Assessment of committed doses received by agricultural workers in grain harvesting operations in the areas of radioactive contamination

Podolyak, A.G.; Тагай, С. А.; Нилова, Е. К.; Averin, V.

doi:10.1051/radiopro/2017001

Cited by 6 publications

(2 citation statements)

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“…In our opinion [27], differences in the completeness of sorption of radionuclides from the soil by different minerals are due, first of all, to the different structure of their crystal lattice. Thus, the minerals of the montmorillonite group (ascanite, gumbrine), as well as the minerals of the mica and hydromica group, due to the structure of the crystalline lattice, have intramicellular absorption (cations entering the crystalline lattice).…”

Section: Environmental Healthy Of Radionuclides' Contaminated Soilmentioning

confidence: 97%

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Modern environmental technologies of healthy soils contaminated by heavy metals and radionuclides

et al. 2020

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Object of research: to systematize (taking into account the possible consequences to biosphere) the known technologies for ecological restoration of soils contaminated by heavy metals and radionuclides. Only a healing technology should be recognized as one possible methodology for solving any soil problems. For soils contaminated by heavy metals and radionuclides healing patterns is conceptually ordered into the following levels: mission, strategy, technology. The mission of healthy soil should be aimed at maintaining the chemical elements content within the optimum interval. The strategy of healthy soil involves the regulation of individual elements content in the soil. Ex-situ a soil healing technology is implemented outside the original pollution site. In-situ, a soil healing technology is carried out directly on the original pollution site. Excavation of the contaminated soil layer is the first stage for ex-situ soil restoration. In the future it will be possible: 1) storage of contaminated soil at special landfills, 2) treatment of contaminated soil at a special reactor. All technologies for in-situ healthy of heavy metals contaminated soils can be ordered as: 1) localization, 2) deconcentration, 3) inactivation, 4) extraction.

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Section: Environmental Healthy Of Radionuclides' Contaminated Soilmentioning

confidence: 97%

“…In our opinion [27,28,29,30,48] for soils contaminated by heavy metals and radionuclides healing pattern is ordered conceptually into the following levels: mission, strategy, technology. The mission of healthy soil should be aimed at maintaining the chemical elements content within the optimum interval.…”

Section: Principal Model Of the Healthy Soilmentioning

confidence: 99%

Modern environmental technologies of healthy soils contaminated by heavy metals and radionuclides

et al. 2020

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Exposure of the Biogas Station Operators Working With Contaminated Biomass

Škrkal

Možnar

Kajan

et al. 2019

Radiation Protection Dosimetry

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The article deals with evaluation of irradiation of an operator of a 1 MW biogas station (BGS), processing silage plant biomass contaminated by 137Cs and 134Cs. External irradiation and internal irradiation by the means of aerosol particles inhalation were considered. For calculation of the external irradiation, a BGS model was created in the MCNP. The calculated total committed effective doses received by the operator during annual handling of biomass contaminated by 1 kBq per kg of 137Cs or 134Cs were 34 or 69 μSv, respectively. Three scenarios of contamination were evaluated: freshly contaminated silage after model accident, silage right after the Chernobyl accident and at the current radiation situation in the Czech Republic.

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Assessment of the current levels of 241Am and 137Сs in soils and foodstuff, as well as of public internal exposure to ionizing radiation in populated areas adjacent to the Chernobyl NPP exclusion zone (case study: the Bragin district of the Gomel region, Belarus)

Нилова

Бортновский

Тагай

et al. 2020

Radiac. gig. (2008)

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This paper is part of a research cycle focusing on studying the current levels of 241Am and 137Cs in soils and local foodstuffs of populated areas neighboring the Chernobyl exclusion zone. Our objective was to estimate the maximum annual committed internal doses to individuals of the Bragin-area settlements from inhalation and consumption of locally produced foods. We updated the data on the levels of 241Am and 137Сs in soils of 28 settlements of the district. Specific activity of 241Am in soils in two of the settlements were the highest of all; we took and analyzed samples of local-grown foodstuff. 241Am in food samples was measured via a radiochemical method with the use of selective chromatographic resins and alpha-spectrometry measurement. A gammaspectrometry technique was used to measure 241Am in soil and 137Сs in soil and food samples. The most contaminated by 241Am and 137Cs appeared the soils in the town of Bragin, the administrative center of the district where the respective levels were as high as 2.8 and 560 kBq/m2. Among the analyzed samples, the specific activities of 241Am in root and tuber crops were one-digit values, while the samples of leafy vegetables contained a few tens of mBq/kg of the same radionuclide. That said, however, 241Am concentrations in food samples were lower than those of 137Сs by three orders of magnitude. The results showed an apparent difference between estimated annual committed internal doses to the Bragin residents due to 241Am intake and that resulting from 137Сs with the respective 0.03 and 1.7 mSv/year. The maximum doses to population of the Bragin-district villages from inhalation of 241Am varied from 0.006 to 0.033 mSv/year exceeding the doses from inhaled 137Сs – 0.0002-0.002 mSv/year – by one order of magnitude. The major contribution to the public internal exposure today is 137Сs intake through consumption of contaminated food that produced locally; its contribution is about 93-99% of the total internal dose received by the Bragin-district residents.

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Assessment of committed doses received by agricultural workers in grain harvesting operations in the areas of radioactive contamination

Cited by 6 publications

References 1 publication

Modern environmental technologies of healthy soils contaminated by heavy metals and radionuclides

Modern environmental technologies of healthy soils contaminated by heavy metals and radionuclides

Exposure of the Biogas Station Operators Working With Contaminated Biomass

Assessment of the current levels of 241Am and 137Сs in soils and foodstuff, as well as of public internal exposure to ionizing radiation in populated areas adjacent to the Chernobyl NPP exclusion zone (case study: the Bragin district of the Gomel region, Belarus)

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