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COMPLEX RADIATION AND HYGIENIC MONITORING OF POPULATION ON RADIOLOGICALLY CONTAMINATED TERRITORIES OF ZHYTOMYR OBLAST

V V Vasylenko1, M S Kuriata1, V V Morozov1

  • 1State Institution National Research Center for Radiation Medicine of the National Academy of Medical Sciences of Ukraine, 53 Yuriia Illienka St., Kyiv, 04050, Ukraine.

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|December 30, 2022
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Summary
This summary is machine-generated.

Internal radiation doses from consuming contaminated milk and wild mushrooms are the primary concern for residents in Zhytomyr oblast. These dietary factors significantly contribute to the annual effective radiation dose in this radiologically contaminated area.

Keywords:
comprehensive radiation and hygienic monitoringinternal radiation doseradiologically contaminated territorieswhole body counter; 137Cs and 90Sr content

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Area of Science:

  • Environmental Health
  • Radiation Hygiene
  • Nuclear Safety

Background:

  • Zhytomyr oblast remains a radiologically contaminated area following the Chornobyl Nuclear Power Plant accident.
  • Understanding current radiation dose formation factors is crucial for public health management.

Purpose of the Study:

  • To identify key factors contributing to radiation dose in the Zhytomyr oblast population in 2021.
  • To conduct complex radiation and hygienic monitoring in reference settlements.

Main Methods:

  • Radiation-hygienic monitoring in 10 selected settlements in Zhytomyr oblast.
  • Whole body counting for internal radiation dose assessment (n=645).
  • Radiochemical analysis of food samples (milk, vegetables, wild products) for 137Cs and 90Sr, and resident interviews on dietary habits.

Main Results:

  • Annual effective radiation doses in 2021 were primarily from internal sources, not exceeding 1.8 mSv/year for adults and 0.5 mSv/year for children.
  • These doses were below the radiologically contaminated territories (RCT) criterion of 1 mSv/year.
  • Cesium-137 (137Cs) intake via milk and wild mushrooms was identified as a key factor for internal radiation dose.

Conclusions:

  • Dietary intake of 137Cs from milk and wild mushrooms is the main contributor to internal radiation doses in the studied population.
  • Continued monitoring of dietary habits and food contamination is essential for managing radiation risks in Zhytomyr oblast.