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https://www.readbyqxmd.com/read/29350190/development-and-validation-of-a-high-resolution-mapping-platform-to-aid-in-the-public-awareness-of-radiological-hazards
#1
Peter George Martin, Dean Connor, Oliver David Payton, Macarena Leal-Olloqui, Anya C Keatley, Thomas B Scott
The distribution, quantification and exposure-related effects of radiation in the environment, arising from both natural and anthropogenic sources, is of great (and growing) concern for global populations. Recent events at the Fukushima Daiichi Nuclear Plant (FDNPP) have further highlighted the importance of developing radiation mapping technologies that not only contribute to the continued assessment of contamination, but can also serve as an educational tool for members of the public regarding its behaviour and extent...
January 19, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29336565/appearances-of-fukushima-daiichi-nuclear-power-plant-derived-137cs-in-coastal-waters-around-japan-results-from-marine-monitoring-off-nuclear-power-plants-and-facilities-1983-2016
#2
Hyoe Takata, Masashi Kusakabe, Naohiko Inatomi, Takahito Ikenoue
Monitoring of 137Cs in seawater in coastal areas around Japan between 1983 and 2016 yielded new insights into the sources and transport of Fukushima Daiichi Nuclear Power Plant (FDNPP)-derived 137Cs, particularly along the west coast of Japan. Before the FDNPP accident (1983-2010), the activity concentrations of 137Cs, mainly from fallout, were decreasing exponentially. Effective 137Cs half-lives in surface seawater ranged from 15.6 to 18.4 yr. After the FDNPP accident (March 2011) 137Cs activity concentrations in seawater off Fukushima and neighboring prefectures immediately increased...
January 16, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29329263/effect-of-radiological-countermeasures-on-subjective-well-being-and-radiation-anxiety-after-the-2011-disaster-the-fukushima-health-management-survey
#3
Michio Murakami, Yoshitake Takebayashi, Yoshihito Takeda, Akiko Sato, Yasumasa Igarashi, Kazumi Sano, Tetsuo Yasutaka, Wataru Naito, Sumire Hirota, Aya Goto, Tetsuya Ohira, Seiji Yasumura, Koichi Tanigawa
After the Fukushima Daiichi Nuclear Power Station accident in 2011, concerns about radiation exposure and decline in subjective well-being have been reported. To tackle these problems, various countermeasures in relation to radiation have been implemented. In this study, we comprehensively evaluated the effects of radiological countermeasures on subjective well-being (e.g., satisfaction with life (SWL) and emotional well-being) and radiation anxiety, through a questionnaire survey targeting Fukushima residents (N = 1023)...
January 12, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29316618/trajectories-of-emotional-symptoms-and-peer-relationship-problems-in-children-after-nuclear-disaster-evidence-from-the-fukushima-health-management-survey
#4
Misari Oe, Masaharu Maeda, Tetsuya Ohira, Shuntaro Itagaki, Mayumi Harigane, Yuriko Suzuki, Hirooki Yabe, Seiji Yasumura, Kenji Kamiya, Hitoshi Ohto
The Fukushima Daiichi Nuclear Power Plant accident, which occurred in March 2011, is having long-term effects on children. We planned this study to describe the trajectories of emotional symptoms and peer relationship problems in children and to examine potential risks and protective factors over the 35 months following the accident. The sample was 11,791 children in the first to sixth elementary grades. We identified four patterns for emotional symptoms and three patterns for peer relationship problems, using group-based trajectory modelling...
January 6, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29304449/rapid-removal-of-radioactive-cesium-by-polyacrylonitrile-nanofibers-containing-prussian-blue
#5
Hyuncheol Kim, Minsun Kim, Wanno Lee, Soonhyun Kim
After the Fukushima Daiichi Nuclear Power Plant disaster in Japan in 2011, the demand drastically increased for efficient technology for the removal of radioactive cesium. Prussian blue (PB) nanoparticles have shown excellent adsorption ability toward Cs. In this study, we synthesized PB nanoparticles incorporated polyacrylonitrile nanofiber (PB/PAN). PB/PAN has the porous structure of nanofibers, with diameters of several hundred nanometers. PB nanoparticles can be incorporated successfully into the PAN matrix without any change to their intrinsic crystallinity and structure...
December 27, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29275343/assessment-of-medium-term-cardiovascular-disease-risk-after-japan-s-2011-fukushima-daiichi-nuclear-accident-a-retrospective-analysis
#6
Haruka Toda, Shuhei Nomura, Stuart Gilmour, Masaharu Tsubokura, Tomoyoshi Oikawa, Kiwon Lee, Grace Y Kiyabu, Kenji Shibuya
OBJECTIVE: To assess the medium-term indirect impact of the 2011 Fukushima Daiichi nuclear accident on cardiovascular disease (CVD) risks and to identify whether risk factors for CVD changed after the accident. PARTICIPANTS: Residents aged 40 years and over participating in annual public health check-ups from 2009 to 2012, administered by Minamisoma city, located about 10 to 40 km from the Fukushima Daiichi nuclear plant. METHODS: The sex-specific Framingham CVD risk score was considered as the outcome measure and was compared before (2009-2010) and after the accident (2011-2012)...
December 22, 2017: BMJ Open
https://www.readbyqxmd.com/read/29274797/an-inverse-method-to-estimate-emission-rates-based-on-nonlinear-least-squares-based-ensemble-four-dimensional-variational-data-assimilation-with-local-air-concentration-measurements
#7
Xiaobing Geng, Zhenghui Xie, Lijun Zhang, Mei Xu, Binghao Jia
An inverse source estimation method is proposed to reconstruct emission rates using local air concentration sampling data. It involves the nonlinear least squares-based ensemble four-dimensional variational data assimilation (NLS-4DVar) algorithm and a transfer coefficient matrix (TCM) created using FLEXPART, a Lagrangian atmospheric dispersion model. The method was tested by twin experiments and experiments with actual Cs-137 concentrations measured around the Fukushima Daiichi Nuclear Power Plant (FDNPP)...
December 21, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29274551/90sr-specific-activity-of-teeth-of-abandoned-cattle-after-the-fukushima-accident-teeth-as-an-indicator-of-environmental-pollution
#8
Kazuma Koarai, Yasushi Kino, Atsushi Takahashi, Toshihiko Suzuki, Yoshinaka Shimizu, Mirei Chiba, Ken Osaka, Keiichi Sasaki, Yusuke Urushihara, Tomokazu Fukuda, Emiko Isogai, Hideaki Yamashiro, Toshitaka Oka, Tsutomu Sekine, Manabu Fukumoto, Hisashi Shinoda
90Sr specific activity in the teeth of young cattle that were abandoned in Kawauchi village and Okuma town located in the former evacuation areas of the Fukushima-Daiichi Nuclear Power Plant (FNPP) accident were measured. Additionally, specific activity in contaminated surface soils sampled from the same area was measured. (1) All cattle teeth examined were contaminated with 90Sr. The specific activity, however, varied depending on the developmental stage of the teeth during the FNPP accident; teeth that had started development before the accident exhibited comparatively lower values, while teeth developed mainly after the accident showed higher values...
December 20, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29249741/-a-survey-about-the-radiation-effects-and-a-health-survey-of-fukushima-inhabitants-after-the-fukushima-daiichi-nuclear-power-plant-accident
#9
Ryuji Okazaki, Kazuhiro Ohga, Makoto Yoko-O, Masaoki Kohzaki
According to questionnaire surveys in 2011 and 2013 about the health effects of radiation after the Fukushima Daiichi Nuclear Power Plant Accident, the guardians of child patients were more anxious than doctors and medical students. Also, according to the thyroid examinations in a Fukushima health survey, 190 cases of thyroid cancer were reported, and anxiety about radiation effects remained. This study is based on a survey about the guardians of child patients anxiety about radiation effects six years after the nuclear power plant accident, and includes a questionnaire survey about radiation effects and thyroid examinations in a Fukushima health survey...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/29240794/radiocesium-contamination-and-estimated-internal-exposure-doses-in-edible-wild-plants-in-kawauchi-village-following-the-fukushima-nuclear-disaster
#10
Rimi Tsuchiya, Yasuyuki Taira, Makiko Orita, Yoshiko Fukushima, Yuukou Endo, Shunichi Yamashita, Noboru Takamura
Kawauchi Village, in Fukushima Prefecture, is located within a 30-km radius of the nuclear disaster site of the Fukushima Daiichi Nuclear Power Plant (FDNPP). "Sansai" (edible wild plants) in this village have been evaluated by gamma spectrometry after the residents had returned to their homes, to determine the residents' risk of internal exposure to artificial radionuclides due to consumption of these plants. The concentrations of radiocesium (cesium-134 and cesium-137) were measured in all 364 samples collected in spring 2015...
2017: PloS One
https://www.readbyqxmd.com/read/29237989/the-characteristics-of-non-respondents-and-respondents-of-a-mental-health-survey-among-evacuees-in-a-disaster-the-fukushima-health-management-survey
#11
Naoko Horikoshi, Hajime Iwasa, Seiji Yasumura, Masaharu Maeda
The Fukushima Medical University conducted a mental health care program for evacuees after the Fukushima Daiichi nuclear power plant accident. However, the mental health status of non-respondents has not been considered for surveys using questionnaires. Therefore, the aim of this study was to clarify the characteristics of non-respondents and respondents. The target population of the survey (FY2011-2013) is people living in the nationally designated evacuation zone of Fukushima prefecture. Among these, the participants were 967 people (20 years or older)...
December 12, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/29236725/roles-of-children-and-their-parents-in-the-reduction-of-radiation-risk-after-the-2011-fukushima-daiichi-nuclear-power-plant-accident
#12
Maya Sophia Fujimura, Yukako Komasa, Shinzo Kimura, Akira Shibanuma, Akiko Kitamura, Masamine Jimba
INTRODUCTION: On March 11, 2011, Japan experienced its largest recorded earthquake with a magnitude of 9.0. The resulting tsunami caused massive damage to the Fukushima Daiichi Nuclear Power Plant reactors, and the surrounding environment was contaminated with radioactive materials. During this period, some residents were exposed to high levels of radiation (up to 5 millisieverts [mSv]), but since then, many residents have been exposed to low levels of radiation (<1 mSv). This study was conducted to assess the effects of lifestyle and attitude factors on external radiation exposure among Fukushima residents...
2017: PloS One
https://www.readbyqxmd.com/read/29235452/comparison-of-external-doses-between-radio-contaminated-areas-and-areas-with-high-natural-terrestrial-background-using-the-individual-dosimeter-d-shuttle-75-months-after-the-fukushima-daiichi-nuclear-power-plant-accident
#13
Masaharu Tsubokura, Shuhei Nomura, Izumi Yoshida, Toyoaki Sawano, Makoto Miyazaki, Satoru Tomita, Tomoyoshi Oikawa, Masami Watanabe
After the Fukushima Daiichi nuclear power plant accident, the air dose gradually decreases every year due to the physical decay of radioactive materials and environmental changes as well as countermeasures. However, there is little information on personal behavioral patterns and individual dose from external exposure among the inhabitants around the nuclear power plant. To evaluate the dose from external exposure in Minamisoma city and compare the differences with outside of Fukushima, we started the external dose assessment project in cooperation with city officials in Minamisoma as well as other three cities in Japan, where the natural terrestrial background radiation level is relatively high...
December 13, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29235443/integrating-radiation-protection-criteria-for-radioactive-waste-management-into-remediation-procedures-in-existing-exposure-situations-after-a-nuclear-accident
#14
Daisuke Sugiyama, Hideo Kimura, Hirokazu Tachikawa, Takeshi Iimoto, Yosuke Kawata, Haruyuki Ogino, Minoru Okoshi
Experience after the accident at the Fukushima Daiichi nuclear power station has shown that there is a need to establish radiation protection criteria for radioactive waste management consistent with the criteria adopted for the remediation of existing exposure situations. A stepwise approach to setting such criteria is proposed. Initially, a reference level for annual effective dose from waste management activities in the range 1-10 mSv should be set, with the reference level being less than the reference level for ambient dose...
December 13, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29213010/continuous-improvement-of-fitness-for-duty-management-programs-for-workers-engaging-in-stabilizing-and-decommissioning-work-at-the-fukushima-daiichi-nuclear-power-plant
#15
Koji Mori, Seiichiro Tateishi, Tatsuhiko Kubo, Yuichi Kobayashi, Ko Hiraoka, Futoshi Kawashita, Takeshi Hayashi, Yoshifumi Kiyomoto, Masaki Kobashi, Kota Fukai, Hiroyuki Tahara, Ryuji Okazaki, Akira Ogami, Kazuyuki Igari, Katsunori Suzuki, Hiroshi Kikuchi, Kazuhiro Sakai
BACKGROUND: Numerous workers have participated in recovery efforts following the accident that occurred at the Tokyo Electric Power Company (TEPCO) Fukushima Daiichi Nuclear Power Plant after the Great East Japan Earthquake. These workers, belonging to various companies, have been engaged in various tasks since the accident. Given the hazards and stress involved in these tasks and the relatively long time required to transport sick or injured workers to medical institutions, it became necessary to quickly implement a more stringent management program for fitness for duty than in ordinary work environments...
December 6, 2017: Journal of Occupational Health
https://www.readbyqxmd.com/read/29145313/the-importance-of-family-caregiving-to-achieving-palliative-care-at-home-a-case-report-of-end-of-life-breast-cancer-in-an-area-struck-by-the-2011-fukushima-nuclear-crisis-a-case-report
#16
Akihiko Ozaki, Masaharu Tsubokura, Claire Leppold, Toyoaki Sawano, Manabu Tsukada, Tsuyoshi Nemoto, Kazuhiro Kosugi, Yoshitaka Nishikawa, Shigeaki Kato, Hiromichi Ohira
RATIONALE: The primary setting of palliative care has shifted from inpatient care to patients' residences. Family caregiving is essential for patients with life-limiting illnesses to receive palliative care at home, however little information is available regarding potential interventions to achieve palliative homecare for those without sufficient support from family members in various settings, including disasters. PATIENT CONCERNS: In March 2011, Fukushima, Japan experienced an earthquake, tsunami and nuclear disaster...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29142200/potassium-fertilisation-reduces-radiocesium-uptake-by-japanese-cypress-seedlings-grown-in-a-stand-contaminated-by-the-fukushima-daiichi-nuclear-accident
#17
Masabumi Komatsu, Keizo Hirai, Junko Nagakura, Kyotaro Noguchi
We analysed suppressive effects of potassium (K) fertilisation on radiocesium ((137)Cs) uptake by hinoki cypress (Chamaecyparis obtusa) seedlings from soils contaminated after the Fukushima Daiichi Nuclear Power Plant accident. Three-year-old seedlings were planted in a clear-cut forest (ca. 4 ha) during June-July 2014, and potassium chloride fertiliser (83 kg K ha(-1)) was applied twice (August 2014 and April 2015). (137)Cs concentrations in the needles in the fertilised plots were one-eighth of those in the control (unfertilised) plots at the end of the second growing season (October 2015)...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141628/gene-expression-analyses-of-the-small-intestine-of-pigs-in-the-ex-evacuation-zone-of-the-fukushima-daiichi-nuclear-power-plant
#18
Motoko Morimoto, Ayaka Kato, Jin Kobayashi, Kei Okuda, Yoshikazu Kuwahara, Yasushi Kino, Yasuyuki Abe, Tsutomu Sekine, Tomokazu Fukuda, Emiko Isogai, Manabu Fukumoto
BACKGROUND: After the accident at the Fukushima Daiichi Nuclear Power Plant, radioactive contaminants were released over a widespread area. Monitoring the biological effects of radiation exposure in animals in the ex-evacuation zone should be continued to understand the health effects of radiation exposure in humans. The present study aimed to clarify the effects of radiation by investigating whether there is any alteration in the morphology and gene expressions of immune molecules in the intestine of pigs and inobuta (wild boar and domestic pig hybrid) in the ex-evacuation zone in 2012...
November 15, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29136831/rapid-method-for-determination-of-90-sr-in-seawater-by-liquid-scintillation-counting-with-an-extractive-scintillator
#19
Masaki Uesugi, Ryosuke Watanabe, Hiroaki Sakai, Akihiko Yokoyama
A rapid determination method of (90)Sr is developed for the monitoring of seawater around the Fukushima Daiichi Nuclear Power Plant (FDNPP). Three ideas of chemical separation and measurements to accelerate (90)Sr analysis are investigated. Strontium is co-precipitated in a two-step procedure with hydroxyapatite after the removal of magnesium phosphate in the presence of citric acid. The purification process of strontium is in combination with solid phase extraction disks. One or two sheets of Sr Rad disk and cyclic operations are examined to eliminate interfering substances and secure the exchange capacity...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136641/radioactive-contamination-in-the-tokyo-metropolitan-area-in-the-early-stage-of-the-fukushima-daiichi-nuclear-power-plant-fdnpp-accident-and-its-fluctuation-over-five-years
#20
Masanobu Ishida, Hideo Yamazaki
Radioactive contamination in the Tokyo metropolitan area in the immediate aftermath of the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident was analyzed via surface soil sampled during a two-month period after the accident. 131I, 134Cs, and 137Cs were detected in these soil samples. The activity and inventory of radioactive material in the eastern part of Tokyo tended to be high. The 134Cs/137Cs activity ratio in soil was 0.978 ± 0.053. The 131I/137Cs ratio fluctuated widely, and was 19.7 ± 9.0 (weighted average 18...
2017: PloS One
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