scholarly journals RADIATION-HYGIENIC ASPECTS OF REPRODUCTIVE HEALTH IN MALES OF THE STAFF OF THE NUCLEAR POWER PLANT

2019 ◽  
Vol 96 (9) ◽  
pp. 883-887
Author(s):  
Antonina M. Lyaginskaya ◽  
I. M. Petoyan ◽  
A. P. Ermalitskiy ◽  
V. V. Kuptsov ◽  
N. M. Karelina

The aim of this study was a retrospective evaluation of the reproductive health of the male staff of the Kalinin and Kursk nuclear power plant (NPP). Material and Methods. Fertility indices were used for the evaluation of the reproductive health status (ability to have children) and the health status of their offspring. For the assessment of the fertility there were used data concerning the marital status, childbirths and radiation doses received by males, obtained from the questionnaires, developed as part of this study. The data about the health of newborns was obtained from information copied from the individual cards of pregnant history cases and infant history case. In total, in the study there was analyzed data on the marital status of 679 men from Kalinin and 631 men from Kursk NPP, as well as data on the 735 and 813 newborn in the families of staff of the Kalinin and Kursk NPP, and data on 1438 and 1284 pregnant women respectively. As control groups there were used data about health of newborns and pregnant women of cities of Udomlya and Kurchatov. The combined groups included 1549 newborns and of 2718 pregnant women. Results. Infertile marriages due to the male infertility accounted for 7.3% of the Kalinin NPP personnel, and 2.5% -of Kursk NPP personnel. The incidence and complication rates of the pregnancy in families of Kalinin and Kursk NPP staff are comparable with those in the control group of pregnant women and were 75.7%, 61.6% and 71.0%, respectively. Adverse pregnancy outcomes (spontaneous abortions and early neonatal death of the newborn) were recorded in 6.9%, 0.1% in the families of the personnel of the Kalinin NPP and 8.9%, 0.2% in the families of the personnel Kursk of the NPP complying with the control values of 7.6% 0.2%, respectively. The frequency of the birth of the health child corresponds to control values as 73.6% of the families of the personnel of the Kalinin NPP, amounting to 65.3% in the families of the personnel of the Kursk NPP and 69.7% in the control group. The relative risk of birth of a child with congenital malformations RR = 0,84 in the families of staff at Kalinin NPP and RR = 1.0 - at Kursk NPP. Conclusion. No impact of occupational exposure on the reproductive health was revealed for the male staff both at Kalinin and Kursk NPP.

2019 ◽  
Vol 64 (1) ◽  
pp. 21-25
Author(s):  
И. Петоян ◽  
I. Petoyan ◽  
А. Лягинская ◽  
A. Lyaginskaya ◽  
А. Ермалицкий ◽  
...  

Purpose: To assess the reproductive health of male staff in the main departments of the Kursk nuclear power plant (NPP). Material and methods: The fertility and health of newborns were investigated. Data on marital status of 626 men of the staff and data about 813 newborns in families of male staff were analyzed. In the control group the data on the health status of newborns and pregnant groups of the population of Kurchatov city was used. Sources of information on doses to the personnel were the forms of a single system for monitoring and recording individual doses of radiation № 1-DOS “Information on the doses to persons in the conditions of normal operation of technogenic sources of ionizing radiation”. Results: Total occupational doses to the end of the main reproductive period (20–40 years) did not exceed 210 mSv, which is significantly below the threshold for temporary sterility during long-term irradiation (400 mSv/year, ICRP). Cases of infertile marriages in the families of the men of the staff (0.17 %) are below the estimation of the frequency of male infertility in Russia (1–2 %). Infant health in families of male staff and in the control group had no differences. The frequency of birth of health children was 65.3 % in families of male staff and 66.0 % for the control group. Frequency of birth of children with malformations was 35.7±6.5 per 1,000 live births and statistically (p = 0.84) did not differ from the frequency in the control group (37.4±5.3 per 1,000 live births) and was below the level adopted by the ICRP to calculate the radiation genetic risk (60 per 1,000 live births). There were no differences influenced by mother factors (age, diseases and complications during pregnancy) on fetal development and newborn health in families of the staff and control group. According to the calculations, the total occupational doses to men before the conception of children for more than 98 % of cases did not exceed 100 mSv, i.e. it was below the doses (>100 mSv), for which the genetic effects were observed in the number of epidemiological studies. However, it should be noted that 25.6 % of childbirth were in families, where men were older than 30 years, i.e. at the age, which is not subject to the additional job restrictions under the planned increased exposure. Conclusions: The impact of occupational exposure on the reproductive health status of men staff of the Kursk NPP was not identified.


2017 ◽  
Vol 29 (2_suppl) ◽  
pp. 131S-138S ◽  
Author(s):  
Hirobumi Mashiko ◽  
Hirooki Yabe ◽  
Masaharu Maeda ◽  
Syuntaro Itagaki ◽  
Yasuto Kunii ◽  
...  

The disaster at the Fukushima Daiichi Nuclear Power Plant after the Great East Japan Earthquake on March 11, 2011, might have affected the mental health status of children. To assess the mental health status, we measured the Strengths and Difficulties Questionnaire (SDQ) in 15 274 children (aged 4-15 years). The proportions of those who scored above the cutoff (≥16) of SDQ, reflecting the clinical range of the mental health status, were 25.0% (aged 4-6 years), 22.0% (aged 7-12 years, and 16.3% (aged 13-15 years), which were higher than that in the usual state (9.5%). We also explored the possibility that the distribution on the Fukushima prefectural map of the proportions of those who scored above the cutoff (≥16) of SDQ might correspond with the environmental radiation levels, but there was no significant correlation.


2016 ◽  
Vol 38 (4) ◽  
pp. 252-256 ◽  
Author(s):  
N I Bilous ◽  
I V Abramenko ◽  
A A Chumak ◽  
I S Dyagil ◽  
Z V Martina

Previous analyses in a cohort of Chornobyl cleanup workers revealed significantly increased radiation-related risk for all leukemia types, including chronic lymphocytic leukemia (CLL). Numerous investigations emphasized the significance of genetic susceptibility to the radiation carcinogenesis. The aim of the work was to study the distribution of TP53 single nucleotide polymorphisms (SNPs) in CLL patients exposed to ionizing radiation (IR) due to Chornobyl nuclear power plant accident and estimate their impact on disease development. Materials and Methods: The TP53 exonic and intronic SNPs were analyzed in 236 CLL patients by polymerase chain reaction and direct sequencing. The main group included 106 IR exposed CLL patients and the control group was composed of 130 IR non-exposed CLL patients. Results: Nineteen TP53 SNPs were found in the observed CLL cohort. No significant differences were found between the main and the control groups, but increased frequencies of T/T rs12947788 + G/G rs12951053 homozygotes and rs146340390 C/T variants were found among IR-exposed CLL patients compared with healthy Europeans (data from the 1000 Genomes Project). Rare nucleotide substitution rs146340390 (c.665C>T) was found only in the main group. These features were primarily typical for the most affected group of IR-exposed patients, namely, cleanup workers engaged in emergency works in the 2nd quarter of 1986. Conclusion: These preliminary findings don’t contradict the assumption on possible influence of IR on CLL development via the p53-dependent pathway. This article is a part of a Special Issue entitled “The Chornobyl Nuclear Accident: Thirty Years After”.


2020 ◽  
Vol 73 (5) ◽  
pp. 1011-1015
Author(s):  
Roksolana P. Nykolaichuk ◽  
Oleksandr S. Fedoruk ◽  
Volodymyr V. Vizniuk

The aim of our work was to make analysis of world literature that develops a problem of impact of environment on male reproductive health. Materials and methods: We analyzed the bibliography available, until January 2020, about influence of different exogenic factors on male reproductive system. Conclusions: The biggest influence of ionizing radiation on mankind was reached after two big catastrophes: Chernobyl Nuclear Power Plant in April 1986 and an accident on the Fukushima Daiichi Nuclear Power Plant in March 2011. However, impact of ionizing radiation on male reproductive in literature still remains controversy that needs more detailed study. Lead influences on such sperm parameters, as sperm morphology, count, motility, semen volume. So, specific attention should be paid to the type of work routinely performed by man. Another one environmental factor that has negative influence is a heat. It effects on sperm morphology and motility.


Author(s):  
Valery G. Barchukov ◽  
Oleg A. Kochetkov ◽  
Vladimir N. Klochkov ◽  
Natalya A. Eremina ◽  
Aleksei A. Maksimov

Tritium is one of the most important dose-forming radionuclides that determine the radiation situation in the area where nuclear fuel cycle enterprises are located. At the same time, it is not possible to catch the tritium formed during the operation of a nuclear power plant using modern, efficient and cheap technologies. This causes an increase in its concentration in environmental objects and an increase in the contribution of technogenic tritium to the radiation load of the population. Therefore, the task of monitoring the formation of tritium during the operation of nuclear power plants, the content of tritium in emissions and discharges of nuclear power plants, as well as the distribution of this radionuclide in the environment is especially urgent today. The study aims to analyze the environmental pollution due to emissions and discharges of tritium from the Kalininskaya nuclear power plant, the process of spreading tritium by air, as well as the accumulation of this radionuclide in water bodies, soil and food products grown in the area of the nuclear power plant. The following methods, developed by the specialists of the Burnasyan Federal Medical Biophysical Center were used during the research: 1) "Method for determining the volumetric activity of organic and inorganic tritium compounds in water bodies by liquid scintillation spectrometry". 2) "Methodology for determining the concentration of organic and inorganic tritium compounds in the air of the environment and industrial premises". 3) "The method for determining the specific activity of tritium compounds in soil and vegetation" was developed and tested in the course of field studies at the Kalinin NPP. As a sample preparation we used the method based on burning a selected sample in a specialized Pyrolyser-6 Trio oven. All prepared counting samples were measured by liquid scintillation spectrometry on a counter Tri-Carb 3180TR/SL. On the basis of an integrated approach to assessing the content of tritium and its compounds in air, water, soil and food, an analysis of the formation of environmental pollution due to emissions and discharges of tritium from the Kalinin NPP was carried out. It is shown that the transport of emissions from the NPP by air and the wind direction prevailing in the territory of the NPP location have a significant importance in the formation of the contribution to the ingress of tritium into foodstuffs. The necessity of taking into account the ingress of tritium and its compounds with nuclear plant emissions into the environment in the task of optimization of radiation protection of the population under conditions of normal operation of NPP is shown.


2018 ◽  
Vol 3 (3) ◽  
pp. 379
Author(s):  
Chelebiev R.A. ◽  
Skomorokhov A.O.

In this paper, it is investigated nuclear power plant operating data which was obtained from reactor main coolant pumps (MCP) of the third isolated generating plant of Kalinin NPP. It is necessary permanent monitoring for state of all pump components since breakdown of a reactor coolant pump leads to substantial economic losses. It is installed over 50 sensors of different control systems at the every MCP. Received data is stored but it is not analysed for the purpose of discovering  joint dependencies between equipment pieces and unobvious, hidden trends of accident propagation. In this work, it was proposed techniques for detection of hidden anomalies and MCP operating regularity based on factor analysis, clustering and linear regression models. It was written a Python script which automates necessary calculations.


2016 ◽  
Vol 31 (2) ◽  
pp. 173-178
Author(s):  
Masahiko Sawajiri ◽  
Shoichi Miyamoto ◽  
Kohkoh Yamanouchi ◽  
Shoji Wada ◽  
Preeyaporn Srimawong ◽  
...  

The Fukushima Daiichi Nuclear Power Plant disaster on March 11, 2011, caused radiation hazards throughout Fukushima Prefecture. Cesium was absorbed by soil and plants and transferred to livestock. Removing radioactive cesium from the bodies of farm animals and humans is essential. It has recently been reported that H2 scavenges reactive oxygen species and suppresses oxidative stress-related diseases. The hypothesis is that ?active hydrogen? (hydrogen water) scavenges active oxygen species. We hypothesized that high-energy electrolytic hydrogen water will effectively decontaminate cesium-exposed chickens. A test group of chickens drank high-energy electrolytic hydrogen water, while the control group drank regular water. Cesium contents in the test group were significantly lower than in the controlled one, possibly because more cesium excretion occurred in the test group than the control group. Lower 137Cs concentrations were found in test-group tissues than in control-group tissues, showing that high-energy electrolytic hydrogen water increased the rate of elimination of 137Cs incorporated into chicken tissue.


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