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Fallout Cs signals as chrono-markers in Chinese lake sediment cores.
Sci Total Environ
February 2025
School of Marine Sciences, Sun Yat-sen University, Zhuhai 519082, China. Electronic address:
This study comprehensively investigated the Cs signal in 294 sediment core samples from 132 lakes including reservoir and Gobi catchment in China. First, three Cs chrono-markers were observed: the 1963 peak corresponding to the maximum deposition of radioactive debris from global fallout, and two local sub-peaks corresponding to the time of the nuclear tests at Chinese Lop Nor site with a maximum in 1976, and to the Chernobyl accident in 1986. Second, the spatial distribution of sedimentation rates based on the 1963 Cs chrono-marker in Chinese lake sediment cores was studied.
View Article and Find Full Text PDFIs increased mutation driving genetic diversity in dogs within the Chornobyl exclusion zone?
PLoS One
December 2024
Department of Molecular Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States of America.
Environmental contamination can have lasting impacts on surrounding communities, though the long-term impacts can be difficult to ascertain. The disaster at the Chornobyl Nuclear Power Plant in 1986 and subsequent remediation efforts resulted in contamination of the local environment with radioactive material, heavy metals, and additional environmental toxicants. Many of these are mutagenic in nature, and the full effect of these exposures on local flora and fauna has yet to be understood.
View Article and Find Full Text PDFRELATIONSHIP OF THE PERCEIVED STRESS LEVEL, ANTHROPOMETRIC INDICATORS AND BODY COMPOSITION IN CHILDREN EXPERIENCING PERMANENT NEGATIVE IMPACT OF THE COVID-19 PANDEMIC AND THE WAR IN UKRAINE.
Probl Radiac Med Radiobiol
December 2024
National University of Physical Education and Sport of Ukraine, 1 Fizkultury Str., Kyiv, 03150, Ukraine.
Objective: to assess the impact of stressful life events occuring with the period of restrictive measures introductionconnected to the COVID-19 pandemic and during the full-scale Russian aggression, on the anthropometric indicators and body composition of children aged 10-17 years.
Materials And Methods: The research group consisted of 56 boys and 70 girls aged 10-17 years who lived in radioactively contaminated areas of Zhytomyr, Rivne, and Kyiv regions with a soil contamination density of 137Cs from 18 kBq/m2 to 235 kBq/m2. The impact of stressful factors was assessed using the stress perception scale (PSS-10).
SUPEROXIDE DISMUTASE (SOD2) GENE VAL16ALA POLYMORPHISM AND CHANGES IN THE VENTILATION LUNG CAPACITY OF CHILDREN - RESIDENTS OF RADIOACTIVELY CONTAMINATED TERRITORIES AND CHILDREN WHO HAVE BEEN AFFECTED BY STRESSFUL LIFE EVENTS DURING WARTIME.
Probl Radiac Med Radiobiol
December 2024
State Institution «National Scientific Center for Radiation Medicine, Hematology and Oncology of the National Academy of Medical Sciences of Ukraine», 53 Yuriia Illienka Str., Kyiv, 04050, Ukraine.
Objective: to determine the distribution of genotypes of genetic polymorphism of manganese superoxide dismutaseand to assess the ventilation lung capacity in children- residents of radioactively contaminated areas and childrenexposed to stressful life events during the war period.
Materials And Methods: The study involved school-age children - residents of radioactively contaminated areas(RCA) and children exposed to stressful life events during wartime. All those examined had no clinical signs of respiratory pathology.
METHODOLOGY OF RECONSTRUCTION OF INTERNAL DOSES FROM 137Cs AND 134Cs OF RESIDENTS OF RADIOACTIVELY CONTAMINATED SETTLEMENTS IN UKRAINE NOT COVERED BY WBC MONITORING.
Probl Radiac Med Radiobiol
December 2024
Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, 9609 Medical Center Drive, Bethesda, MD 20892, USA.
Objective: Scientific justification of the methodology for calculating radiation internal doses from 137Cs and 134Cs intake for residents of Ukrainian settlements radioactively contaminated as a result of the Chornobyl (Chernobyl) accident in which measurements of incorporated radiocesium isotopes in humans using whole-body counters (WBC) were not carried out.
Materials And Methods: The paper presents a new methodology for reconstructing doses due to internal irradiation from Chornobyl fallout for both surface (in 1986) and root (in 1987-2023) contamination of vegetation with 137Cs and 134Cs and their transfer into the human body. The methodology for calculating the dose due to surface contamination of vegetation was based on the theoretical model of the transfer of radiocesium isotopes through the food chain with further adjustment of this model to the results of WBC measurements carried out between 15 July and 31 December 1986.
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