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Rani S, Kundu RS, Garg VK, Singh B, Panghal A, Dilbaghi N. Radon and thoron exhalation rate in the soil of Western Haryana, India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:523. [PMID: 36988758 DOI: 10.1007/s10661-023-11046-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 02/21/2023] [Indexed: 06/19/2023]
Abstract
This study reports the exhalation rates of radon and thoron from surface soil collected from 60 rural sites of district Hisar, Haryana, India. The exhalation rates of Rn222 (radon) and Rn220 (thoron) were measured by portable SMART RnDuo (AQTEK SYSTEMS) using a mass accumulation chamber which was equipped with a scintillation material-coated cell. Dose rates due to natural gamma radiations ranged from 0.526 to 1.139 mSv y-1. The Rn222 mass exhalation rate in soil samples varied from 0.14 to 94.65 mBq kg-1 h-1. Thoron surface exhalation rates ranged from 46.42 to 619.88 Bq m-2 h-1. This study gives an idea about the differences in Rn222 and Rn220 exhalation at different locations which may be due to variations in geological features of the locations and characteristics of the topsoil. The findings show that usage of study area soil as building material is safe.
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Affiliation(s)
- Shakuntala Rani
- Department of Physics, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Rajender Singh Kundu
- Department of Physics, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Vinod Kumar Garg
- Department of Environmental Science and Technology, Central University of Punjab, Bathinda, India.
| | - Balvinder Singh
- Department of Physics, Guru Jambheshwar University of Science and Technology, Hisar, India
- Centre for Radioecology, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Amanjeet Panghal
- Department of Physics, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Neeraj Dilbaghi
- Centre for Radioecology, Guru Jambheshwar University of Science and Technology, Hisar, India
- Department of Bio & Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, India
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2
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Determination of terrestrial γ-radiation dose rate and soil radon concentration in a river region of Southern China. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08311-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Yang J, Sun Y. Natural radioactivity and dose assessment in surface soil from Guangdong, a high background radiation province in China. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.01.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Chen T, Zhao H, Wu K, Zhang Z, Jin Q, Liu S, Li L. Distributional Characteristics and Source Identification of Cadmium in Soils of the Pearl River Delta, China. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:75-85. [PMID: 32681240 DOI: 10.1007/s00128-020-02924-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 06/23/2020] [Indexed: 06/11/2023]
Abstract
The results of the Multi-Purpose Geochemical Survey in the Pearl River Delta (PRD) show that the pollution is serious. In this study, the influence of geological genesis, soil-forming process, and human activities on soil quality in PRD is analyzed, and the influence factors, genesis and spatial distributional characteristics of cadmium (Cd) in different soil depths are studied by inverse distance weighted (IDW) and hot spot analysis. The results show that the spatial distribution of Cd is significantly different in PRD and high-value is mainly concentrated in the central cities of Guangzhou-Foshan-Jiangmen-Zhongshan-Zhuhai. Moreover, hot spots with higher Cd content in deep are mainly along Beijiang, Dongjiang, and Pearl River Estuary (PRE). Overall, our findings suggest that the high background value areas formed by marine-land and fluvial sediments as well as intensive human activities that make PRD become an area under the dual restriction of geological genesis and human activities, pollution control cannot be ignored.
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Affiliation(s)
- Tingyong Chen
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Huafu Zhao
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China.
- Key Lab of Land Consolidation, Ministry of Natural Resources of the PRC, Beijing, 100035, China.
| | - Kening Wu
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China
- Key Lab of Land Consolidation, Ministry of Natural Resources of the PRC, Beijing, 100035, China
| | - Zhuo Zhang
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China
- Key Lab of Land Consolidation, Ministry of Natural Resources of the PRC, Beijing, 100035, China
| | - Qiu Jin
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Shuang Liu
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China
| | - Lihua Li
- School of Land Science and Technology, China University of Geosciences, Beijing, 100083, China
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5
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Leuangtakoun S, Phan GTT, Duong TD, Le NT, Khong NK, Singsoupho S, Tran HN, Bui VL. Natural radioactivity measurement and radiological hazard evaluation in surface soils in a gold mining area and surrounding regions in Bolikhamxay province, Laos. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07408-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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6
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Adewoyin OO, Omeje M, Joel ES, Odetunmibi OA. STATISTICAL ESTIMATION OF RADIOLOGICAL HAZARDS FROM RADIONUCLIDE CONTENTS IN BUILDING MATERIALS. RADIATION PROTECTION DOSIMETRY 2019; 185:519-525. [PMID: 31329979 DOI: 10.1093/rpd/ncz047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 03/06/2019] [Accepted: 03/13/2019] [Indexed: 06/10/2023]
Abstract
Thirteen (13) types of building tiles and Sharp sand commonly used for building purposes were collected for their radionuclide contents analysis using gamma ray spectrometry. The average value of the Radium equivalent activity is 208.81 Bq/kg for all samples considered was found to be lower than the recommended safe limit of 370 Bq/kg. Similarly, both external and internal hazard indices (Hex and Hin) were noted to have mean values of 0.57 and 0.73, respectively, which were lower than the recommended safe standard of 1. More so, the average absorbed gamma dose rate was observed to be 94.31 nGy/h, much higher than the recommended safe limit of 59 nGy/h.
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Affiliation(s)
- O O Adewoyin
- Department of Physics, College of Science and Technology, Covenant University, Ota, Ogun State 112233, Nigeria
| | - M Omeje
- Department of Physics, College of Science and Technology, Covenant University, Ota, Ogun State 112233, Nigeria
| | - E S Joel
- Department of Physics, College of Science and Technology, Covenant University, Ota, Ogun State 112233, Nigeria
| | - O A Odetunmibi
- Department of Mathematics, College of Science and Technology, Covenant University, Ota, Ogun State 112233, Nigeria
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7
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Natural radioactivity and radiological hazards in soil samples in Savannakhet province, Laos. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06965-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Alshahri F. Natural and anthropogenic radionuclides in urban soil around non-nuclear industries (Northern Al Jubail), Saudi Arabia: assessment of health risk. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:36226-36235. [PMID: 31713138 DOI: 10.1007/s11356-019-06647-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
The residential areas are located around one of the oldest and largest non-nuclear industrial cities in Saudi Arabia, Arabian Gulf. Therefore, it is important to study the radioactivity levels in the urban soil in order to estimate the potential risk of radiation in environment and for public. The activity concentrations of 226Ra, 232Th, 40K, and 137Cs in urban soil around non-nuclear industries were measured using gamma ray spectrometric technique. The mean values of activity concentrations were found to be 7.64 ± 0.4, 3.76 ± 0.2, 174 ± 3.7, and 0.391 ± 0.03 (Bq/kg) for 226Ra, 232Th, 40K, and 137Cs, respectively. Radium equivalent activity (Raeq), gamma absorbed dose rate in air (D), and annual effective dose equivalent (E) for outdoor were calculated. The mean values of these radiological parameters were found to be less than the allowed limits in soil. The obtained results were compared with other studies from Arabian Gulf and other regions of the world. Consequently, the direct gamma radiation exposure from the urban soil in the study area was found to be safe for public. Additionally, the present study is the first in this area which could be used as a baseline for radioactivity levels in soil nearby industrial areas of the Arabian Gulf region.
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Affiliation(s)
- Fatimh Alshahri
- Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441, Saudi Arabia.
- Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441, Saudi Arabia.
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9
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Estimation of radiological indices in Indian Sundarbans: a mangrove habitat. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06597-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Sharma P, Kumar Meher P, Prasad Mishra K. Terrestrial gamma radiation dose measurement and health hazard along river Alaknanda and Ganges in India. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2019. [DOI: 10.1016/j.jrras.2014.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Prerna Sharma
- Division of Life Sciences, Research Centre, Nehru Gram Bharati University, Allahabad, 211002, India
| | - Prabodha Kumar Meher
- Division of Life Sciences, Research Centre, Nehru Gram Bharati University, Allahabad, 211002, India
| | - Kaushala Prasad Mishra
- Division of Life Sciences, Research Centre, Nehru Gram Bharati University, Allahabad, 211002, India
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11
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Depleted uranium residues, NORMs and137Cs in the coastal zone soil of Musandam Peninsula, Hurmuz strait region, Sultanate of Oman. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2019. [DOI: 10.1016/j.jrras.2018.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Activity concentrations of radionuclides in soil samples along the coastal areas of Kerala, India and the assessment of radiation hazard indices. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06481-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Luo X, Jiao JJ, Moore WS, Cherry JA, Wang Y, Liu K. Significant chemical fluxes from natural terrestrial groundwater rival anthropogenic and fluvial input in a large-river deltaic estuary. WATER RESEARCH 2018; 144:603-615. [PMID: 30096687 DOI: 10.1016/j.watres.2018.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 06/12/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
The shores of the Pearl River estuary are home to 35 million people. Their wastes are discharged into the large river delta-front estuary (LDE), one of the most highly polluted systems in the world. Here we construct a radium reactive transport model to estimate the terrestrial groundwater discharge (TGD) into the highly urbanized Pearl River LDE. We find the TGD comprises only approximately 0.9% in term of water discharge compared to the river discharge. The TGD in the Pearl River LDE delivers significant chemical fluxes to the coast, which are comparable to the fluvial loadings from Pearl River and other world major rivers. Of particular importance is the flux of ammonium because of its considerable role in Pearl River estuary eutrophication and hypoxia. Unlike the ammonium in many other aquifers, the ammonium in the Pearl River aquifer system is natural and originated from organic matter remineralization by sulfate reduction in the extremely reducing environment. The TGD derived NH4+ is as much as 5% of the upstream Pearl River fluvial loading and 42% of the anthropogenic inputs. This high groundwater NH4+ flux may greatly intensify the eutrophication, shift the trophic states, and lead to alarming hypoxia within the affected ecosystems in the Pearl River LDE. The large TGD derived chemical fluxes will lead to deterioration of water and will potentially affect human health.
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Affiliation(s)
- Xin Luo
- Department of Earth Sciences, The University of Hong Kong, PR China; The University of Hong Kong, Shenzhen Research Institute (SRI), Shenzhen, PR China; The University of Hong Kong-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, PR China
| | - Jiu Jimmy Jiao
- Department of Earth Sciences, The University of Hong Kong, PR China; The University of Hong Kong, Shenzhen Research Institute (SRI), Shenzhen, PR China; The University of Hong Kong-Zhejiang Institute of Research and Innovation (HKU-ZIRI), Hangzhou, PR China.
| | - Willard S Moore
- Department of Earth and Ocean Sciences, University of South Carolina, Columbia, 29208, SC, USA
| | - John A Cherry
- School of Engineering, University of Guelph, Guelph, ON, N1G 2W1, Canada
| | - Ya Wang
- School of Earth Science and Geological Engineering, Sun Yat-sen University Guangzhou, 510275, PR China
| | - Kun Liu
- China Institute of Geo-Environment Monitoring, China Geological Survey, PR China
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14
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Aközcan S, Külahcı F, Mercan Y. A suggestion to radiological hazards characterization of 226Ra, 232Th, 40K and 137Cs: spatial distribution modelling. JOURNAL OF HAZARDOUS MATERIALS 2018; 353:476-489. [PMID: 29705661 DOI: 10.1016/j.jhazmat.2018.04.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 03/24/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Spatial distribution modelling has been proposed to characterize the radiological hazards associated with concentration of natural 226Ra, 232Th, 40K and artificial 137Cs radionuclides in the nature. These elements have been determined for the sediment samples of the Bafa Lake with the aim of radiation hazard evaluation via a high purity germanium detector gamma spectrometry. Their activity concentrations in sediments are in the ranges of 29.87 ± 2.2-72.56 ± 11 Bq kg- 1 dry weight (dw), 31.57 ± 3.5-66.48 ± 8.3 Bq kg- 1 (dw), 332.01 ± 12-1092.37 ± 21 and 0.65 ± 0.04-3.96 ± 0.78 Bq kg- 1 (dw), respectively. In order to determine the radiological hazard associated with the radioactivity in the samples, the external terrestrial gamma dose rate in air, annual effective dose rate, the radium equivalent activity and the external hazard index are calculated and compared with the data from literature. Moreover, the spatial modelling distributions are obtained visually for radiological hazards characterization of these elements, which are very dangerous in terms of radiological and environmental pollution in the nature. These visual distributions give meaningful information for future researches on the migration of radionuclides in the environment.
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Affiliation(s)
- Serpil Aközcan
- Kirklareli University, Faculty of Science and Letters, Department of Physics, Campus of Kayali, Kirklareli, Turkey
| | - Fatih Külahcı
- Fırat University, Science Faculty, Physics Department, Nuclear Physics Division, TR-23119, Elazig, Turkey.
| | - Yeliz Mercan
- Kirklareli University, School of Health, Campus of Kayali, Kirklareli, Turkey
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15
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Hazard indices and annual effective dose due to terrestrial radioactivity in Northern Kerala, India. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5583-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Measurement of naturally occurring radioactive material, 238U and 232Th: part 2—optimization of counting time. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5205-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Measurement of naturally occurring radioactive materials, 238U and 232Th: anomalies in photopeak selection. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4988-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Wang J, Liu J, Chen Y, Song G, Chen D, Xiao T, Wu S, Chen F, Yin M. Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China. J Radioanal Nucl Chem 2016. [DOI: 10.1007/s10967-016-4809-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Moldovan M, Nita DC, Cucos-Dinu A, Dicu T, Bican-Brisan N, Cosma C. Radon concentration in drinking water and supplementary exposure in Baita-Stei mining area, Bihor county (Romania). RADIATION PROTECTION DOSIMETRY 2014; 158:447-452. [PMID: 24153421 DOI: 10.1093/rpd/nct258] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The radon concentration was measured in the drinking water of public water supply and private wells located in the mining area of BăiŢa-Ştei, Bihor County, Romania. The measurements were performed using the LUK-VR system based on radon gas measurement with Lucas cell. The results show that the radon concentrations are within the range of 1.9-134.3 kBq m(-3) with an average value of 35.5 kBq m(-3) for well water, 18.5 kBq m(-3) for spring water and 6.9 kBq m(-3) for tap water. Comparing with previous data from the whole of Transylvania, the average value is two times higher, proving this zone to be a radon-prone area. From the results of this study the effective dose to the population is between 4.78 and 338.43 µSv y(-1). These doses are within the recommended limits of the world organisations.
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Affiliation(s)
- Mircea Moldovan
- Environmental Science and Engineering Faculty, ' Babeş-Bolyai' University, Cluj-Napoca, Romania
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Blanco Rodríguez P, Vera Tomé F, Lozano JC. Assessment of the vertical distribution of natural radionuclides in a mineralized uranium area in south-west Spain. CHEMOSPHERE 2014; 95:527-534. [PMID: 24182407 DOI: 10.1016/j.chemosphere.2013.09.111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/12/2013] [Accepted: 09/26/2013] [Indexed: 06/02/2023]
Abstract
Low-level alpha spectrometry techniques using semiconductor detectors (PIPS) and liquid scintillation (LKB Quantulus 1220™) were used to determine the activity concentration of (238)U, (234)U, (230)Th, (226)Ra, (232)Th, and (210)Pb in soil samples. The soils were collected from an old disused uranium mine located in southwest Spain. The soils were sampled from areas with different levels of influence from the installation and hence had different levels of contamination. The vertical profiles of the soils (down to 40 cm depth) were studied in order to evaluate the vertical distribution of the natural radionuclides. To determine the origin of these natural radionuclides the Enrichment Factor was used. Also, study of the activity ratios between radionuclides belonging to the same radioactive series allowed us to assess the different types of behaviors of the radionuclides involved. The vertical profiles for the radionuclide members of the (238)U series were different at each sampling point, depending on the level of influence of the installation. However, the profiles of each point were similar for the long-lived radionuclides of the (238)U series ((238)U, (234)U, (230)Th, and (226)Ra). Moreover, a major imbalance was observed between (210)Pb and (226)Ra in the surface layer, due to (222)Rn exhalation and the subsequent surface deposition of (210)Pb.
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Affiliation(s)
- P Blanco Rodríguez
- Natural Radioactivity Group, Extremadura University, Avd. Elvas s/n, 06071 Badajoz, Spain
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21
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Ye R, Gan N. Estimation of terrestrial air-absorbed dose rate from the data of regional geochemistry database. J NUCL SCI TECHNOL 2013. [DOI: 10.1080/00223131.2014.866914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Öztürk BC, Çam NF, Yaprak G. Reference levels of natural radioactivity and (137)Cs in and around the surface soils of Kestanbol pluton in Ezine region of Çanakkale province, Turkey. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2013; 48:1522-32. [PMID: 23802161 DOI: 10.1080/10934529.2013.797242] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The aim of the study was to conduct a systematic investigation on the natural gamma emitting radionuclides ((226)Ra, (232)Th and (40)K) as well as (137)Cs in the surface soils from Kestanbol/Ezine plutonic area in Çanakkale province as part of the environmental monitoring program on radiologic impact of the granitoid areas in Western Anatolia. The activity measurements of the gamma emitters in the surface soil samples collected from 52 sites distributed all over the region has been carried out, by means of HPGe gamma-ray spectrometry system. The activity concentrations of the relevant radionuclides in the soil samples appeared in the ranges as follows: (226)Ra was 20-521 Bq kg(-1); (232)Th, 11-499 Bq kg(-1)and; (40)K, 126-3181 Bq kg(-1), yet the (137)Cs was much lower than 20 Bq kg(-1)at most. Furthermore, based on the available data, the radiation hazard parameters associated with the surveyed soils were calculated. The present data also allowed evaluation of some correlations that may exist in the investigated natural radionuclides of the soil samples from the plutonic area in Çanakkale province. It is concluded from the above that the concerned region did not lead to any significant radiological exposure to the environment.
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Affiliation(s)
- Buket Canbaz Öztürk
- Department of Physics, Faculty of Sciences, Ege University, Bornova, Izmir, Turkey.
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23
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Almayahi B, Tajuddin A, Jaafar M. Radiation hazard indices of soil and water samples in Northern Malaysian Peninsula. Appl Radiat Isot 2012; 70:2652-60. [DOI: 10.1016/j.apradiso.2012.07.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Revised: 07/23/2012] [Accepted: 07/24/2012] [Indexed: 10/28/2022]
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24
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Huy NQ, Hien PD, Luyen TV, Hoang DV, Hiep HT, Quang NH, Long NQ, Nhan DD, Binh NT, Hai PS, Ngo NT. Natural radioactivity and external dose assessment of surface soils in Vietnam. RADIATION PROTECTION DOSIMETRY 2012; 151:522-531. [PMID: 22434923 DOI: 10.1093/rpd/ncs033] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this study, natural radioactivity in surface soils of Vietnam and external dose assessment to human population, deduced from activities of (226)Ra, (232)Th and (40)K nuclides, were determined. From 528 soil samples collected in 63 provinces of Vietnam, including five centrally governed cities, the average activities were obtained and equal to 42.77 ± 18.15 Bq kg(-1) for (226)Ra, 59.84 ± 19.81 Bq kg(-1) for (232)Th and 411.93 ± 230.69 Bq kg(-1) for (40)K. The outdoor absorbed dose rates (OADRs) in air at 1 m above the ground level for 63 provinces were calculated, and their average value was 71.72 ± 24.72 nGy h(-1), with a range from 17.45 to 149.40 nGy h(-1). The population-weighted OADR of Vietnam was 66.70 nGy h(-1), which lies in the range of 18-93 nGy h(-1) found in the World. From the OADRs obtained, it was estimated that the outdoor annual effective dose and indoor annual effective dose to the population were 0.082 and 0.458 mSv, which are higher than the corresponding values 0.07 and 0.41 mSv, respectively, of the World. The radium equivalent activity Ra(eq) and the external hazard index H(ex) of surface soils of Vietnam are lower than the corresponding permissible limits of 370 Bq kg(-1) and 1, respectively. Therefore, soil from Vietnam is safe for the human population when it is used as a building material.
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Affiliation(s)
- N Q Huy
- Ho Chi Minh City University of Industry, 12 Nguyen Van Bao Street, Ward 4, Go Vap District, Ho Chi Minh City, Vietnam.
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