This paper presents the results of complex radioecological monitoring of the territories, which are situated near the Semipalatinsk Nuclear Test Site, East Kazakhstan region. The radiometric measurements showed that the concentration of radon and beta particles are below the permissible levels. EROA values of a radon in rooms fluctuates from 44 Bq/m3 to 195 Bq/ m3. The measured values of fluency of betta-particles in all the studied points are less than 10 freq/ min*cm2. A specific activity of radionuclides, such as Am-241, Cs-137 and Pu – 239/240 in soils, plant, water, meat and milk were evaluated.
This article presents the results of the migration of radionuclides along the soil-water-feed-animal livestock chain in the adjacent territories of the former Semipalatinsk nuclear test site (SNTS). To analyze the radio ecological situation in the territory adjacent to the SNTS, 6 stationary control points were created, from which samples of soil, water, vegetation, and animal products were taken. The radiometric method was used to determine the radioactive background of the studied areas. Gamma-, alpha-spectrometry methods were used to study the content of radionuclides. The radionuclide transfer along the soil-water-feed-animal livestock chain was determined by a calculation method and also veterinary and sanitary examination of the beef selected from these items. The research results show that in all the test points under study the EDR values, the beta-particles flux density is below the limit of permissible values. The samples detected radionuclides as Am-241, Cs-137 and Pu-239/240 not exceeding the standards established by the Hygienic standards of the Republic of Kazakhstan. The chain of radionuclides was transferred to animal products. The organoleptic assessment of the quality of cattle meat showed that inconsistencies are observed: a slight increase in lymph nodes, muddy broth, and surface moisture of muscle.
The territory of the Semipalatinsk Nuclear Test Site represents vast areas of grassy steppes, their use as pastures seems promising. The purpose of work was to compare beef samples obtained from settlements belonging to different categories of radiation risk: Kokpekty village, Chagan urban‐type settlement, Krivinka village, Sarzhal village, three samples were examined from each settlement. Organoleptic analysis, radiometric determination of 137Cs, was used as criteria. Also, an analysis of the amino acid composition by the high‐performance liquid chromatograph method was carried out and a calculation of protein indicators was made: meat tenderness, amino acid usefulness, nutrition value. The organoleptic examination showed the compliance of all samples with the standards, with the exception of one sample from the Sarzhal village. The study of the specific activity of 137Cs showed a direct correlation between the category of radiation risk and the content of this radioisotope in meat from different zones. The availability of some deviations in the samples indicators obtained from the Sarzhal village indicates the need to approach the products control from this zone more carefully, and radioisotope analysis should become a decisive criterion in determining the safety profile of the product.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.