Journal of environmental radioactivity最新文献

{"title":"Measurements of the natural background of radioxenon isotopes in soil gas","authors":"M. Aldener,&nbsp;K. Elmgren,&nbsp;T. Fritioff,&nbsp;H. Olsson,&nbsp;L. Karlkvist,&nbsp;J. Kastlander,&nbsp;C. Söderström","doi":"10.1016/j.jenvrad.2025.107711","DOIUrl":"10.1016/j.jenvrad.2025.107711","url":null,"abstract":"<div><div>Radioisotopes of xenon are used as indicators for an underground nuclear explosion (UNE), and it is essential to be able to distinguish a potential signal from an UNE from the natural background, i.e. from spontaneous fission of uranium. The natural occurring background of radioxenon isotopes have been studied in Sweden in three separate campaigns in the period 2019–2022. In total more than 100 samples were collected and analysed for radioxenon and especially ¹³³Xe was detected in most of the samples. This gives a good data set for understanding of the natural background of xenon in the soil. The extended sampling was performed with the goal to study any potential trend with different weather conditions, e.g. ambient pressure and rainfall, and during different seasons. The sampling method and logistics were optimized over the years to improve the sensitivity of the most short-lived isotope in this study, ¹³⁵Xe. One method was to shorten the time between collection and measurement which lead to the first detections of ¹³⁵Xe in the natural background of soil gas.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"287 ","pages":"Article 107711"},"PeriodicalIF":1.9,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of radon risk awareness among undergraduate students at Mkwawa University College of Education, Tanzania","authors":"Karim Haji Shabani ,&nbsp;Rosemary Martin Sesala ,&nbsp;Masanja Kashindye Andrea ,&nbsp;Amos Vincent Ntarisa ,&nbsp;Chakupewa Joseph Mpambije","doi":"10.1016/j.jenvrad.2025.107712","DOIUrl":"10.1016/j.jenvrad.2025.107712","url":null,"abstract":"<div><div>Radon is a by-product of decayed uranium and thorium isotopes, which are naturally occurring radionuclide with extremely long half-lives. It is rated as the second cause of lung cancer after tobacco cigarette smoking. This study assesses knowledge and awareness of health risks associated with radon among undergraduate students at Mkwawa University College of Education (MUCE) by using questionnaires. A structured questionnaire with 36 items was administered to 403 respondents at MUCE. Information was collected on the demographic variables of the respondents as well as knowledge and awareness of health risks associated with radon among undergraduates at MUCE. Data were analysed by using descriptive statistics. Respondents included 204 (50.6 %) females and 199 (49.4 %) males. Findings revealed that 257 (63.8 %) of the respondents had no knowledge of radon gas and had not even heard about it before this study, while only 146 (36.2 %) of the respondents had heard about radon gas. Moreover, 285 (70.7 %) of the respondents were not aware that radon gas can cause health effect, and only 118 (29.3 %) of the respondents were aware about health effect of radon gas. Likewise, only 145 (36 %) of the respondents were aware about the risks of radon gas, while 258 (64 %) of the respondents were not aware about the risk of radon as the second cause of lung cancer after tobacco smoking. This study suggests the need to increase public education and awareness campaigns on radon and its associated risks.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"287 ","pages":"Article 107712"},"PeriodicalIF":1.9,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143901873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uptake and elimination of 137Cs in aquatic biota inhabiting a contaminated effluent canal","authors":"Kathryn A. Quinlin ,&nbsp;Danielle Hill ,&nbsp;Xiaoyu Xu ,&nbsp;James C. Beasley","doi":"10.1016/j.jenvrad.2025.107697","DOIUrl":"10.1016/j.jenvrad.2025.107697","url":null,"abstract":"<div><div>Radiocesium (¹³⁷Cs) is among the most prevalent and concerning radionuclide released from anthropogenic activities due to its relatively slow decay time and high bioavailability. Numerous studies have reported activity concentrations of ¹³⁷Cs in exposed biota, but few have assessed detailed toxicokinetics. The objective of our study was to quantify and compare the uptake and elimination of ¹³⁷Cs in aquatic taxa from multiple classes with different ecological roles inhabiting a canal contaminated from nuclear production activities on the Savannah River Site in South Carolina, USA. We tracked accumulation and elimination of ¹³⁷Cs in four understudied aquatic species: one aquatic macrophyte [American white water lily (<em>Nymphae odorata</em>)<em>,</em> two benthic associated omnivorous species (American bullfrog (<em>Lithobates catesbeianus</em>) and red swamp crayfish (<em>Procambarus clarkii</em>)<em>,</em> and one pelagic carnivorous fish (Eastern mosquitofish (<em>Gambusia holbrooki</em>)]. We monitored accumulation of ¹³⁷Cs from initial exposure until equilibrium for biota restricted within the canal and subsequently tracked elimination of ¹³⁷Cs over time by moving organisms from the canal to a nearby reference pond. Results indicated bullfrog tadpoles reached 95 % equilibrium in approximately 9 days, the fastest among the species evaluated. After bullfrog tadpoles, the next fastest time to equilibrium was achieved by red swamp crayfish (51 days) followed by mosquitofish (86 days). At equilibrium, bullfrog tadpoles were found to have similar ¹³⁷Cs activity concentrations to mosquitofish (3.16 and 3.57 Bq/g, respectively), and both were significantly higher than red swamp crayfish (1.77 Bq/g). For elimination, we found biological half-lives to range between 8 and 43 days with bullfrog tadpoles eliminating ¹³⁷Cs the fastest followed by water lilies, mosquitofish, and red swamp crayfish. Overall, we found the uptake and elimination of ¹³⁷Cs to vary widely among our studied species, but benthic organisms are not at an increased risk to accumulate ¹³⁷Cs compared to organisms in less frequent contact with the sediment.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"287 ","pages":"Article 107697"},"PeriodicalIF":1.9,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prediction of anthropogenic 129I in the South China Sea based on machine learning","authors":"Jinxiao Hou ,&nbsp;Tong Zhang ,&nbsp;Yanyun Wang ,&nbsp;Haitao Zhang ,&nbsp;Xiaolin Hou","doi":"10.1016/j.jenvrad.2025.107710","DOIUrl":"10.1016/j.jenvrad.2025.107710","url":null,"abstract":"<div><div>With the rapid increase in the number of nuclear power plants along the China coast and the potential for releases of radioactive substances to marine ecosystems, it is important to investigate and predict the dispersion of radionuclides in the seas and assess their radiological risks. Due to iodine's high solubility in water, and the high fission yield and long half life of ¹²⁹I, it has been widely used for investigation of anthropogenic radioactive pollution dispersion in the marine environment. This work established a method to predict the dispersion of anthropogenic ¹²⁹I in the seas by machine learning. Two models: 1) a Random Forest model, and 2) a Support Vector Machine model, which were developed using measured ¹²⁹I and ¹²⁷I values from seawater in the northwestern South China Sea. Spearman analysis was employed to investigate the influence of various environmental parameters on ¹²⁹I levels, with water depth, temperature, and salinity identified as the main parameters affecting ¹²⁹I levels. The sensitivity of machine learning model outputs to different environmental parameters was determined; with salinity being the most significant parameter. Both models demonstrated good prediction performance as seen in comparisons of predicted data with measurement values (R² &gt; 0.83). Based on a comprehensive evaluation of model metrics, the Random Forest model slightly outperformed the Support Vector Machine model. The model can be easily applied to predict the dispersion of soluble anthropogenic radionuclide in marginal seas, providing an effectively technical support for radiological risk assessment and emergency responses of nuclear pollution and accidents.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"287 ","pages":"Article 107710"},"PeriodicalIF":1.9,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143899871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Which radionuclides contribute most to seafood ingestion dose?","authors":"Mathew P. Johansen ,&nbsp;Justin P. Gwynn ,&nbsp;Julia G. Carpenter ,&nbsp;Sabine Charmasson ,&nbsp;Airi Mori ,&nbsp;Blake Orr ,&nbsp;Marie Simon-Cornu ,&nbsp;Iolanda Osvath ,&nbsp;Paul Mc Ginnity","doi":"10.1016/j.jenvrad.2025.107706","DOIUrl":"10.1016/j.jenvrad.2025.107706","url":null,"abstract":"<div><div>Radiological ingestion doses from eating seafood are regularly evaluated near coastal nuclear facilities, following accidents/events and frequently in national studies worldwide. However, a recent global review found that published seafood doses varied greatly depending on which radionuclides were selected for evaluation and that there has been a tendency to omit important radionuclides or focus on less significant ones. This indicates a need for clear guidance on which radionuclides to prioritise in such studies. Here, we use worldwide data for 16 key radionuclides contributing to typical background seafood ingestion dose. We account for the loss of radionuclides during cooking and the radioactive decay of the short-lived ²¹⁰Po.</div><div>Results indicate that for the typical world consumer, naturally-occurring radionuclides account for &gt;99 % of the total seafood ingestion dose, of which about 84 % comes from ²¹⁰Po and 8 % from ²¹⁰Pb. About 5 % comes from ²²⁸Ra, a far greater proportion than the more frequently-assessed ²²⁶Ra (&lt;1 %). Other Th- and U-series radionuclides provide far lower contributions (0.07 %–0.70 %), while ¹⁴C provides about 0.09 %. In comparison, the contribution to total seafood ingestion dose from background anthropogenic radionuclides is &lt;1 %, with ¹³⁷Cs contributing most (0.08 %) and ⁹⁰Sr, ⁹⁹Tc, ^110mAg and ²³⁹Pu adding a further 0.05 % together. These percentage contributions to dose can vary somewhat depending on consumption patterns (e.g., differing proportions of fish, bivalves, etc.). However, ²¹⁰Po is the dominant contributor irrespective of country-specific diets or restricted diet scenarios (fish-only, seaweed-only, etc.). Study results provide new guidance to improve the design, interpretation and communication of seafood ingestion dose assessments.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"287 ","pages":"Article 107706"},"PeriodicalIF":1.9,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A new methodology for the evaluation of radon diffusion coefficients in anti-radon membranes","authors":"Manuela Portaro ,&nbsp;Ilaria Rocchetti ,&nbsp;Gianfranco Galli ,&nbsp;Paola Tuccimei ,&nbsp;Michele Soligo ,&nbsp;Cristina Longoni ,&nbsp;Dino Vasquez","doi":"10.1016/j.jenvrad.2025.107708","DOIUrl":"10.1016/j.jenvrad.2025.107708","url":null,"abstract":"<div><div>Indoor radon is classified as a carcinogen because it can lead to lung cancer. Some radon preventive strategies are related to building protection with radon barrier materials whose capacity to stop the gas depends on the diffusion coefficient, which can be calculated using different techniques. In this article, we propose a new experimental device, called TESTMAT, to measure the radon diffusion coefficient, using a weak radon source, to prevent radiation protection oversight. The device is small and made from PVC. The sample of the tested material is placed between the source and the receiver containers, as indicated by ISO/TS 11665-13 standard. Since a non-stationary radon diffusion occurs in the system, we developed a specific software, ENDORSE, to model radon activity concentrations in the receiver chamber and the diffusion through the material by applying the explicit finite difference method. The software utilizes Montecarlo simulation to determine the error associated with the diffusion coefficient. Different tests were performed to calibrate the system and assess the value and the evolution of background radon during the two-week measurement. When working with low-activity radon sources, this parameter cannot be neglected, particularly with the best performing membranes. An adequate sample holder was selected to guarantee a good airtightness, with a leakage constant of only 7 % of the radon decay constant. The minimum detection limits were calculated based on the material thickness and the source intensity. The system was finally tested with three commercially available waterproofing membranes and results compared with expected values, based on literature.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"287 ","pages":"Article 107708"},"PeriodicalIF":1.9,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A protocol for the radiological assessment for agricultural use of land in Ukraine abandoned after the Chornobyl accident","authors":"J.T. Smith ,&nbsp;S.E. Levchuk ,&nbsp;D.A. Bugai ,&nbsp;N.A. Beresford ,&nbsp;M.D. Wood ,&nbsp;Khomutinin Yu ,&nbsp;G.V. Laptev ,&nbsp;V.A. Kashparov","doi":"10.1016/j.jenvrad.2025.107698","DOIUrl":"10.1016/j.jenvrad.2025.107698","url":null,"abstract":"<div><div>There is a need in Ukraine for re-evaluation of the status of lands outside the Chornobyl Exclusion Zone which were abandoned in the years after the accident. Since the 1991 criteria for zoning were put in place, there has been no re-classification of abandoned lands even though radionuclide contamination density and, for radiocaesium isotopes, mobility have both declined. This study describes the development of a protocol for assessment of abandoned lands in Ukraine based on a 100 ha experimental plot. A simple method of quantification of ¹³⁷Cs contamination density was developed using external dose measurement whilst other relevant radionuclides (⁹⁰Sr; ²⁴¹Am and Pu isotopes) were quantified using selected soil samples. Modelling of uptake of radionuclides in eight key crops shows that the study field could be re-used for agriculture according to Ukrainian regulatory limits. Monte Carlo modelling of potential dose to farm workers showed that dose was dominated by external exposure and that doses were significantly below 1 mSv y⁻¹. Based on statistical analysis of soil-plant concentrations ratios, criteria were derived for assessment of suitability of agricultural land for production. The criteria are applicable to areas of soddy-podzolic sandy and sandy loam soils (Podzoluvisol) typical in these regions of Northern Ukraine. They are not applicable to high organic matter soils (Histosols) where soil-plant concentration ratios are likely to be much higher for radiocaesium.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"286 ","pages":"Article 107698"},"PeriodicalIF":1.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143906650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“Fusion of Horizons”: Part III. Rethinking radon Risk: Scientific advances and regulatory implications (since 1990s)","authors":"Robert Bobkier ,&nbsp;Konstantin Kovler ,&nbsp;Andrey Tsapalov ,&nbsp;Ewa Katarzyna Czech","doi":"10.1016/j.jenvrad.2025.107707","DOIUrl":"10.1016/j.jenvrad.2025.107707","url":null,"abstract":"<div><div>This study examines the global evolution of scientific understanding regarding radon exposure and its health implications, focusing on the transition from early occupational exposure limits and epidemiological risk assessments to molecular-level attributions of radon-induced diseases. Since the early 1990s, advancements in genetic and molecular research have provided growing evidence suggesting that radon exposure may leave a distinct oncological signature, potentially allowing for more precise differentiation between radon-induced lung cancers and those caused by other factors. While this field continues to evolve, its implications extend beyond epidemiological risk assessment to include legal, medical, and regulatory frameworks. Beyond lung cancer, contemporary research has explored links between radon exposure and a range of other oncological and non-oncological diseases, including leukemia, kidney cancer, neurodegenerative disorders, and chronic respiratory conditions. The study further explores the ethical and legal consequences of these findings, particularly in the context of risk governance, compensation claims, and occupational health regulations. The paper also examines the hybrid nature of radon as both naturally occurring and anthropogenically intensified hazard, complicating risk perception and public policy responses. Additionally, the phenomenon of “contaminated communities,” is discussed, wherein prolonged radon exposure disrupts social structures and contributes to psychological distress, economic losses, and legal disputes. By analyzing radon exposure through the lens of toxic disaster theory, this study outlines the sequential stages of public and regulatory responses, from initial scientific uncertainty to regulatory intervention and societal adaptation. The findings highlight a broader challenge in environmental health governance: how scientific advancements are integrated into public health policies amid economic and political constraints. Ultimately, the study underscores the need for continuous scientific inquiry and proactive policymaking to address the full spectrum of health risks associated with radon exposure.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"286 ","pages":"Article 107707"},"PeriodicalIF":1.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143882678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatially resolved isotope analysis of a Chernobyl corium fragment extracted from environmental soil","authors":"Wolfgang Schulz,&nbsp;Martin Weiss,&nbsp;Manuel Raiwa,&nbsp;Clemens Walther,&nbsp;Laura Leifermann","doi":"10.1016/j.jenvrad.2025.107699","DOIUrl":"10.1016/j.jenvrad.2025.107699","url":null,"abstract":"<div><div>Micrometer sized particles accounted for a considerable fraction of the radioactivity released into the environment during the Chernobyl accident. In addition, there is a special kind of particles, so called shelter-derived fuel containing material (FCM), that formed as a consequence of the cooling of the reactor melt, and was so far only found inside the reactor building. For the first time, a FCM particle was located in and extracted from soil of a former agricultural field 5 km south-southeast of the former nuclear power plant. Using a combination of energy scanning electron microcopy and dispersive x-ray analysis and Secondary Neutral Mass Spectrometry we found that the particle is comprised of a silicon matrix containing evenly distributed amounts of U, Pu and Am. Embedded in that chemically stable matrix are small inclusions of reactor U of varying chemical composition. We could show this particle type to be largely unaffected by weathering under environmental conditions.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"286 ","pages":"Article 107699"},"PeriodicalIF":1.9,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soil to plant transfer factor of 137Cs, 40K, and stable Cs in a semi-arid region","authors":"Abdullah Dirican,&nbsp;Hasan Dikmen,&nbsp;Eren Çantay","doi":"10.1016/j.jenvrad.2025.107700","DOIUrl":"10.1016/j.jenvrad.2025.107700","url":null,"abstract":"<div><div>Radionuclide transport from soil to plants is important for radiological contamination of food and estimation of internal radiation doses from consuming contaminated food. Wheat, clover, purslane and soil samples were collected from agricultural fields in the semi-arid region of Iğdır, Türkiye. The concentrations of ¹³⁷Cs, ⁴⁰K, and stable Cs were measured and soil-to-plant transfer factors were calculated. The concentrations of ¹³⁷Cs (derived from global fallout deposition), ⁴⁰K and stable Cs in soils ranged from 1.9 to 8.4 Bq kg⁻¹, 318–2033 Bq kg⁻¹ and 1.6–18.5 mg kg⁻¹ respectively. The geometric mean concentrations of ¹³⁷Cs, ⁴⁰K and stable Cs in wheat grain were measured as 8.4 Bq kg⁻¹ dry wt., 417 Bq kg⁻¹ dry wt. and 3.6 mg kg⁻¹ dry wt. respectively. Geometric mean value of the soil to stem of cereal (wheat), grass (clover) and leafy vegetable (purslane) transfer factor (F_ν) for ¹³⁷Cs were estimated as 5.7 x 10⁻², 2.8 x 10⁻² and 9.2 x 10⁻² which were higher than values reported in IAEA-TRS 472 except grain of wheat which was approximately equal to that of temperate climate values 1.1 x 10⁻¹. The F_ν values of stable Cs were estimated somewhat lower than that of F_ν of ¹³⁷Cs for wheat grain, wheat stems, clover and purslane.</div></div>","PeriodicalId":15667,"journal":{"name":"Journal of environmental radioactivity","volume":"286 ","pages":"Article 107700"},"PeriodicalIF":1.9,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}