Journal of Radiological Protection最新文献

{"title":"Pediatric chest radiography in Fukushima prefecture: a multicentre organ dose assessment and optimization analysis.","authors":"Yoshiaki Hirofuji, Hazuki Manome, Koyo Sugai, Momoka Abe, Takaomi Harada","doi":"10.1088/1361-6498/ae5f27","DOIUrl":"10.1088/1361-6498/ae5f27","url":null,"abstract":"<p><p>Pediatric patients are highly radiosensitive, and technical variation in chest radiography can substantially affect dose. Fukushima prefecture also faces persistent post-disaster radiation concerns and declining pediatric imaging experience due to demographic change. A 5 year-old anthropomorphic phantom with 50 radiophotoluminescent dosimeters was examined at 22 facilities. Organ absorbed doses and entrance surface air kerma (ESAK) were directly measured, and effective dose was calculated using International Commission on Radiological Protection Publication 103 tissue weighting factors. One statistical outlier identified by Tukey's extreme outlier criterion was excluded from outlier-excluded analyses. Across 22 facilities, ESAK ranged from 0.03 to 1.25 mGy (median 0.12 mGy) and effective dose from 3.4 to 180.1<i>μ</i>Sv (median 27.3<i>μ</i>Sv). After exclusion of one outlier, ESAK ranged from 0.03 to 0.26 mGy (median 0.12 mGy; 9-fold variation) and effective dose from 3.4 to 94.2<i>μ</i>Sv (median 27.2<i>μ</i>Sv; 28-fold variation). The 75th-percentile ESAK was 0.137 mGy, 2.5% below Japan diagnostic reference levels 2025 (0.14 mGy), although 5 of 21 facilities (23.8%) exceeded this level. Median effective dose was 1.4-fold higher than the international reference value (20<i>μ</i>Sv). Compared with posterior-anterior (PA) projection, anterior-posterior projection showed higher breast dose (151.8 ± 74.3 vs 18.6 ± 10.7<i>μ</i>Gy;<i>p</i>= 0.0011) and higher effective dose (55.9 ± 29.6 vs 21.7 ± 11.5<i>μ</i>Sv;<i>p</i>= 0.0059); the stomach dose difference was exploratory (<i>p</i>= 0.025), whereas the thyroid dose difference was not statistically significant (<i>p</i>= 0.050). Tube current-time product correlated positively with effective dose (<i>r</i>= 0.67,<i>p</i>< 0.001). Marked inter-facility variation indicates substantial opportunities for optimization through greater use of PA projection, appropriate source-to-image receptor distance extension, and careful mAs adjustment. In post-disaster regions with declining pediatric imaging experience, radiation protection may require integrated technical, educational, and societal support.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147677312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Tooth enamel dose coefficients of the ICRP adult mesh-type reference computational phantoms for idealized external neutron exposures.","authors":"Bangho Shin, Chansoo Choi, Robert J Dawson, Chan Hyeong Kim, Wesley E Bolch","doi":"10.1088/1361-6498/ae6080","DOIUrl":"10.1088/1361-6498/ae6080","url":null,"abstract":"<p><p>For application in electron paramagnetic resonance (EPR) dosimetry for neutron fields, the present study establishes a dataset of tooth enamel dose coefficients (DCs) for idealized external neutron exposures using the adult mesh-type reference computational phantoms of the international commission on radiological protection. PHITS Monte Carlo neutron transport simulations were performed to compute DCs for buccal and lingual enamels for the front, front-left, front-right, left, and right teeth for 68 monoenergetic neutrons under antero-posterior (AP), postero-anterior (PA), left-lateral, right-lateral, rotational, and isotropic (ISO) irradiation geometries. The dose contributions from primary neutrons and secondary photons were quantified to account for the respective sensitivities of enamel to neutrons and photons in EPR measurements. The results demonstrated meaningful variation in enamel DCs with irradiation geometry; for example, up to a 5.6-fold difference was observed between the AP and PA geometries for the front lingual enamel. In addition, the results showed that for neutron energies below 20 MeV, secondary photons contributed more than 10% to the total dose, emphasizing the need for separate consideration of primary neutrons and secondary photons when interpreting EPR signals. The neutron enamel DCs established in the present study, in combination with the previously derived photon enamel DCs, will enable improved estimation of individual radiation doses, including organ and effective doses, for realistic mixed neutron-photon exposure scenarios.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147700660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Specific Absorbed Fractions for Detailed Fetal Organs from Maternal Electron Sources Using Gestation-Specific Pregnant Phantoms.","authors":"Tae-Eun Kwon, Cari M Kitahara, Choonsik Lee","doi":"10.1088/1361-6498/ae6869","DOIUrl":"https://doi.org/10.1088/1361-6498/ae6869","url":null,"abstract":"<p><p>Accurate estimation of fetal dose from maternal intake of beta-emitting radionuclides (e.g., 131I, 177Lu, 137Cs) is essential for protecting the developing fetus and assessing its radiological risks. This study developed a comprehensive dataset of electron specific absorbed fractions (SAFs) from maternal source regions to detailed fetal target organs using the series of anatomically realistic hybrid pregnant female and fetus phantoms representing eight gestational stages (8-38 weeks). Monte Carlo radiation transport simulations were performed to compute electron SAFs for 70 maternal source regions and 55 fetal target organs across 20 energies (10 keV-10 MeV). The results revealed a strong dependence of fetal SAFs on maternal-fetal geometry, with adjacent maternal organs (e.g., amniotic fluid, urinary bladder wall) producing markedly higher SAFs than distant sources. Organ-specific analyses showed large variability among fetal targets, particularly for electrons, underscoring the need for organ-level rather than total-body dose estimation. Comparisons with previous datasets based on simplified phantoms demonstrated that anatomical realism and gestation-specific modeling substantially influence dose transfer predictions. The electron SAF dataset presented here, developed with high anatomical and energy resolution, provides an essential foundation for improving fetal internal dosimetry and supporting radiological protection decisions in medical, environmental, and emergency exposure scenarios.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147845301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Preparedness for small modular reactors: an analysis of key actors in Sweden.","authors":"Åsa Thelander, Åsa Ek, Henrik Rahm","doi":"10.1088/1361-6498/ae5dd7","DOIUrl":"10.1088/1361-6498/ae5dd7","url":null,"abstract":"<p><p>Small modular reactors (SMRs) are increasingly promoted as part of future fossil-free energy systems, yet they may introduce new types of risks and involve a broader set of actors compared to conventional nuclear power plants. The study examines how key actors in Sweden understand SMRs and interpret their roles in radiation emergency preparedness. This qualitative study is based on qualitative interviews with actors involved in emergency preparedness for potential SMR deployment, a context shaped by Sweden's recent policy shift toward expanded nuclear energy. Findings show that expectations of SMRs are generally high, and benefits tend to overshadow considerations of radiation risks. Among newcomer actors, emergency preparedness is widely perceived as an issue that can be addressed later in the SMR development process rather than as an integral part of early strategic planning. Among actors with previous experience of radiation risks, SMRs do not entail any major changes or challenges. As a result, a broad preparedness culture-including early engagement across organisational boundaries and systematic integration of radiation emergency preparedness-is not yet discernible. These gaps warrant continued attention as SMR initiatives advance.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147655485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Study on inductive charging technology of fixative droplets for submicron aerosol control.","authors":"Xin Huang, Hongchao Pang, Chuangao Wang, Chunsheng Cui, Gang Wei, Jinsen Guo, Ran Chen, Zhiping Luo","doi":"10.1088/1361-6498/ae6276","DOIUrl":"10.1088/1361-6498/ae6276","url":null,"abstract":"<p><p>In the event of an accidental fire in a glove box, submicron plutonium aerosols may be released into the plant area, which not only poses an internal exposure hazard to staff but also risks radioactive environmental pollution. Existing studies have shown that fixative droplets can effectively control aerosols and inhibit their resuspension, but there is still room for improvement in the control effect on submicron aerosols. To this end, this study adopts inductive charging technology to charge fixative droplets, and enhances the control effect by means of the Coulomb interaction between droplets and aerosols. Aerosol control experiments are carried out in a glove box system equipped with a charging device and a pneumatic atomisation device to systematically investigate the effects of voltage and electrode-related parameters on the control effect. The experimental results are explained in combination with theoretical analysis and simulation calculations. The results demonstrate that charging fixative droplets can significantly enhance the control efficiency for aerosols in the range of 0.5<i>μ</i>m-1<i>μ</i>m, providing important technical support for reducing the risk of internal exposure of personnel and ensuring environmental safety.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Direct and indirect assessment: comparison of different methods to estimate staff equivalent dose to the lens during different interventional procedures.","authors":"Luca Fedeli, Andrea Magistrelli, Angela Vaiano, Margherita Betti, Laura Redapi, Stefania Fabiani, Francesco Meucci, David Fedele, Sara Bicchi, Zeno Zoppi, Luca Bernardi, Lorenzo Nicola Mazzoni","doi":"10.1088/1361-6498/ae6277","DOIUrl":"10.1088/1361-6498/ae6277","url":null,"abstract":"<p><p>The reduction of the annual equivalent dose limit to the lens of the eye from 150 to 20 mSv has increased the need for reliable assessment of occupational eye lens exposure, particularly in interventional radiology. Lens absorbed dose is commonly evaluated either using a dosimeter near the eye or indirectly using chest dosimeter readings. Although the indirect approach is well established in interventional cardiology, its validity for procedures with different exposure geometries remains uncertain. This study evaluated the agreement between direct and indirect estimates of lens equivalent dose in haemodynamic, electrophysiological and gastroenterological procedures. Forty-one physicians were monitored using thermoluminescent dosimeters placed close to the eye and on the chest above the lead apron. Direct lens doses were compared with indirect estimates derived from chest dosimeter. Agreement was assessed using linear fitting, Pearson's correlation coefficients and analysis of variance. A total of 449 valid dosimetric pairs were analysed. A statistically significant correlation between direct and indirect lens dose estimates was observed for haemodynamic and electrophysiological procedures. The indirect lens dose estimates provided conservative estimates in approximately 80% of cases and never resulted in exceedance of the 20 mSv annual dose limit. In contrast, no significant correlation was found for endoscopic retrograde cholangiopancreatography procedures, where indirect estimates frequently underestimated lens dose due to non-frontal exposure geometry. These findings confirm that reliable and conservative assessment of eye lens dose estimates in interventional cardiology is possible when chest doses are well below regulatory limits. However, caution is required when extending its use to non-cardiac procedures, where procedure-specific exposure conditions may compromise the reliability of lens dose estimates.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Identifying age-specific windows of vulnerability: a lifetime dose assessment of Ra-226 in drinking water.","authors":"Alaaddin Alnajjar, Majd Hawwari","doi":"10.1088/1361-6498/ae5e7f","DOIUrl":"10.1088/1361-6498/ae5e7f","url":null,"abstract":"<p><p>The World Health Organization recommends a reference level of 0.1 mSv y^-1for radiological exposure from drinking water, implemented through an adult-based screening framework that does not explicitly account for age-dependent water intake or radionuclide biokinetics. For bone-seeking radionuclides such as Ra-226, these factors can modify both the temporal distribution and cumulative burden of ingestion dose over the lifespan. In this study, an age-dependent lifetime ingestion-dose model was developed for Ra-226 by combining age-specific drinking-water intake rates with International Commission on Radiological Protection ingestion dose coefficients and time-resolved biokinetic dose functions. Annual and cumulative effective doses were calculated from birth to 70 years and compared with estimates obtained using the adult-only screening approach, assuming a constant drinking-water concentration of 1 Bq l^-1. The cumulative lifetime effective dose reached approximately 20 mSv, corresponding to a lifetime-averaged annual dose of ∼0.29 mSv y^-1, compared with ∼0.20 mSv y^-1derived using the adult-based method. Although the absolute magnitude of Ra-226 ingestion dose is lower than that reported for Ra-228, the age-dependent model revealed a clear early-life dominance. The highest annual dose occurred during the first year of life (∼1.2 mSv y^-1), driven by elevated infant ingestion dose coefficients. Annual dose declined rapidly through early childhood and then approached a near-constant adult value of approximately 0.2 mSv y^-1. In contrast to Ra-228, Ra-226 did not produce a comparable adolescent dose peak, reflecting faster dose saturation following intake and limited long-term contribution from short-lived progeny. These results demonstrate that adult-only screening does not capture the timing and distribution of Ra-226 ingestion dose and that age-dependent lifetime modelling provides a more realistic basis for assessing chronic exposure from drinking water.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147678314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Updated Computational Performance Evaluation of ICRP Mesh-type Reference Computational Phantoms Using PHITS, Geant4, MCNP6.3, and EGSnrc.","authors":"Bangho Shin, Suhyeon Kim, Chansoo Choi, Hyeonil Kim, Yeon Soo Yeom, Junyoung Lee, Reid W Townson, Chan Hyeong Kim","doi":"10.1088/1361-6498/ae670c","DOIUrl":"https://doi.org/10.1088/1361-6498/ae670c","url":null,"abstract":"<p><p>The International Commission on Radiological Protection (ICRP) has adopted mesh-type reference computational phantoms (MRCPs) for the calculation of new reference dose coefficients following the forthcoming general recommendations. In the present study, the computational performance of adult and pediatric MRCPs was systematically evaluated using recently updated Monte Carlo radiation transport codes, including PHITS (version 3.31), Geant4 (version 11.01.p02), MCNP6.3, and EGSnrc (version 2025a). Performance evaluation included initialization time, memory usage, computation time, and multi-threading efficiency for photon, electron, and neutron transport under selected external exposure scenarios. Among the evaluated codes, EGSnrc exhibited the longest initialization time, approximately 8-9 times longer than PHITS. Nevertheless, the absolute time remained within a few minutes. In terms of memory usage, PHITS and EGSnrc required the least memory (<2 GB), whereas Geant4 required the largest memory (approximately 13-14 GB). For computation time, EGSnrc showed the fastest performance for photons and electrons with energies ≤10 MeV, while PHITS demonstrated the shortest computation time for neutrons. MCNP6.3 consistently exhibited longer computation times compared with the other codes. When compared with simulations using the existing ICRP voxel-type reference computational phantoms (VRCPs), PHITS and Geant4 showed comparable or shorter computation times for mesh phantoms. EGSnrc exhibited comparable or shorter computation times for pediatric mesh phantoms, whereas the opposite trend was observed for adult phantoms. In contrast, MCNP6.3 consistently showed longer computation times for the MRCPs than for the VRCPs. Despite its relatively longer absolute computation time, MCNP6.3 demonstrated the best multi-threading performance among the evaluated codes, showing near-linear scaling of computation speed with increasing number of threads. The results of this study provide practical guidance for users in selecting an optimal Monte Carlo code for dose calculations using ICRP mesh-type reference computational phantoms.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147823042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Exposure and impact: Highlights from the second scientific conference and recent activities of the International Society for Radiation Epidemiology and Dosimetry (ISoRED).","authors":"Richard W Harbron, Keith Griffin, Isaf Al-Nabulsi, Pablo Andres, Marie-Odile Bernier, Amy Berrington de González, Catherine Chassin, Christelle En Lin Chua, Cato M Milder, Sergio Morato Rafet, Elisa Pasqual, André Rose, Suman Shrestha, Isabelle Thierry-Chef, Abigail Ukwuani, Lydia Wilson, Evgenia Ostroumova, Matthew M Mille","doi":"10.1088/1361-6498/ae6516","DOIUrl":"https://doi.org/10.1088/1361-6498/ae6516","url":null,"abstract":"<p><p>The International Society for Radiation Epidemiology and Dosimetry (ISoRED) held its second scientific conference on 9-11 September 2025 in Lyon, France, hosted by the International Agency for Research on Cancer. The meeting brought together a multidisciplinary community of researchers to present recent advances in radiation epidemiology, dosimetry, and risk modelling, while fostering international collaboration and supporting early career investigators. The hybrid format enabled broad global participation, with attendees from 16 countries representing academic, governmental, and clinical institutions. This article summarises key scientific, professional, and social highlights of the conference and provides an update on recent activities of the society. The conference programme and a compilation of abstracts are included in the supplementary material.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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":"Risk Perception and Behavioral Intentions in a Nuclear Host Community: Evidence from Wolsong, South Korea.","authors":"KyungHee Kim, Sachchi Baral Chitrakar, KyungSik Kim, Jae Wook Choi, Youjin Hong, Sangjun Lee, Soseul Sung, Woojin Lim, Sue K Park","doi":"10.1088/1361-6498/ae6517","DOIUrl":"https://doi.org/10.1088/1361-6498/ae6517","url":null,"abstract":"<p><p>Public risk perception plays a critical role in shaping social responses to nuclear power plants (NPPs), particularly in host regions experiencing persistent conflict over safety, waste management, and institutional governance. The Wolsong NPP in South Korea represents a unique case, marked by long-standing opposition, policy disputes over spent fuel, and heightened health concern following the detection of radionuclides. Understanding how local residents perceive risk perception of radionuclides and how these perceptions translate into behavioral intentions such as migration, is critical for the Wolsong region. This study examines the demographic, psychological, and institutional determinants of risk perception of radionuclides and migration intentions among 1,342 residents living within a 5 km radius of the plant, using cross-sectional survey data analyzed via two sequential multivariable logistic regression models. Higher risk perception was associated with middle age, high school education, elevated anxiety, and, notably, greater recognition of the social benefits of nuclear power, while institutional trust and perceived policy transparency significantly reduced perceived risk. Migration intentions were reported by 13% of respondents and were more prevalent among younger residents, those with shorter residence duration, elevated stress levels, and higher risk perception. Conversely, institutional trust and perceived transparency substantially reduced migration intentions. These findings demonstrate that, in the context of Wolsong's conflict, risk perception functions as a key mechanism linking psychosocial distress, institutional trust, and population stability. Strengthening transparent governance, institutional credibility, and locally responsive risk communication is essential for improving community resilience in nuclear host regions.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147787638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}