著者
雨宮 好文
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.32, no.2, pp.135-138, 1997 (Released:2010-02-25)
参考文献数
2
著者
Shigenobu NAGATAKI
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.45, no.4, pp.370-378, 2010 (Released:2011-07-12)
参考文献数
12
被引用文献数
4 7

The latest knowledge encompass findings presented both in individual scientific publications and in internationally accepted reports. This review summarizes the latest knowledge on radiobiological effects on the latter level, using studies of atomic bomb survivors and victims of Chernobyl nuclear power plant accident. First of all, it is important to note that while examining individual patient, it is impossible to distinguish a radiation-induced cancer patient and non-radiation-induced cancer patient even when using state-of-the-art techniques. Therefore, investigation of radiation effects on humans, especially late health effects has been based on the epidemiological and statistical methods. Based on studies on atomic bomb survivors, it is well accepted that there is a linear increase in the risk of cancer with the increase of radiation dose. However, the existence of a threshold is a controversial issue, and health effects with regards to non-cancer diseases are not yet accepted by international authorities. Childhood thyroid cancer has increased after the Chernobyl accident and more than several thousands children are affected by it. However, there is no proof that any disease, with the exception of thyroid cancer and acute radiation effects, has increased after the Chernobyl accident. Finally, it should be mentioned that providing scientific explanation of the results to general public is an honorable duty of concerned scientists.
著者
神田 玲子 辻 さつき 米原 英典
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.49, no.2, pp.68-78, 2014
被引用文献数
3

In general, the press is considered to have amplified the level of public's anxiety and perception of risk. In the present study, we analyzed newspaper article headlines and Internet contents that were released from March 11, 2011 to January 31, 2012 using text mining techniques. The aim is to reveal the particular characteristics of the information propagated regarding the Fukushima NPP Accident. The article headlines of the newspapers which had a largest circulation were chosen for analysis, and contents of Internet media were chosen based on the number of times they were linked or retweeted. According to our text mining analysis, newspapers frequently reported the "measurement, investigation and examination" of radiation/radioactive materials caused by the Fukushima Accident, and this information might be spread selectively via the social media. On the other hand, the words related to health effects of radiation exposure (i. e., cancer, hereditary effects) were rare in newspaper headlines. Instead, words like "anxiety" and "safe" were often used to convey the degree of health effects. Particularly in March of 2011, the concept of "danger" was used frequently in newspaper headlines. These indirect characterizations of the situation may have contributed more or less to the misunderstanding of the health effects and to the enhanced perception of risk felt by the public. In conclusion, there were found no evidence to suggest that newspapers or Internet media users released sensational information that increased the health anxiety of readers throughout the period of analysis.
著者
鈴木 譲
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.29, no.2, pp.134-137, 1994 (Released:2010-02-25)
参考文献数
21
著者
岡村 泰治 小林 克彦 草間 朋子 吉澤 康雄
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.19, no.3, pp.231-237, 1984 (Released:2010-02-25)
参考文献数
10

The values of Derived Limits of Effluent Water Concentration, (DLEC)w, have been estimated in accordance with the principles of the recent recommendations of the International Commission on Radiological Protection.The (DLEC)w's were derived from the Annual Limits on Intake for individual members of the public (ALIp), considering realistic models of exposure pathways and annual intake rates of foods. The ALIp's were decided after consideration of body organ mass and other age dependent parameters. We assumed that the materials which brought exposure to the public were drinking water, fish, seaweed, invertebrate and seashore. The age dependence of annual intake rate of food might be proportional to a person's energy expenditure rate. The following results were obtained. Infants were the critical group of the public at the time of derivation of (DLEC)w. The ALIp's for the infants were about one-hundredth of those for workers and their (DLEC)w's were about one-third of those for the adult members of the public.
著者
小林 信義 山本 泰 明石 真言
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.33, no.3, pp.323-330, 1998 (Released:2010-02-25)
参考文献数
44
被引用文献数
7 8

Prussian blue, a blue pigment, belongs to the ferric cyanoferrate (II) group. It binds univalent metal ions, and the binding activity depends on their ionic radius. Prussian blue is not absorbed from the gastrointestinal tract in a significant amount. The cesium is entero-enteric cycled through the intestine. Prussian blue inhibits the reabsorption of the cesium. Many studies using experimental animals showed that the oral administration of Prussian blue increases the rate of the fecal excretion of radiocesium which results in shortening its biological half life. The accident in Goiania, Brazil, in 1987 showed that Prussian blue effectively accelerated the removal of radiocesium without toxicity. In the present review, we describe Prussian blue from a biological aspect and discuss its clinical application for the decontamination of cesium in radiation accidents.
著者
山根 靖弘
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.25, no.3, pp.269-277, 1990 (Released:2010-02-25)
参考文献数
4
被引用文献数
1
著者
山口 恭弘
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.29, no.3, pp.303-308, 1994 (Released:2010-02-25)
参考文献数
17

A new version of the dose calculation program, JEUNESSE-2 code, was developed which copes with external neutrons as well as photons. The code is capable of calculating the effective dose E for six different age groups: 0-, 1-, 5-, 10- and 15-year, and adult. The continuous function of the radiation weighting factor and the new tissue weighting factors, specified in ICRP Publication 60, were employed in the calculation of E. The Monte Carlo code MORSE-CG was incorporated in the JEUNESSE-2 code to calculate the transport of neutrons and produced γ-rays from a source to organs or tissues of the phantoms. A sample calculation for isotropic neutron incidence showed a significant age dependence of E. A comparison of the resultant E for adult males with other results gave good agreement.

2 0 0 0 OA 標準日本人

著者
田中 義一郎
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.25, no.1, pp.49-60, 1990 (Released:2010-02-25)
参考文献数
25
被引用文献数
3 2
著者
Mikhail BALONOV
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.54, no.3, pp.161-171, 2019-10-29 (Released:2019-11-21)
参考文献数
32
被引用文献数
1

In the history of the world nuclear industry there were four major accidents of operating nuclear reactors, i.e., at plutonium production facility in Windscale, UK, 1957; at NPP Three Mile Island, USA, 1979; at Chernobyl NPP, USSR, 1986; and at Fukushima-1 NPP, Japan, in 2011. The Chernobyl accident was the most severe, causing a huge release and deposition of radionuclides over large areas of Europe. Only after this accident there were real health effects caused by radiation, including carcinogenic effect among the population of the adjacent areas of Belarus, Russia and Ukraine. In this paper, same-type basic radiological characteristics are presented for four reactor accidents with more detail presented for the Chernobyl accident. The latter include mean radiation doses incurred by various groups of inhabitants of the three more affected countries, Belarus, Russia and Ukraine. Those who were children at the time and drank milk with high levels of radioactive iodine received high thyroid doses. Since early 1990s there was dramatic increase in thyroid cancer incidence among those exposed to radioiodine at a young age. Apart from this kind of health effects there was no clearly demonstrated increase in the somatic diseases due to radiation. The paper discusses the reasons why the Chernobyl accident had severe radiological consequences.
著者
稲葉 次郎
出版者
Japan Health Physics Society
雑誌
保健物理 (ISSN:03676110)
巻号頁・発行日
vol.12, no.2, pp.109-116, 1977 (Released:2010-02-25)
参考文献数
9
被引用文献数
1

As any radiation exposure may involve some degree of risk the International Commission of Radiation Protection recommends that any unnecessary exposure be avoided, and that all doses be kept ALARA, i. e., as low as is readily achievable, economic and social considerations being taken into account. To define the level at which it can be said that a dose is ALARA the use of cost- (or risk-) benefit analysis is required. In making a cost-benefit calculation the most difficult step is the conversion of positive and negative effect into a consistent set of units, i. e., conversion of man-rem into dollars. This paper presents the monetary value of population dose which appeared in the past reports (six papers reffered by ICRP Publication 22, BEIR Report and NRC-10CFR50, App. I).We must be very careful in the application of cost-benefit analysis to decision making of individual cases, but the estimated risk in monetary term may help us at least to check whether we act in a consistent way.