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https://www.readbyqxmd.com/read/28746995/desorption-of-radioactive-cesium-by-seawater-from-the-suspended-particles-in-river-water
#1
Masaki Onodera, Akira Kirishima, Seiya Nagao, Kouichi Takamiya, Tsutomu Ohtsuki, Daisuke Akiyama, Nobuaki Sato
In 2011, the accident at the Fukushima-Daiichi nuclear power plant dispersed radioactive cesium throughout the environment, contaminating the land, rivers, and sea. Suspended particles containing clay minerals are the transportation medium for radioactive cesium from rivers to the ocean because cesium is strongly adsorbed between the layers of clay minerals, forming inner sphere complexes. In this study, the adsorption and desorption behaviors of radioactive cesium from suspended clay particles in river water have been investigated...
July 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28743069/the-influence-of-134-cs-on-the-137-cs-gamma-spectrometric-peak-to-valley-ratio-and-improvement-of-the-peak-to-valley-method-by-limiting-the-detector-field-of-view
#2
Karl Östlund, Christer Samuelsson, Sören Mattsson, Christopher L Rääf
The peak-to-valley method was investigated under laboratory conditions and in situ with respect to both (134)Cs perturbation of the (137)Cs valley and use of collimation. The (134)Cs perturbation is significant down to (134)Cs:(137)Cs activity ratios of 1:100. In these cases the full energy peaks from (134)Cs (796 and 802keV) and associated valley should be used instead of the peak and valley from the (137)Cs 662keV peak. Use of collimators in situ outside Fukushima Daiichi significantly increased PTV for (134)Cs...
July 15, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28710475/isotopic-signature-and-nano-texture-of-cesium-rich-micro-particles-release-of-uranium-and-fission-products-from-the-fukushima-daiichi-nuclear-power-plant
#3
Junpei Imoto, Asumi Ochiai, Genki Furuki, Mizuki Suetake, Ryohei Ikehara, Kenji Horie, Mami Takehara, Shinya Yamasaki, Kenji Nanba, Toshihiko Ohnuki, Gareth T W Law, Bernd Grambow, Rodney C Ewing, Satoshi Utsunomiya
Highly radioactive cesium-rich microparticles (CsMPs) released from the Fukushima Daiichi Nuclear Power Plant (FDNPP) provide nano-scale chemical fingerprints of the 2011 tragedy. U, Cs, Ba, Rb, K, and Ca isotopic ratios were determined on three CsMPs (3.79-780 Bq) collected within ~10 km from the FDNPP to determine the CsMPs' origin and mechanism of formation. Apart from crystalline Fe-pollucite, CsFeSi2O6 · nH2O, CsMPs are comprised mainly of Zn-Fe-oxide nanoparticles in a SiO2 glass matrix (up to ~30 wt% of Cs and ~1 wt% of U mainly associated with Zn-Fe-oxide)...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28682791/individual-external-dose-monitoring-of-all-citizens-of-date-city-by-passive-dosimeter-5-to-51-months-after-the-fukushima-npp-accident-series-ii-prediction-of-lifetime-additional-effective-dose-and-evaluating-the-effect-of-decontamination-on-individual-dose
#4
Makoto Miyazaki, Ryugo Hayano
In the first paper of this series, we showed that the ratio c of individual dose to ambient dose did not change with time in Date City, Fukushima Prefecture, after the Fukushima Daiichi Nuclear Power Plant accident. The purpose of the present paper, the second in a series, is to estimate the lifetime doses of the Date City residents, based on continuous glass badge monitoring data, extrapolated by means of the ambient-dose-rate reduction function obtained from the airborne monitoring data. As a result, we found that the external exposure contribution to the mean additional lifetime dose of residents living in Date City is not expected to exceed 18 mSv...
July 6, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28680007/the-japan-environment-and-children-s-study-jecs-in-fukushima-prefecture-a-progress-report-on-the-enrollment-stage
#5
Koichi Hashimoto, Seiji Yasumura, Keiya Fujimori, Hyo Kyozuka, Yu Wakaki, Akiko Sato, Haruko Hanzawa, Tadahiko Yokoyama, Testushi Sato, Mitsuaki Hosoya
The Japan Environment and Children's Study is an ongoing nationwide birth cohort study that is being conducted at 15 regional centers throughout Japan. The recruitment of subjects in the study area within Fukushima Prefecture, which includes Fukushima City, Minami Soma City and Futaba County, was begun on January 31, 2011 with the cooperation of the obstetrics and gynecology departments of local medical institutions. On March 11, soon after the start of recruitment, the Tohoku region was hit by an unprecedented disaster in the shape of the Great East Japan Earthquake, which was closely followed by the Tokyo Electric Power Company's Fukushima Daiichi Nuclear Power Plant accident...
July 5, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/28675844/treatment-of-radioactive-liquid-effluents-by-reverse-osmosis-membranes-from-lab-scale-to-pilot-scale
#6
Nicolas Combernoux, Luc Schrive, Véronique Labed, Yvan Wyart, Emilie Carretier, Philippe Moulin
The recent use of the reverse osmosis (RO) process at the damaged Fukushima-Daiichi nuclear power plant generated a growing interest in the application of this process for decontamination purposes. This study focused on the development of a robust RO process for decontamination of two kinds of liquid effluents: a contaminated groundwater after a nuclear disaster and a contaminated seawater during a nuclear accident. The SW30 HR membrane was selected among other in this study due to higher retentions (96% for Cs and 98% for Sr) in a true groundwater...
June 24, 2017: Water Research
https://www.readbyqxmd.com/read/28615678/small-head-size-and-delayed-body-weight-growth-in-wild-japanese-monkey-fetuses-after-the-fukushima-daiichi-nuclear-disaster
#7
Shin-Ichi Hayama, Moe Tsuchiya, Kazuhiko Ochiai, Sachie Nakiri, Setsuko Nakanishi, Naomi Ishii, Takuya Kato, Aki Tanaka, Fumiharu Konno, Yoshi Kawamoto, Toshinori Omi
To evaluate the biological effect of the Fukushima Daiichi nuclear disaster, relative differences in the growth of wild Japanese monkeys (Macaca fuscata) were measured before and after the disaster of 2011 in Fukushima City, which is approximately 70 km from the nuclear power plant, by performing external measurements on fetuses collected from 2008 to 2016. Comparing the relative growth of 31 fetuses conceived prior to the disaster and 31 fetuses conceived after the disaster in terms of body weight and head size (product of the occipital frontal diameter and biparietal diameter) to crown-rump length ratio revealed that body weight growth rate and proportional head size were significantly lower in fetuses conceived after the disaster...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28608648/prolonged-elevated-body-mass-index-of-preschool-children-after-the-great-east-japan-earthquake
#8
Tsuyoshi Isojima, Susumu Yokoya, Atsushi Ono, Noriko Kato, Toshiaki Tanaka, Hiroshi Yokomichi, Zentaro Yamagata, Soichiro Tanaka, Hiroko Matsubara, Mami Ishikuro, Masahiro Kikuya, Shoichi Chida, Mitsuaki Hosoya, Shinichi Kuriyama, Shigeo Kure
BACKGROUND: The Great East Japan Earthquake followed by tsunamis and the Fukushima Daiichi Nuclear Power Plant (NPP) accident caused catastrophic damages. The effects of the disaster on the growth of affected children are of great concern but remain unknown. METHODS: The study population was derived from two Japanese nationwide retrospective cohorts (historical and exposed groups, respectively). The exposed group experienced the disaster at 47 to 59 months of age...
June 13, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28581037/risk-perception-and-risk-talk-the-case-of-the-fukushima-daiichi-nuclear-radiation-risk
#9
Takashi Kusumi, Rumi Hirayama, Yoshihisa Kashima
Individuals' perceptions and their interpersonal communication about a risk event, or risk talk, can play a significant role in the formation of societal responses to the risk event. As they formulate their risk opinions and speak to others, risk information can circulate through their social networks and contribute to the construction of their risk information environment. In the present study, Japanese citizens' risk perception and risk talk were examined in the context of the Fukushima Daiichi nuclear radiation risk...
June 5, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28555958/industrial-safety-and-utopia-insights-from-the-fukushima-daiichi-accident
#10
Sébastien Travadel, Franck Guarnieri, Aurélien Portelli
Feedback from industrial accidents is provided by various state or even international, institutions, and lessons learned can be controversial. However, there has been little research into organizational learning at the international level. This article helps to fill the gap through an in-depth review of official reports of the Fukushima Daiichi accident published shortly after the event. We present a new method to analyze the arguments contained in these voluminous documents. Taking an intertextual perspective, the method focuses on the accident narratives, their rationale, and links between "facts," "causes," and "recommendations...
May 29, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28552859/radiobiological-implications-of-fukushima-nuclear-accident-for-personalized-medical-approach
#11
Hisanori Fukunaga, Akinari Yokoya, Yasuyuki Taki, Kevin M Prise
On March 11, 2011, a devastating earthquake and subsequent tsunami caused serious damage to areas of the Pacific coast in Fukushima prefecture and prompted fears among the residents about a possible meltdown of the Fukushima Daiichi Nuclear Power Plant reactors. As of 2017, over six years have passed since the Fukushima nuclear crisis and yet the full ramifications of the biological exposures to this accidental release of radioactive substances remain unclear. Furthermore, although several genetic studies have determined that the variation in radiation sensitivity among different individuals is wider than expected, personalized medical approaches for Fukushima victims have seemed to be insufficient...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28542461/have-the-tsunami-and-nuclear-accident-following-the-great-east-japan-earthquake-affected-the-local-distribution-of-hospital-physicians
#12
Saori Kashima, Kazuo Inoue, Masatoshi Matsumoto
OBJECTIVE: The Great East Japan Earthquake occurred on 11 March 2011 near the northeast coast of the main island, 'Honshu', of Japan. It wreaked enormous damage in two main ways: a giant tsunami and an accident at the Fukushima Daiichi Nuclear Power Plant (FDNPP). This disaster may have affected the distribution of physicians in the region. Here, we evaluate the effect of the disaster on the distribution of hospital physicians in the three most severely affected prefectures (Iwate, Miyagi, and Fukushima)...
2017: PloS One
https://www.readbyqxmd.com/read/28541772/fungal-levels-in-houses-in-the-fukushima-daiichi-nuclear-power-plant-evacuation-zone-after-the-great-east-japan-earthquake
#13
Naohide Shinohara, Masahiro Tokumura, Kazuhiro Hashimoto, Katsuyoshi Asano, Yuji Kawakami
Residences located within 20 km of the damaged Fukushima Daiichi nuclear power plant were evacuated shortly after the Great East Japan Earthquake. The levels of airborne and surface fungi were measured in six houses in the evacuation zone in August 2012 and February 2013. Airborne fungal levels in all of the houses in the summer were higher than the environmental standard levels for residential houses published in Architectural Institute of Japan (>1,000 CFU/m(3)). In two houses whose residents rarely returned to visit, fungal levels were extremely high (> 52,000 CFU/m(3))...
May 25, 2017: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/28534840/birth-outcomes-after-the-fukushima-daiichi-nuclear-power-plant-disaster-a-long-term-retrospective-study
#14
Claire Leppold, Shuhei Nomura, Toyoaki Sawano, Akihiko Ozaki, Masaharu Tsubokura, Sarah Hill, Yukio Kanazawa, Hiroshi Anbe
Changes in population birth outcomes, including increases in low birthweight or preterm births, have been documented after natural and manmade disasters. However, information is limited following the 2011 Fukushima Daiichi Nuclear Power Plant Disaster. In this study, we assessed whether there were long-term changes in birth outcomes post-disaster, compared to pre-disaster data, and whether residential area and food purchasing patterns, as proxy measurements of evacuation and radiation-related anxiety, were associated with post-disaster birth outcomes...
May 19, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28510538/measuring-and-assessing-individual-external-doses-during-the-rehabilitation-phase-in-iitate-village-after-the-fukushima-daiichi-nuclear-power-plant-accident
#15
Wataru Naito, Motoki Uesaka, Tadahiro Kurosawa, Yujiro Kuroda
After the Fukushima Daiichi nuclear power plant accident in 2011, Iitate village was placed under an evacuation order because the level of radioactive materials drifting from the nuclear plant to the village was above a government-set level for allowing residents to live in the area. The evacuation advisory for most of the village was lifted on 31 March 2017. For displaced residents deciding whether or not to return to their homes, it is important to correctly understand and estimate the realistic individual external doses they will receive after returning to the village...
May 16, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28506111/comment-on-comprehensive-survey-results-of-childhood-thyroid-ultrasound-examinations-in-fukushima-in-the-first-four-years-after-the-fukushima-daiichi-nuclear-power-plant-accident
#16
https://www.readbyqxmd.com/read/28441287/lessons-learned-in-protection-of-the-public-for-the-accident-at-the-fukushima-daiichi-nuclear-power-plant
#17
Jessica Callen, Toshimitsu Homma
What insights can the accident at the Fukushima Daiichi nuclear power plant provide in the reality of decision making on actions to protect the public during a severe reactor and spent fuel pool emergency? In order to answer this question, and with the goal of limiting the consequences of any future emergencies at a nuclear power plant due to severe conditions, this paper presents the main actions taken in response to the emergency in the form of a timeline. The focus of this paper is those insights concerning the progression of an accident due to severe conditions at a light water reactor nuclear power plant that must be understood in order to protect the public...
June 2017: Health Physics
https://www.readbyqxmd.com/read/28429301/ethical-issues-related-to-the-promotion-of-a-100-msv-threshold-assumption-in-japan-after-the-fukushima-nuclear-accident-in-2011-background-and-consequences
#18
REVIEW
Toshihide Tsuda, Lena Lindahl, Akiko Tokinobu
PURPOSE OF REVIEW: This article describes the debates in Japan regarding the 100 mSv threshold assumption and ethical issues related to it, and explores the background to distorted risk information and absence of risk communication in Japan. Then we seek proper risk communication based on scientific evidence. RECENT FINDINGS: On March 11, 2011 an accident occurred at the Fukushima Daiichi Nuclear Power Plant due to the Great East Japan Earthquake. Since then a number of misunderstandings have become common in Japan as a result of public statements by the Japanese and local governments that have no basis in medical science or are contradictory to medical science...
June 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28418815/educational-activity-for-the-radiation-emergency-system-in-the-northern-part-of-japan-meeting-report-on-the-3rd-educational-symposium-on-radiation-and-health-esrah-by-young-scientists-in-2016
#19
Yusuke Matsuya, Takakiyo Tsujiguchi, Masaru Yamaguchi, Takaaki Kimura, Ryosuke Mori, Ryota Yamada, Ryo Saga, Yohei Fujishima, Hiroyuki Date
In the northern part of Japan, close cooperation is essential in preparing for any possible emergency response to radiation accidents because several facilities, such as the Low-Level Radioactive Waste Disposal Facility, the MOX Fuel Fabrication Plant and the Vitrified Waste Storage Center, exist in Rokkasho Village (Aomori Prefecture). After the accident at Fukushima Daiichi Nuclear Power Plant in 2011, special attention should be given to the relationship between radiation and human health, as well as establishing a system for managing with a radiation emergency...
June 2017: Radiation Research
https://www.readbyqxmd.com/read/28386515/current-state-and-problems-of-radiation-risk-communication-based-on-the-results-of-a-2012-whole-village-survey
#20
Yujiro Kuroda
PURPOSE: The entire village of Iitate was contaminated by radioactive material from the Fukushima Daiichi Nuclear Power Plant; even today, the residents remain evacuated. For the villagers, risk communication is an important element of recovery and maintaining health. This analysis focuses on the problem of radiation, presents results from a questionnaire of villagers, and examines methods for future risk communication activities. SUBJECTS AND METHODS: In May 2012, anonymous surveys were sent to 2914 heads of households whose addresses were registered in Iitate...
February 24, 2017: PLoS Currents
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