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Monitoring of the content of technogenic radionuclides (Cs-137 and Sr-90) in foods is one of the key areas in ensuring radiation safety of the population, taking into account the current radiation situation. The greatest risk to health is food produced or imported from the territories that have been subjected to man-made radiation accidents. of the research was to assess the radiation risk caused by oral intake of radionuclides based on the study of the actual nutrition of the adult population and contamination of food with Cs-137 and Sr-90 radionuclides.

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Determination of Sr and Pb in food samples by liquid scintillation counting after sequential separation with an extraction chromatographic column.

Food Chem

August 2024

China CDC Key Laboratory of Radiological Protection and Nuclear Emergency, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China. Electronic address:

Sr and Pb are considered to be key radionuclides in internal exposure resulting from dietary intake, however, the established methods employed for their detection are time-comsuming. A method for the sequential separation of Sr and Pb using a Sr·spec resin by LSC measurement is developed, which is highly suitable for food safety monitoring as its minimal sample requirements. The sequential separation of Sr and Pb from the sample was using 0.

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Article Synopsis
  • Many residents of the Russian Southern Urals were exposed to significant radioactive pollution from the Mayak Production Association, notably through two major events: liquid waste discharges into the Techa River and a 1957 explosion at a waste-storage facility.
  • Over 30,000 individuals living near the Techa River were affected from 1950 to 1961, with the 1957 incident contaminating a larger area known as the East Urals Radioactive Trace (EURT).
  • Current studies utilize a Monte-Carlo dosimetry system to estimate individual radiation doses for over 48,000 people, revealing that internal exposures, particularly from dietary intake of 90Sr, contributed significantly to radiation doses in active
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Objective: the key factors identification in radiation dose formation in population of radiologically contaminatedareas of Zhytomyr oblast in the current period of accident through complex radiation and hygienic monitoring in reference settlements in 2021.

Materials And Methods: For complex radiationhygienic monitoring in Zhytomyr oblast, 10 settlements were chosen - Narodychi, Selets, Bazar, Rudnya Bazarska, Khrystynivka - zone 2, Motiyki, Zalissya, Davydky, Radcha, Nova Radcha - zone 3 of Narodychi district, in which the highest radiation doses were recorded after the accident at the Chornobyl Nuclear Power Plant. The research was carried out in June 2021.

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Clean feed as countermeasure to reduce the Sr and Cs levels in fish from contaminated lakes.

J Environ Radioact

March 2023

Center for Environmental Radioactivity (CERAD), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway; Ukrainian Institute of Agricultural Radiology (UIAR) of National University of Life and Environment Sciences of Ukraine, Kiev, Ukraine.

Glubokoye Lake situated within the Chernobyl Exclusion Zone is highly contaminated with respect to radioactive caesium and strontium isotopes, which also is reflected in the contaminated fish. To utilize the fish resources in contaminated lakes, the present work presents for the first time the effectiveness of using clean feed to counteract contamination of radionuclides in fish. The study is based on a series of repeated experiments with Prussian carp (Carassius gibelio (Bloch, 1782)) kept in cages in the contaminated Glubokoye Lake during summer 2018-2021.

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