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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zdor</journal-id><journal-title-group><journal-title xml:lang="ru">Проблемы здоровья и экологии</journal-title><trans-title-group xml:lang="en"><trans-title>Health and Ecology Issues</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-0967</issn><issn pub-type="epub">2708-6011</issn><publisher><publisher-name>Gomel State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51523/2708-6011.2024-21-2-15</article-id><article-id custom-type="elpub" pub-id-type="custom">zdor-2711</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОБЩЕСТВЕННОЕ ЗДОРОВЬЕ И ЗДРАВООХРАНЕНИЕ, ГИГИЕНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PUBLIC HEALTH AND HEALTH CARE, HYGIENE</subject></subj-group></article-categories><title-group><article-title>137Cs и 241Am  на территории Наровлянского района Гомельской области: оценка радиоэкологической обстановки в ситуации существующего облучения</article-title><trans-title-group xml:lang="en"><trans-title>137Cs и 241Am in Narovlya District of Belarus: Updated Radiological Assessment of the Local Existing Exposure Situation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9279-3698</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бортновский</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bortnovsky</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бортновский Владимир Николаевич, к.м.н., доцент, заведующий кафедрой экологической и профилактической медицины</p><p>г. Гомель</p></bio><bio xml:lang="en"><p>Vladimir N. Bortnovsky, Candidate of Medical Sciences, Associate Professor, Head of the Department of Ecology and Prophylactic Medicine</p><p>Gomel</p></bio><email xlink:type="simple">kafog2@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9221-269X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нилова</surname><given-names>Е. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Nilova</surname><given-names>E. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нилова Екатерина Константиновна, к.б.н., заведующий отделом по радиационной безопасности</p><p>г. Минск</p></bio><bio xml:lang="en"><p>Ekaterina K. Nilova, Candidate of Biological Sciences, Head of the Department of Radiation Safety</p><p>Minsk</p></bio><email xlink:type="simple">k_nilova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4227-2832</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калиниченко</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalinichenko</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Калиниченко Сергей Александрович, к.б.н., доцент, заведующий отделом спектрометрии и радиохимии</p><p>г. Хойники</p></bio><bio xml:lang="en"><p>Sergey A. Kalinichenko, Candidate of Biological Sciences, Associate Professor, Head of the Department of Spectrometry and Radiochemistry</p><p>Khoiniki</p><p> </p></bio><email xlink:type="simple">s-a-k@list.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8387-1095</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тагай</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tagai</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тагай Светлана Алексеевна, старший научный сотрудник</p><p>г. Хойники</p></bio><bio xml:lang="en"><p>Svetlana A. Tagai, Senior Researcher</p><p>Khoiniki</p></bio><email xlink:type="simple">lanabuz@tut.by</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гомельский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Gomel State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центр по ядерной и радиационной безопасности</institution></aff><aff xml:lang="en"><institution>Center for Nuclear and Radiation Safety</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Полесский государственный радиационно-экологический заповедник</institution></aff><aff xml:lang="en"><institution>Polesie State Radiation-Ecological Reserve</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>27</day><month>05</month><year>2024</year></pub-date><volume>21</volume><issue>2</issue><fpage>128</fpage><lpage>136</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бортновский В.Н., Нилова Е.К., Калиниченко С.А., Тагай С.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Бортновский В.Н., Нилова Е.К., Калиниченко С.А., Тагай С.А.</copyright-holder><copyright-holder xml:lang="en">Bortnovsky V.N., Nilova E.K., Kalinichenko S.A., Tagai S.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://journal.gsmu.by/jour/article/view/2711">https://journal.gsmu.by/jour/article/view/2711</self-uri><abstract><sec><title>Цель исследований</title><p>Цель исследований. Провести оценку содержания 137Сs и 241Am на территории Наровлянского района Гомельской области, прилегающей к Полесскому государственному радиационно-экологическому заповеднику.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Определение 241Am в продуктах выполнялось радиохимическим методом с альфа-спектрометрической регистрацией. Измерение содержания 241Am в почве, 137Сs  в почве и продуктах выполнялось гамма-спектрометрическим методом. Исследование проведено на территории 113 приусадебных участковв 32 пунктах проживания населения Наровлянского района.</p></sec><sec><title>Результаты</title><p>Результаты. Удельная активность 241Am в почве приусадебных участков в Наровлянском районе не превышала 10 Бк/кг, 137Сs — варьировала от 230 до 2770 Бк/кг. В пробах продуктов питания содержание 241Am находилось на уровне единиц или десятков миллибеккерелей в 1 кг продукта, 137Cs — в диапазоне 3–160 Бк/кг. Присутствие 241Am в продуктах питания местного производства может обусловить не более 0,1 % в суммарной дозе внутреннего облучения от 241Am и 137Сs, при этом ингаляционный путь поступления 241Am в суммарную дозу внутреннего облучения населения может составлять до 3 %. Посредством перорального пути поступления 137Сs формируется 97–100 % ожидаемой суммарной дозы внутреннего облучения жителей района.</p></sec><sec><title>Заключение</title><p>Заключение. На современном этапе постчернобыльского периода, в ситуации существующего облучения доминирует пероральный путь поступления 137Сs с продуктами местного производства, что может обусловить более 97 % суммарной дозы внутреннего облучения жителей Наровлянского района. Учитывая, что вклад 241Am в суммарную дозу внутреннего облучения населения может составлять до 3 %, рекомендовано ограничение работ с наибольшим пылеобразованием на сухой загрязненной радионуклидами почве для сокращения поступления альфа-излучающих радионуклидов путем ингаляции.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. To provide an assessment of 137Cs and 241Am levels in Narovlya district of the Gomel region adjacent to the Polesie State Radiation-Ecological Reserve</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The data on soil and food contamination is obtained for 113 private backyards locatedin 32 villages of the Narovlya district. A gamma-spectrometry technique was used to measure 241Am in soil and 137Сs in soil and food samples. 241Am in food samples was measured via a radiochemical method with the use of alpha-spectrometry measurement.</p></sec><sec><title>Results</title><p>Results. The values of specific activity of radionuclides in the soil of all sites range from 230 to 2770 Bq/kg for 137Сs and do not exceed 10 Bq/kg for 241Am. The specific activities of 137Cs in food samples range from 3 to 160 Bq/kg, and the values of 241Am concentration stay within units or tens of millibecquerels per 1 kilo of a product. The estimates show that, considering the present-time 241Am contamination of locally produced foods, its share in the total internal radiation dose is not likely to be higher than 0.1% from both radionuclides, 137Сs and 241Am. However, inhalation of 241Am can increase its share in the total internal dose up to 3%. Consumption of 137Сs-contaminated foodstuffs may potentially cause 97 to 100% of the total internal radiation dose in the district.</p></sec><sec><title>Conclusion</title><p>Conclusion. At the present stage of the radioecological context in the existing exposure situation the major contribution to the public internal exposure is 137Сs intake through consumption of contaminated food that produced locally; its contribution is more than 97% of the total internal dose received by the Narovlya district residents. It is recommended to minimize any type of fieldworks on the dry and dusty soils that can cause excessive inhalation of the alpha-emitting 241Am.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>241Am</kwd><kwd>137Cs</kwd><kwd>плотность загрязнения почвы</kwd><kwd>удельная активность</kwd><kwd>ингаляционное поступление</kwd><kwd>доза внутреннего облучения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Caesium-137</kwd><kwd>Americium-241</kwd><kwd>deposition density</kwd><kwd>specific activity</kwd><kwd>inhalation</kwd><kwd>internal exposure</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках научного раздела Государственной программы по преодолению последствий катастрофы на Чернобыльской АЭС на 2011 - 2015 годы и на период до 2020 года.</funding-statement><funding-statement xml:lang="en">The study was performed in the framework of the scientific support section of the State Programme on Overcoming the Consequences of the Chernobyl NPP Accident for 2011-2015 and until 2020.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Атлас современных и прогнозных аспектов последствий аварии на Чернобыльской АЭС на пострадавших территориях России и Беларуси (АСПА Россия-Беларусь). 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