648/j.ijema.20190702.11.

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