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Risks associated with evacuation and disaster-related death after a radiation disaster: summary of research results from Hamadori region, Fukushima. 辐射灾难后与疏散和灾难相关死亡有关的风险：福岛县滨通地区的研究成果摘要。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae078
Tianchen Zhao, Masaharu Tsubokura
{"title":"Risks associated with evacuation and disaster-related death after a radiation disaster: summary of research results from Hamadori region, Fukushima.","authors":"Tianchen Zhao, Masaharu Tsubokura","doi":"10.1093/rpd/ncae078","DOIUrl":"10.1093/rpd/ncae078","url":null,"abstract":"<p><p>Radiation disasters can lead to a myriad of direct and indirect health effects. The term 'disaster-related deaths' is commonly used in Japan; however, comprehensive studies in regions severely impacted by nuclear accidents are scarce. Our research primarily focuses on Minamisoma City, situated north of the Fukushima Daiichi Nuclear Power Plant (FDNPP), and aimed to study the risks associated with evacuation and disaster-related death. We introduce the following studies: (1) risks from evacuation in elderly care facilities after the FDNPP accident; (2) detailed case reports on hospital evacuation and (3) detailed reports on disaster-related deaths. A critical lesson from the FDNPP accident is the significant risk to life posed by evacuation actions taken to avoid radiation exposure. Despite evacuation being an effective measure to reduce exposure, our preparation and knowledge are insufficient for safe execution. This paper ensures that the lessons from Fukushima are leveraged in future radiation protection measures.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561568/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of cellular effects by continuous exposure AT low concentration of tritium. 分析连续接触 AT 低浓度氚对细胞的影响。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae112
Rio Isobe, Masatoshi Suzuki, Satoru Endo, Yasushi Kino, Ryoya Ishikawa, Yohei Inaba, Manabu Fukumoto, Koichi Chida
{"title":"Analysis of cellular effects by continuous exposure AT low concentration of tritium.","authors":"Rio Isobe, Masatoshi Suzuki, Satoru Endo, Yasushi Kino, Ryoya Ishikawa, Yohei Inaba, Manabu Fukumoto, Koichi Chida","doi":"10.1093/rpd/ncae112","DOIUrl":"https://doi.org/10.1093/rpd/ncae112","url":null,"abstract":"<p><p>This study investigated the induction of DNA double-strand breaks (DSBs) in the hTERT-immortalized normal human diploid epithelial cells (RPE1-hTERT) continuously exposed to 6000 Bq/ml of tritiated water (HTO) and organically bound tritium (OBT). The relationship of the DSBs induction with the intracellular amount as well as the localization of tritium was also examined. Tritium-labeled thymidine (3H-Thy) and palmitic acid (3H-PA) were used as OBT. The average number of DSBs, which were indicated as co-localized foci of 53BP1 with phosphorylated H2AX, per cell was higher in the order of treatments with 3H-Thy, 3H-PA, and HTO. This order was consistent with that of tritium localization in the insoluble nuclear fraction but not with the intracellular amount of tritium. In addition to the intracellular amount of tritium, we showed that the subcellular localization of tritium is an important factor in cellular effects stimulated by DSBs.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625953","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}
引用次数: 0
Involvement of cellular senescence in the effect of X-irradiated human lung fibroblast WI-38 cells on human lung cancer A549 cell clonogenic potential. 细胞衰老参与了经 X 射线照射的人肺成纤维细胞 WI-38 对人肺癌 A549 细胞克隆生成潜能的影响。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae089
Hironori Yoshino, Katsuki Tadano, Chinatsu Omiya, Kae Ishii, Nanami Munakata
{"title":"Involvement of cellular senescence in the effect of X-irradiated human lung fibroblast WI-38 cells on human lung cancer A549 cell clonogenic potential.","authors":"Hironori Yoshino, Katsuki Tadano, Chinatsu Omiya, Kae Ishii, Nanami Munakata","doi":"10.1093/rpd/ncae089","DOIUrl":"https://doi.org/10.1093/rpd/ncae089","url":null,"abstract":"<p><p>Ionizing radiation not only affects irradiated but also non-irradiated surrounding cells through intercellular communication, indicating that the former cells could affect the latter. The present study investigated the effect of X-irradiated normal human lung fibroblast WI-38 cells on the clonofenic potential of human lung cancer A549 cells by co-culturing them. Moreover, the relationship between the effects of co-culturing on the clonogenic potential of A549 cells and cellular senescence in WI-38 cells was investigated. The co-culture with 10-Gy-irradiated WI-38 cells and A549 cells enhanced the clonogenic potential of non- or X-irradiated A549 cells. Irradiated WI-38 cells exhibited high SA-β-gal activity, a cellular senescence hallmark. Importantly, treatment with senolytic drugs, which eliminate senescent cells, not only influenced high-SA-β-gal-activity cell percentages among the irradiated WI-38 cells but also the effect of irradiated WI-38 cells on the clonogenic potential of A549 cells. In conclusion, our results suggest that irradiated WI-38 cells promote A549 cell clonogenic potential and irradiated senescent WI-38 cells contribute to this effect.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626783","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}
引用次数: 0
Mitochondrial reactive oxygen species-mediated fibroblast activation has a role in tumor microenvironment formation in radiation carcinogenesis. 线粒体活性氧介导的成纤维细胞活化在辐射致癌的肿瘤微环境形成中发挥作用。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae027
Tsutomu Shimura, Akira Ushiyama
{"title":"Mitochondrial reactive oxygen species-mediated fibroblast activation has a role in tumor microenvironment formation in radiation carcinogenesis.","authors":"Tsutomu Shimura, Akira Ushiyama","doi":"10.1093/rpd/ncae027","DOIUrl":"https://doi.org/10.1093/rpd/ncae027","url":null,"abstract":"<p><p>Cancer risks attributable to low-dose and low-dose-rate radiation are a serious concern for public health. Radiation risk assessment is based on lifespan studies among Hiroshima-Nagasaki A-bomb survivors; however, there are statistical limitations due to a small sample size for low-dose radiation. Therefore, basic biological studies are helpful in understanding the mechanism of radiation carcinogenesis. The detrimental effects of ionising radiation (IR) are caused by reactive oxygen species (ROS)-mediated oxidative DNA damage. IR-induced delayed ROS are produced in the electron transport chain reaction of the mitochondrial complex. Thus, mitochondria are a source of ROS and a primary target for ROS attacks. Consequently, mitochondrial dysfunction is thought to be a key event in the metabolic changes of cancer cells and is important in radiation-induced carcinogenesis. In this paper, we present recent findings on radiation carcinogenesis effect assessment, focusing on mitochondrial function as stress sensors.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626835","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}
引用次数: 0
Preliminary results of spatial distribution of radon and thoron with associated parameters in soil around active faults in Japan. 日本活动断层周围土壤中氡和钍的空间分布及相关参数的初步结果。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae117
Miroslaw Janik, Christopher Gomez, Satoshi Kodaira, Md Mahamudul Hasan
{"title":"Preliminary results of spatial distribution of radon and thoron with associated parameters in soil around active faults in Japan.","authors":"Miroslaw Janik, Christopher Gomez, Satoshi Kodaira, Md Mahamudul Hasan","doi":"10.1093/rpd/ncae117","DOIUrl":"https://doi.org/10.1093/rpd/ncae117","url":null,"abstract":"<p><p>The radon (Rn) and thoron (Tn) concentrations and other environmental parameters were measured in the vicinity of active faults in two regions with different geology structure of Japan. The range of measured values was from 1.2 to 74 kBq m$^{-3}$, 1.1 to 38.9 kBq m$^{-3}$, 0% to 4.35%, and 2$times $10$^{-13}$ to 4$times $10$^{-11}$ m$^{2}$, for Rn, Tn, CO$_{2}$, and soil permeability, respectively. Significant differences in the measured parameters were observed, suggesting that Rn concentrations near faults are strongly influenced by geological structure and fault type. Based on statistical analysis, good correlations were found between Rn, Tn, and CO$_{2}$ (carried gas ) concentrations. It is planned to continue the study with measurements at a number of additional sites.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626900","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}
引用次数: 0
Applicability of reconstruction of temporal changes in 137Cs concentrations in pond water based on the vertical distribution of bottom sediments: a case in three ponds in the Fukushima evacuation zone. 根据底部沉积物的垂直分布重建池塘水中 137Cs 浓度时间变化的适用性：福岛疏散区三个池塘的案例。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae144
Honoka Kurosawa, Alexei Konoplev, Toshihiro Wada, Kenji Nanba, Yoshifumi Wakiyama
{"title":"Applicability of reconstruction of temporal changes in 137Cs concentrations in pond water based on the vertical distribution of bottom sediments: a case in three ponds in the Fukushima evacuation zone.","authors":"Honoka Kurosawa, Alexei Konoplev, Toshihiro Wada, Kenji Nanba, Yoshifumi Wakiyama","doi":"10.1093/rpd/ncae144","DOIUrl":"https://doi.org/10.1093/rpd/ncae144","url":null,"abstract":"<p><p>Long-term changes in particulate and dissolved 137Cs concentrations in rivers and dam reservoirs have been reconstructed using 137Cs depth distributions in bottom sediments near Chornobyl and Fukushima. However, few studies have applied this method to pond water. This study tested the applicability of this reconstruction method in ponds within the Fukushima evacuation zone. Bottom sediments in ponds were collected in November 2019. Our reconstruction of a shallow closed pond disagreed with our observations. Even in ponds where the reconstruction agreed well with observations, underestimations may have occurred because the time constant for the decrease in 137Cs concentration was lower than those previously reported. We conclude that the present reconstruction method may be applied to deeper Fukushima ponds with inflow and outflow, but underestimations of initial 137Cs concentrations in water may lead to uncertainties. For realistic reconstruction, attention should be paid to pond characteristics, catchment conditions, and sediment core selection.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626116","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}
引用次数: 0
Effect of calcium application on rice ears for suppressing cesium transfer from roots to brown rice. 在稻穗上施钙对抑制铯从根部向糙米转移的影响。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae081
Masashi Kihana, Mutsumi Yamagami
{"title":"Effect of calcium application on rice ears for suppressing cesium transfer from roots to brown rice.","authors":"Masashi Kihana, Mutsumi Yamagami","doi":"10.1093/rpd/ncae081","DOIUrl":"https://doi.org/10.1093/rpd/ncae081","url":null,"abstract":"<p><p>Researchers have stressed that crops may absorb radioactive cesium (Cs) in the soil and translocate it to its edible parts. Therefore, a method was developed to suppress Cs absorption through high K fertilisation. However, this method is less effective for rice plants after ear emergence, thus demanding the application of a suppression method at this stage. In this study, we test whether immersion of ears in a Ca solution during its ripening period could suppress the translocation of Cs from roots to brown rice. The results show that the translocation of Cs absorbed from the hydroponic solution to brown rice is reduced based on the Ca concentration applied to the ears. In addition, differences in the inhibition of translocation were observed among the different Ca salts. In addition, the effect of immersion of ears in Ca solution on Cs translocation was effective at lower concentrations than that effective for K.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626635","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}
引用次数: 0
Evaluation and optimization of measurement conditions for heavy ions with fluorescent nuclear track detectors. 利用荧光核轨道探测器评估和优化重离子测量条件。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae071
Jun Hu, Tamon Kusumoto, Satoshi Kodaira
{"title":"Evaluation and optimization of measurement conditions for heavy ions with fluorescent nuclear track detectors.","authors":"Jun Hu, Tamon Kusumoto, Satoshi Kodaira","doi":"10.1093/rpd/ncae071","DOIUrl":"https://doi.org/10.1093/rpd/ncae071","url":null,"abstract":"<p><p>In applying fluorescent nuclear track detectors for heavy ion measurement, the fluorescence intensity directly influences linear energy transfer (LET) estimation. However, the conventional analysis highly depends on the analyzed depth and the reference frames from the optical readout. To improve the accuracy of measurements of heavy ions, the gradient of intensity and moving average fluorescence intensity were acquired and calculated to optimize the measurement conditions. The results indicate that the intensity gradient is an alternative quantity to discriminate ions with different LET, and the moving average fluorescence intensity is readily differentiated among individual ions without overlapping values in fluorescence intensity. The scanned range of 25-45 μm is suggested to be the most suitable depth for measurement. To exclude the impact of the variation in fluorescence intensity on evaluation, it is recommended to use the quantities calculated in moving averages with depth in the future.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626746","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}
引用次数: 0
Chemical form dependent iodine transfer from seawater into seaweed and abalone. 根据化学形式将碘从海水转移到海藻和鲍鱼中。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae167
Toshihiro Shibata, Yoshio Ishikawa
{"title":"Chemical form dependent iodine transfer from seawater into seaweed and abalone.","authors":"Toshihiro Shibata, Yoshio Ishikawa","doi":"10.1093/rpd/ncae167","DOIUrl":"https://doi.org/10.1093/rpd/ncae167","url":null,"abstract":"<p><p>Nuclear fuel reprocessing plant releases several kinds of radioactive nuclides, mainly 3H and 129I, into the oceans. Radio iodine causes thyroid dose. Iodine accumulates in several marine species such as wakame and abalone, which are food materials. Therefore, an analysis of iodine behavior in the marine environment is important to assess the impact of 129I. Iodine in seawater exists mainly in two chemical forms: iodide (I-) and iodate (IO3-). Their environmental behaviors are different. Thus, understanding these behaviors is important to assess the environmental behavior of total iodine. In this study, iodate and iodide transfer between seawater and abalone (Haliotis discus hannai) with 125I tracer was observed.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626426","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}
引用次数: 0
Environmental dependence of geometrical efficiency for the scintillation cell in radon and thoron measurement. 氡和钍测量中闪烁池几何效率的环境依赖性。
IF 0.8 4区 环境科学与生态学
Radiation protection dosimetry Pub Date : 2024-11-13 DOI: 10.1093/rpd/ncae143
Kazuki Iwaoka, Lorna Jean H Palad, Chitho P Feliciano, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami, Reiko Kanda, Takashi Moritake
{"title":"Environmental dependence of geometrical efficiency for the scintillation cell in radon and thoron measurement.","authors":"Kazuki Iwaoka, Lorna Jean H Palad, Chitho P Feliciano, Yuki Tamakuma, Masahiro Hosoda, Shinji Tokonami, Reiko Kanda, Takashi Moritake","doi":"10.1093/rpd/ncae143","DOIUrl":"https://doi.org/10.1093/rpd/ncae143","url":null,"abstract":"<p><p>222Rn is recognized as a matter of international concern for human health risk. Because 220Rn as well as 222Rn coexist in the natural environment, thoron sometimes influences the experiment for radon measurement. It is important to measure radon and thoron separately to evaluate the risk of the exposure to 222Rn. As a discriminative measurement method for 222Rn and 220Rn, a simple technique with a single scintillation cell is well known. However, in recent years, the influence of atmospheric environment on the geometrical efficiency of the scintillation cell has not yet been investigated. In this study, environmental dependence of geometrical efficiency for the scintillation cell in 222Rn and 220Rn measurement was investigated using the Lucas type scintillation cell and Monte Carlo particle simulation. It was found that the influence of temperature and pressure on the geometrical efficiencies were larger than that of relative humidity.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626716","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}
引用次数: 0
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