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The convergence approach may be critical to improving early situational awareness in hostile radioactive environments J. Environ. Radioact. (IF 2.3) Pub Date : 2024-03-13 Vitor W.L. Silva, William H.S. Profeta, Rodrigo C. Curzio, Avelino Santos, Tercio Brum, Edson R. Andrade
This study explores the impact of a simulated radiological dispersal device (RDD) event in an urban area on young adults around 20 years old. The RDD releases radioactive Cs-137 (7.0E+3 Ci), a common industrial sterilization source. The study aims to demonstrate that combining computational codes and epidemiological models can produce valuable data to guide initial actions when confronting a hostile
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Levels of naturally occurring radioisotopes in local and imported bottled drinking water available in Québec City, Canada J. Environ. Radioact. (IF 2.3) Pub Date : 2024-03-11 Jean-Christophe Tremblay-Cantin, Laurie Martin, Myriame Proulx, Nicholas D. Priest, Dominic Larivière
Consumption of local and imported bottled water in Canada has greatly increased during the past three decades. While the presence of natural radioactivity is often overlooked when dealing with the water quality of these bottled products, it could contribute substantially to the uptake of radionuclides especially when sourced from regions with higher radioactivity levels compared to where it is consumed
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Assessment of exposures to firefighters from wildfires in heavily contaminated areas of the Chornobyl Exclusion Zone J. Environ. Radioact. (IF 2.3) Pub Date : 2024-03-07 Valery Kashparov, Serhii Kirieiev, Vasyl Yoschenko, Sviatoslav Levchuk, Dmytrii Holiaka, Marina Zhurba, Leonid Bogdan, Denys Vyshnevskyi, Deborah H. Oughton
The aim of this study was to assess the exposures received by firefighters engaged in extinguishing the large-scale wildfires in the most contaminated areas of the Ukrainian part of the Chornobyl Exclusion Zone in 2016 and 2020. The assessments are based on measurements of radionuclide airborne concentrations in the breathing zones of workers and at the aerosol sampling stations of the automated radiation
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Development of methodology for identification and assessment of ecosystems with an underground source of tritium J. Environ. Radioact. (IF 2.3) Pub Date : 2024-03-05 S.N. Lukashenko, D.N. Kurbakov, A.V. Tomson, M.A. Edomskaya, A.V. Mikhailov
The article considers the issues of working out the suitable approaches for identifying zones with the presence of underground near-surface waters with increased concentrations of tritium discharged into a surface reservoir. The following methods were used as possible methods: determination of tritium content in snow cover, determination of tritium content in vegetation in the form of tritium of free
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The causes of the abrupt enhancement of the natural gamma radiation in the thunderous atmosphere on the mountain tops J. Environ. Radioact. (IF 2.3) Pub Date : 2024-03-01 A. Chilingarian, B. Sargsyan
The study presented the relationship between sudden Natural Gamma Radiation (NGR) increases related to enhanced atmospheric electric fields. We pinpoint Thunderstorm Ground Enhancements (TGEs) as the primary source of abrupt and significant NGR spikes. These TGEs, which are transient, several-minute-long increases in elementary particle fluxes, originate from natural electron accelerators within thunderclouds
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Long-term radiocarbon variation studies in the air and tree rings of Slovakia J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-26 P.P. Povinec, I. Kontul’, M. Ješkovský, J. Kaizer, M. Richtáriková, A. Šivo, J. Zeman
Fifty-five years of radiocarbon variation studies are reviewed with an emphasis on a better understanding of the impacts of the Bohunice nuclear power plant and fossil fuel CO on the atmosphere and biosphere of Slovakia. The maximum ΔC levels in the air up to about 1200‰ were observed during the 1970s at the Žlkovce monitoring station, which after 2005 decreased to <30‰. A relative decrease in the
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Level, distribution and sources of Np, Pu and Am isotopes in Peter the Great Bay of Japan sea J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-22 Jiang Sun, Shaodong Zhu, Shan Xing, Natalia V. Kuzmenkova, Chenyang Peng, Yiman Lu, Alexandra Rozhkova, Vladimir G. Petrov, Keliang Shi, Stepan N. Kalmykov, Xiaolin Hou
Transuranium elements such as Np, Pu and Am, are considered to be the most important radioactive elements in view of their biological toxicity and environmental impact. Concentrations of Np, Pu isotopes and Am in two sediment cores collected from Peter the Great Bay of Japan Sea were determined using radiochemical separation combined with inductively coupled plasma mass spectrometry (ICP-MS) measurement
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Concentrations and distribution of 210Pb in bird feathers and its potential for tracing age and flight times J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-16 Sara Fraixedas, Alba Riera, Carles Barriocanal, Irene Alorda-Montiel, Javier Quesada, Valentí Rodellas, Jordi Garcia-Orellana
Bird feathers have been widely used as environmental indicators, providing key information on environmental pollution. However, there is little available information on the adsorption of natural radioactivity in bird feathers and consequently, its impact on the field of movement ecology is not yet known. This study investigates the concentration and distribution of Pb in wing- and tail-feathers of
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Influence of earthquake on radon exhalation law at the beach of the uranium tailing reservoir under high temperature environment J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-13 Chengyan Yan, Yong Liu, Dongyin Lin, Xingwang Dai, Le Xiao, Zhangkai Chen, Zhenghao He, Yifan Chen
In this paper, the influence of an earthquake on radon exhalation rate of uranium tailings reservoir beach under high temperature environment is studied by using a self-made integrated simulation test device for natural disasters, and a scale model test based on similarity and dimensional laws. The results show that, (1)When the peak acceleration reaches 0.6g, the radon exhalation rate increases sharply
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Utilization of nickel-graphite electrode as an electron donor for high-efficient microbial removal of solved U(VI) mediated by Leifsonia sp. J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-11 Wenfa Tan, Han Wu, Chuqin Huang, Junwen Lv, Huang Yu
Enzymatically catalyzed reduction of metals by bacteria has potential application value to uranium-mine wastewater. However, its practical implementation has long been restricted by its intrinsic drawbacks such as low efficiency and long treatment-time. This study aims to explore the effect of electrodes on U (VI) removal efficiency by a purified indigenous bacteria isolated from a uranium mining waste
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Using spectroscopic autoradiography of alpha particles for the quantitative mapping of 226Ra ultra-traces in geo-materials J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-10 Hugo Lefeuvre, Sophie Billon, Michael Descostes, Jérôme Donnard, Samuel Duval, Paul Sardini
The measurement of Ra and the identification of Ra-bearing minerals are important for studying the behavior of radium in the environment. Various instruments for measuring Ra are currently used: among the radiometric techniques that measure in bulk (no spatialization), there are gamma spectrometers and alpha spectrometers. Other instruments such as SEM-EDS can map the chemical elements thus providing
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Effect of RSN1 gene knockout on the adsorption of strontium ions by irradiated Saccharomyces cerevisiae J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-07 Jundong Feng, Liuxin Tian, Weitai Wang, Yingqing Yang, Qian Li, Liang Liu, Hongyu Bo, Chengyu He
The irradiated (Y-7) has good biosorption ability for strontium ions. To investigate the mechanism of strontium ion bioaccumulation in Y-7, we employed CRISPR/Cas9 gene editing technology to engineer Y-7 and knock out the RSN1 gene, successfully constructing a RSN1 gene knockout strain (Y-7-rsn1Δ). When tested for strontium ion adsorption, the Y-7-rsn1Δ strain exhibited decreased capacity for adsorbing
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Assessment of radiation dose to people and wildife inhabiting the Grote Nete catchment in Belgium J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-06 L. Sweeck, J. Vives i Batlle, N. Vanhoudt
We evaluate the impact of the radiological contamination of the Grote Nete catchment in Belgium to people and non-human biota. This region has received effluents from the phosphate and nuclear industries via tributaries of the Grote Nete river in past decades, resulting in the presence of radionuclides such as Am, Co, Cs, K, Pb, Pu, Pu, Ra, Ra, Th, Th, U, U and U. During the period 2016–2021, we measured
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Lost life expectancy following a hypothetical urban radiological incident J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-04 Suzana C.T. Neves, Luis R.P. Horta, Rodrigo V. Machado, Danielle E.G. Furuya, Pollyana S. Shimada, Alba R.A. Arana, Ana Paula A. Favareto, Edson R. Andrade
The consequences of mass radiological events, particularly those involving the activation of a radiological dispersion device (RDD), have been extensively studied by scientific groups. However, the critical initial period of such an event, usually spanning the first 100 h, can be characterized by a scarcity of information, potentially leading to delays in mitigating strategies. In response, a research
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Comparison of atmospheric radionuclide dispersion models for a risk-informed consequence-driven advanced reactor licensing framework J. Environ. Radioact. (IF 2.3) Pub Date : 2024-02-03 Jeffrey Wang, Daniel Clayton, Shaheen Azim Dewji
Current nuclear facility emergency planning zones (EPZs) are based on outdated distance-based criteria, predating comprehensive dose and risk-informed frameworks. Recent advancements in simulation tools have permitted the development of site-specific, dose, and risk-based consequence-driven assessment frameworks. This study investigated the computation of advanced reactor (AR) EPZs using two atmospheric
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About fluctuations in the excess 210Pb flux into the East Siberian Arctic Shelf sediments, the Laptev Sea J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-31 Valeriy Y. Rusakov, Ruslan A. Lukmanov, Alexander S. Savin
The Laptev Sea is remote from the impact of technogenic radionuclides, which makes it a convenient natural testing ground for determining the natural flux of radionuclides to the marine environment and further to sediments. Analysis of the use of different models for dating recent sediments using 210Pb showed that in conditions of erosion-accumulative (unstable) sedimentation of the shelf, the constant
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Effect of litter removal five years after the Fukushima accident on 137Cs uptake by Japanese cedar J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-31 Yoshimi Ohmae, Wataru Sakashita, Tadashi Sakata, Naohiro Imamura, Satoru Miura, Akio Akama, Yoshiki Shinomiya
Removal of litter-associated 137Cs from the forest floor (litter removal) can reduce the 137Cs uptake by plants; however, the proposed effective period for litter removal was 1–2 years after the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident. This is because the 137Cs in forest soil migrates rapidly from the litter to surface mineral soil layers in Japanese forests, and thus the effectiveness
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Radioecological behaviour of 137Cs in rockfish of the southern coastal waters off Fukushima during 2017–2021 J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-28 Yutaka Tateda, Michio Aoyama, Yasunori Hamajima, Daisuke Tsumune, Takashi Ishimaru, Yukari Ito, Hyoe Takata
Following the accident at the Fukushima Dai-ichi Nuclear Power Station, radiocaesium concentrations were specifically elevated in rockfish species compared to other fish species. To clarify the likely reasons, a caesium metabolic rate in the Japanese rockfish Sebastes cheni was derived by an aquarium experiment of live fish collected from the area off Fukushima. Stable caesium and 137Cs concentration
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Numerical simulations of radon exhalation from surrounding rocks of single and double underground roadways J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-23 Daijia Chen, Yongjun Ye, Ming Xia, Shanwei Shang, Zhiguo Yan, Long Kiu Chung
The radon exhalation rate of surrounding rocks in underground roadways is an important parameter in determining radon exhalation capacity and ventilation flowrate for radon removal. By approximating the roadways as thick-walled, porous cylinders, this study investigates radon exhalation from their surrounding rocks via simulations using computational fluid dynamics (CFD). Radon exhalation rates of
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Seasonal variations of radon activity concentration in mofettes from Harghita and Covasna Counties, Romania J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-25 Tamás Néda, Apor Dósa
In Harghita and Covasna County (Romania) are many mofettes. The mofette is mainly CO2 composed low temperature volcanic gas emanation. The mofettes can contain important quantities of radon. In these regions of Romania, the mofettes have long been used on curative purposes. We proposed monitoring the seasonal variation of radon activity concentration (RAC) in 10 frequented mofettes. Measurements in
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A baseline for source localisation using the inverse modelling tool FREAR J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-22 Pieter De Meutter, Ian Hoffman, Andy W. Delcloo
A global network of monitoring stations is set up that can measure tiny concentrations of airborne radioactivity as part of the verification regime of the Comprehensive Nuclear-Test-Ban Treaty. If Treaty-relevant detections are made, inverse atmospheric transport modelling is one of the methods that can be used to determine the source of the radioactivity. In order to facilitate the testing of novel
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Upscaling ground-based backpack gamma-ray spectrometry to spatial resolution of UAV-based gamma-ray spectrometry for system validation J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-23 Sven Altfelder, Benedikt Preugschat, Milan Matos, Felix Kandzia, Benjamin Wiens, Otabek Eshmuradov, Christian Kunze
Advances in the development of gamma-ray spectrometers have resulted in devices that are ideal for use in conjunction with the increasingly reliable systems of autonomously flying uncrewed aerial vehicles (UAVs) that have recently become available on the market. Airborne gamma-ray spectrometry (GRS) measurements have many different applications. Here, the technique is applied to a former uranium mining
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Study on the influence of water content on radon emission from loess J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-18 Jian Luo
Radon, an environmental pollutant gas, occurs naturally in soil. Although loess, an essential building material in northwest China, is commonly used, research on radon emissions from loess remains limited. This study aims to address this gap by conducting both field and laboratory experiments to examine the impact of water content on radon emission from loess. The findings reveal that the radon emission
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A pilot study of radiocesium activity concentration in the stemflow of deciduous broad-leaved trees: Its relationship with leaves and outer bark as of 2022–2023 J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-19 Wataru Sakashita, Naohiro Imamura, Tadashi Sakata, Ren Tsuneoka, Yoshiki Shinomiya
The radiocesium (137Cs) activity concentration in stemflow, which is an element of the 137Cs cycle in the forest, is determined by the supply of 137Cs from the outer bark and leaves. Long-term monitoring data of deciduous broad-leaved trees since the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident have shown the 137Cs activity concentration in the outer bark decreasing exponentially, while that
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Obituary: Professor Nicholas A. Beresford (Nick) 1964–2023 J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-18 Catherine L. Barnett, Michael D. Wood, David Copplestone, Sergey Gashchak, Tamara L. Yankovich
Abstract not available
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Comparison of source-location algorithms for atmospheric samplers J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-18 Paul W. Eslinger, W. Steven Rosenthal, Ramesh S. Sarathi, Brian T. Schrom, Erin McCann
Numerous algorithms have been developed to determine the source characteristics for an atmospheric radionuclide release, e.g., (Bieringer et al., 2017). This study compares three models that have been applied to the data collected by the International Monitoring System operated by the Comprehensive Nuclear-Test-Ban Treaty Organization Preparatory Commission to estimate source event parameters. Each
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Impacts of future nuclear power generation on the international monitoring system J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-18 Paul W. Eslinger, Charles G. Doll, Theodore W. Bowyer, Judah I. Friese, Lori A. Metz, Ramesh S. Sarathi
Many countries are considering nuclear power as a means of reducing greenhouse gas emissions, and the IAEA (IAEA, 2022) has forecasted nuclear power growth rates up to 224% of the 2021 level by 2050. Nuclear power plants release trace quantities of radioxenon, an inert gas that is also monitored because it is released during nuclear explosive tests. To better understand how nuclear energy growth (and
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Long-term changes in 90Sr pools of Scots pine biomass in the Chornobyl Red Forest J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-12 Vasyl Yoschenko, Yves Thiry, Dmytrii Holiaka, Sviatoslav Levchuk, Valery Kashparov, Kenji Nanba
The trenches of the waste burial site in the Chornobyl Red Forest represent a big reservoir of radionuclides for the artificial plantation of Scots pine established in that area, but the long term dynamics of tree biomass contamination, especially with 90Sr, remains unclear. The present study was conducted between 2005 and 2018 on two groups of trees of the same age. The IN group is represented by
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Application of CFD modeling for indoor radon and thoron dispersion study: A review J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-06 Rajat Parkash, Neetika Chauhan, R.P. Chauhan
This paper provides an in-depth discussion of the CFD implications to the design/study of interior environments and an overview of the most widely used CFD model for indoor radon and thoron dispersion study. For the design and analysis of indoor environments, CFD is a powerful tool that enables simulation and measurement-based validation. Simulating an indoor environment involves deliberate thought
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Corrigendum to “Understanding deforestation impacts in western Iran: Insights from Plutonium atom ratios for quantifying Chernobyl contributions of 137Cs reference inventory” [J. Environ. Radioact. 257 (2023) 107078] J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-05 Maral Khodadadi, Christine Alewell, Mohammad Mirzaei, Ehssan Ehssan-Malahat, Farrokh Asadzadeh, Peter Strauss, Katrin Meusburger
Abstract not available
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Impact of medical radionuclide discharges on people and the environment J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-05 J. Vives i Batlle, L. Sweeck, F. Fiengo Pérez
We present a novel methodology to dynamically calculate dose rates to people and wildlife from hospital-released radionuclides reaching the environment through water treatment plants (WTPs), using the biokinetic model D-DAT for aquatic wildlife, applied to 18F, 123I, 131I, 153Sm, 99mTc and 201Tl. We have also developed a method to calculate doses to WTP workers and to farmers from agricultural practices
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The records of 239+240Pu and 137Cs of global fallout in Lake East Dongting Sediments and Responses to watershed environmental changes J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-02 Anguo Peng, Mengting Chen, Xuebin Li, Husheng He
Plutonium-239 + 240 and 137Cs in the environment can usually be used to track the impact of nuclear activities on the environment, and have become important tools in environmental geochemical studies. In this study, nine sediment cores (E1-E9) in Lake East Dongting were collected and measured for the activity concentration of 239+240Pu, 137Cs and the atomic ratio of 240Pu/239Pu, and then their vertical
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Computational analysis of radon progeny deposition patterns in the human respiratory system J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-02 R. Rabi, L. Oufni, N. Kayouh
In the last year, the use of computational fluid dynamics (CFD) techniques has gained prominence as a powerful tool for modeling biological phenomena and influencing the design of biomedical devices. In this study, we utilized a computational fluid dynamics (CFD) model to simulate airflow and the deposition of aerosol particles within the human respiratory tract. To achieve this, we meticulously constructed
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Microbial removal of uranyl from aqueous solution by Leifsonia sp. in the presence of different forms of iron oxides J. Environ. Radioact. (IF 2.3) Pub Date : 2024-01-03 Chao Pang, Yuan Li, Han Wu, Zhiwen Deng, Shanlin Yuan, Wenfa Tan
Immobilization of uranyl by indigenous microorganisms has been proposed as an economic and clean in-situ approach for removal of uranium, but the potential mechanisms of the process and the stability of precipitated uranium in the presence of widespread Fe(III) (hydr)oxides remain elusive. The potential of iron to serve as a reductant and/or an oxidant of uranium indicates that bioemediation strategies
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Multi-scenario validation of the robust inversion method with biased plume range and values J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-30 Xinwen Dong, Shuhan Zhuang, Yuhan Xu, Hao Hu, Xinpeng Li, Sheng Fang
Release rate estimation is a vital means of revealing the emission process of radionuclides and assessing the environmental consequences in an emergency. Inverse modeling is widely used in emergency cases, but is vulnerable to plume biases in atmospheric dispersion modeling. One promising solution is a model called “Simultaneously Estimates the Release rate And Corrects both the plume range and Transport
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Radionuclide measurements of the international monitoring system J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-29 Matthew A. Goodwin, Ashley V. Davies, Richard Britton, Harry S. Miley, Paul W. Eslinger, Ian Hoffman, Kurt Ungar, Pawel Mekarski, Adrian Botti
The International Monitoring System (IMS) is a unique global network of sensors, tuned to measure various phenomenology, with the common goal of detecting a nuclear explosion anywhere in the world. One component of this network collects measurements of radioactive particulates and gases (collectively known as radionuclides) present in the atmosphere; through this, compliance with the Comprehensive
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Streptomyces rock phosphate ore biomining evaluation in vitro J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-27 Gamal M. Abdelhamid, Rofida S. Abdelkader, Susan E. Weesa
The process of extracting metals from rock phosphate ore (RPO) by using microorganisms to convert them into soluble compounds is called biomining. Phosphorus is one of the elements proposed to be extracted from RPO. To understand the role of Streptomyces phospholyticus, 12 isolates of Streptomyces were isolated from RPO, their ability to grow on specific phosphate solubilization medium e.g., National
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Development and validation of a Medaka fish voxel-based model for internal ionizing radiation dosimetry J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-25 Jaafar EL Bakkali, Abderrahim Doudouh, Tarek EL Bardouni, Tarik EL Ghalbzouri, Hafssa Bendriss, Soufiyan Yachou
In this paper, we present a voxel-based phantom of Medaka fish that can be used to assess the internal radiation doses that would be absorbed by different organs of this fish species if exposed to radioactive wastewater released into the ocean. The geometric model for fish was generated based on available Wavefront Object files for smooth-bodied Medaka fish organs, whereas due to the lack of Medaka
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The fifth International Conference on Radioecology and Environmental Radioactivity, 2022 (ICRER-2022) J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-23 Justin Brown, Jelena Mrdakovic Popic, Carol Robinson, Karen Smith
Abstract not available
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Statistical approach for radioactivity detection: A brief review J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-23 Hanan Arahmane, Jonathan Dumazert, Eric Barat, Thomas Dautremer, Frédérick Carrel, Nicolas Dufour, Maugan Michel
Radioactivity detection is a major research and development priority for many practical applications. Amongst the various technical challenges in this field is the need to carry out accurate low-level radioactivity measurements in the presence of a large fluctuations in the natural radiation background, while reducing the false alarm rates. The task becomes even more harder with high detection limits
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The bioreduction of U(VI) and Pu(IV): Experimental and thermodynamic studies J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-18 Jinchuan Xie, Dongyan Li, Yu Wang
The experimental and thermodynamic bioreduction of U(VI)aq and Pu(IV)am was studied in order to more accurately predict their transport velocities in groundwater and assess the contamination risks to the associated environments. The results obtained in this study emphasize the impact of carbonate-calcium and humic acids at 7.1 and anoxic solutions on the rate and extent of U(VI)aq and Pu(IV)am bioreduction
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Measuring societal attitudes and behaviours towards radon indoors: A case study of Slovenia J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-14 Tanja Perko, Peter Thijssen, David Hevey, Catrinel Turcanu, Melisa Muric
Public opinion surveys play a crucial role in assessing public awareness, knowledge, and radon risk perception in the context of national Radon Action Plans. However, many of these surveys are constructed without a solid foundation in behavioural theories, health protection theory, or social science methodology. This lack of foundation can lead to misguided priorities in radon mitigation interventions
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Particulate matter from water moss of a large Siberian river: Morphometric, mineral, elemental and radionuclide composition J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-12 Tatiana A. Zotina, Vladislav V. Sukhorukov, Anatoly M. Zhyzhaev, Yuliyana V. Alexandrova, Anton D. Karpov, Mikhail S. Melgunov, Leonid V. Miroshnichenko
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The mechanism and behavior of cesium adsorption from aqueous solutions onto carbonated cement slurry powder J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-10 Tao Hong, Yuelong Pan, Yu Liu, Gang Yang, Yangchun Leng
In this study, microstructural differences and changes in the adsorption capacity of cesium between cement and carbonated cement were investigated. Cement blocks were ground to powder for rapid carbonation, and microscopic variations were characterized by XRF, XRD, FT-IR, SEM, BET, and TGA. The characterization results show that the conversion of Ca(OH)2 and calcium silicate hydrate (C–S–H) gel to
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Examining the potential for detecting simultaneous noble gas and aerosol samples in the international monitoring system radionuclide network J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-06 Paul W. Eslinger, Jonathan L. Burnett, Justin D. Lowrey, Brian D. Milbrath, Ramesh Sarathi
The purpose of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) is to establish a legally binding ban on nuclear weapon test explosions or any other nuclear explosions. The Preparatory Commission for the CTBT Organization (CTBTO PrepCom) is developing the International Monitoring System (IMS) that includes a global network of 80 stations to monitor for airborne radionuclides upon entry into force of
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Steep declines in radioactive caesium after 30 years of monitoring alpine plants in mountain areas of central Norway J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-07 Lise Tingstad, Brett Sandercock, Signe Nybø
The Chernobyl accident exposed large areas of northern Europe to radiocaesium (137Cs). We investigated temporal and spatial variation in concentrations of radiocaesium among five functional groups of alpine plants at two mountain areas in central Norway over a 31-year period from 1991 to 2022. Average concentrations of radiocaesium were initially high in lichens and bryophytes at around 4600–6400 Bq/kg
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Differentiation between chemo- and radiotoxicity of 137Cs and 60Co on Lemna minor J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-07 Isabelle Van Dyck, Nathalie Vanhoudt, Jordi Vives i Batlle, Clarita Saldarriaga Vargas, Nele Horemans, Axel Van Gompel, Robin Nauts, Ann Wijgaerts, Wouter Marchal, Jürgen Claesen, Jaco Vangronsveld
The uptake and effects of stable Cs and Co on L. minor were extensively studied, together with the effects of gamma radiation using a 137Cs or 60Co source. Innovative is that we combined external irradiation (from 137Cs or 60Co sources) with the direct uptake of certain amounts of stable Cs or Co to simulate the impact of the same mass of a radioisotope compared with that of the stable element. Such
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Radon exhalation behavior and determination of diffusion migration parameters in spherical porous emanation media J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-07 Yongjun Ye, Mengge Chen, Guangling Chen, Ming Xia, Ting Yu, Haofeng Wang
There is a significant impact of the radon diffusion coefficient and the free radon production rate on the exhalation of radon from porous materials that can be regarded as spheres, hexahedrons, or cylinders. To understand this effect, the radon exhalation rules of spherical porous media with different radii were studied according to the radon diffusion migration theory. A specialized method for simultaneous
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Characterization relationship between multinuclide nonequilibrium gamma radiation dose rate and 226Ra activity concentration in contaminated soil around uranium mines J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-05 Dong Ji, Xiaochao Liu, Xuebin Su
According to the characteristics of contaminated soil around uranium mines, combined with the pollution path of soil, the response relationship between the gamma radiation dose rate and radium activity concentration in contaminated soil was proposed by using a numerical model and subequilibrium theory. The results showed that the topsoil (depth 20 cm) made the mainly contribution of gamma dose rate
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Optimization of radioprotective dose of Juglans nigra leaf extract using response surface methodology J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-02 Katarina M. Rajković, Mirjana Đurašević, Milan Markićević, Zorana Milanović, Sanja Vranješ-Đurić, Drina Janković, Dragana Stanković, Zorica Obradović
J. nigra leaf contains mixture of various pharmacologically active compounds and it is assumed that they may have the potential radioprotective effect. The purpose of this work was to predict radioprotective doses by correlating changes in organ distribution of radiopharmaceuticals with extract dose levels and rat body weight using response surface methodology (RSM) based on a second-order polynomial
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Review of natural radioactivity in tobacco cigarette brands J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-02 Anastazia Tarimo Felix, Amos Vincent Ntarisa
Cigarettes smoking are leading causes of lung cancer in the world. In several countries, the radioactivity of tobaccos cigarette brands has been evaluated to estimate the effective dose from smoking inhalation. In this paper, we have reviewed 40 researched papers of radioactivity in tobacco cigarette brands by searching specified databases from various search engines such as Web of Science, Google
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Comparative studies on radon seasonal variations in various undeground environments: Cases of abandoned Beshtaugorskiy uranium mine and Kungur Ice Cave J. Environ. Radioact. (IF 2.3) Pub Date : 2023-12-02 Petr S. Miklyaev, Tatiana B. Petrova, Nikolay G. Maksimovich, Alexey V. Krasikov, Aleksey V. Klimshin, Dmitriy V. Shchitov, Pavel A. Sidyakin, Dmitriy N. Tsebro, Olga Yu. Meshcheriakova
It is well known that one of the most important risk factors in underground environment is the harmful effects of radon. The reasons for strong seasonal fluctuations in radon content in underground environments remain not fully understood. The purpose of this article is to improve existing ideas about this phenomenon. The article presents the results of a study of radon transport in two different underground
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Sorption behaviour of neptunium in marine and fresh water bottom sediments in Far East area of Russia (Lake Khanka and Amur Bay) J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-27 A.O. Zheleznova, J. Sun, S.D. Zhu, N.V. Kuzmenkova, A.K. Rozhkova, V.G. Petrov, S. Xing, K. Shi, X. Hou, S.N. Kalmykov
The concentration and sorption behavior of 237Np on the bottom sediments of water bodies in the Far East region of Russia (Lake Khanka and Peter the Great Bay) were studied for the first time. The 237Np concentrations vary from 1.06 × 10−6 to 4.43 × 10−5 mBq g−1 in the bottom sediments of Lake Khanka and from 1.05 × 10−4 to 2.52 × 10−3 mBq g−1 for Amur Bay. The experiment on the adsorption of Np on
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Decontaminating liquid-containing Cs-137 by natural Pumice stone J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-27 Mezher Abed Gatea, Ghufran Farooq Jumaah, Riyad Hassan Al anbari, Qusay F. Alsalhy
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Relationship between Ra-226 activity concentration in building materials and indoor radon concentration: An example of Russian high-rise residential buildings J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-26 I.V. Yarmoshenko, G.P. Malinovsky, M.V. Zhukovsky, V.S. Izgagin, A.D. Onishchenko, A.V. Vasilyev
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Important role of turbulence on the distribution of particle radioactivity in the nuclear explosions J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-27 feifei Li, wei Liu
The distribution of particle radioactivity is one of the most important source items of radioactive fallout prediction model for nuclear explosion. For radioactive particles with the diameter larger than 0.5 μm, the influence of turbulent coagulation cannot be ignored. However, few scholars have considered the role of turbulence in the study of the distribution of particle radioactivity. The General
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Influence of temperature on the radon concentration distribution in ramp under low-speed wind field: A numerical simulation study J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-25 Hong Wang, Bingbing Xie, Yuhang Wang, Jiale Wen, Changshou Hong
By introducing the parameters of radon exhalation rate and radon diffusion coefficient, the distribution of radon concentration field on ramp under the condition of superposition of temperature field and flow field is simulated. The simulation results show that the distribution of radon concentration in the ramp under the condition of low-speed ventilation is greatly affected by the temperature field
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Application of portable liquid scintillation counter for on-field measurement of tritium in aqueous samples during radiation emergency J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-24 Priyanka J. Reddy, Rajesh Sankhla, Probal Chaudhury
Screening of aqueous samples for 3H contamination is required to decide suitability of water intended for human consumption during radiation emergency. BARC, Trombay has recently procured Portable Triathler liquid scintillation counter as a screening tool for on-site response to radiation emergency. For this purpose, parameters like, different available scintillators, scintillator to sample ratio and
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Use of tritium in characterizing the leachate migration from a landfill – Central de tratamento de resíduos sólidos (CTRS) BR040 (Belo Horizonte, Minas Gerais, Brazil) J. Environ. Radioact. (IF 2.3) Pub Date : 2023-11-21 Rafael Campos de Oliveira, Carlos Alberto de Carvalho Filho, Rubens Martins Moreira, Eliana Nonato Knupp
Landfills often become a source of environmental impact due to the percolation of the leachate (liquid resulting from the decomposition of buried waste), which can eventually disperse and contaminate the soil and water bodies. This study aimed to evaluate quantitatively and spatially the leachate plume from the former Belo Horizonte landfill in the Coqueiros and Taiobas watersheds by using tritium