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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">radhyd</journal-id><journal-title-group><journal-title xml:lang="ru">Радиационная гигиена</journal-title><trans-title-group xml:lang="en"><trans-title>Radiatsionnaya Gygiena = Radiation Hygiene</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-426X</issn><issn pub-type="epub">2409-9082</issn><publisher><publisher-name>NIIRG</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21514/1998-426X-2023-16-1-40-51</article-id><article-id custom-type="elpub" pub-id-type="custom">radhyd-933</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>Научные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Scientific articles</subject></subj-group></article-categories><title-group><article-title>Радиационная обстановка в молодом сосновом лесу, выросшем после Чернобыльской аварии</article-title><trans-title-group xml:lang="en"><trans-title>Radiological situation in the young pine forest that grew after the Chernobyl accident</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рамзаев</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Ramzaev</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рамзаев Валерий Павлович – кандидат медицинских наук, ведущий научный сотрудник лаборатории внешнего облучения</p><p>197101, Россия, Санкт-Петербург, ул. Мира, д. 8</p></bio><bio xml:lang="en"><p>Valery P. Ramzaev – Candidate of Medical Sciences, Leading Researcher of the Laboratory of External Exposure</p><p>Mira Str., 8, Saint-Petersburg, 197101, Russia</p></bio><email xlink:type="simple">V.Ramzaev@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Барковский</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Barkovsky</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Барковский Анатолий Николаевич – руководитель Федерального радиологического центра, главный научный сотрудник</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Anatoly N. Barkovsky – Head of the Federal Radiological Centre</p><p>Saint-Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Варфоломеева</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Varfolomeeva</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Варфоломеева Ксения Владимировна – младший научный сотрудник лаборатории экологии</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Kseniya V. Varfolomeeva – Junior Researcher of the Laboratory of Ecology</p><p>Saint-Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Некрасов</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nekrasov</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Некрасов Владислав Аркадьевич – младший научный сотрудник лаборатории внешнего облучения</p><p>Санкт-Петербург</p></bio><bio xml:lang="en"><p>Vladislav A. Nekrasov – Junior Researcher of the Laboratory of External Exposure</p><p>Saint-Petersburg</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский научно-исследовательский институт радиационной гигиены имени профессора П.В. Рамзаева, Федеральная служба по надзору в сфере защиты прав потребителей и благополучия&#13;
человека</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Санкт-Петербургский научно-исследовательский институт радиационной гигиены имени профессора П.В. Рамзаева, Федеральная служба по надзору в сфере защиты прав потребителей и благополучия</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg Research Institute of Radiation Hygiene after Professor P.V. Ramzaev, Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>04</day><month>04</month><year>2023</year></pub-date><volume>16</volume><issue>1</issue><fpage>40</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рамзаев В.П., Барковский А.Н., Варфоломеева К.В., Некрасов В.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Рамзаев В.П., Барковский А.Н., Варфоломеева К.В., Некрасов В.А.</copyright-holder><copyright-holder xml:lang="en">Ramzaev V.P., Barkovsky A.N., Varfolomeeva K.V., Nekrasov V.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://www.radhyg.ru/jour/article/view/933">https://www.radhyg.ru/jour/article/view/933</self-uri><abstract><p>После Чернобыльской аварии в связи с существенным радиоактивным загрязнением сельскохозяйственных угодий определенную долю таких земель пришлось вывести из сферы обычного использования. В настоящее время одной из рассматриваемых опций возвращения заброшенных сельскохозяйственных земель в хозяйственный оборот в России является лесоводство. При использовании бывших земель сельскохозяйственного назначения для лесоводства на радиоактивно загрязненных территориях важно иметь представление о потенциальных дозах облучения, которые формируются в этом случае у работников лесного хозяйства и населения. Целью настоящего исследования являлась оценка радиационной обстановки в молодом сосновом лесу, посаженном и выросшем после Чернобыльской аварии в зоне отселения на бывшем пахотном поле. Для сравнения был взят рядом расположенный старый сосновый лес, выросший до Чернобыльской аварии. Изучение радиационной обстановки проводили в период 1998–2022 гг. В молодом лесу 137Cs в верхнем 20-сантиметровом слое почвы был распределен довольно равномерно; далее с глубиной удельная активность 137Cs резко снижалась. В старом лесу максимум удельной активности 137Cs в почве во все годы был зарегистрирован в самом верхнем слое 0–2 см. С глубиной удельная активность 137Cs уменьшалась. В 1998 г. в молодом лесу, по сравнению со старым лесом, среднее значение мощности поглощенной дозы в воздухе от 137Cs было в 3 раза меньше, что связано с различиями в вертикальном распределении 137Cs в почве. Со временем мощность поглощенной дозы в воздухе от 137Cs на обоих участках снижалась с одинаковым эффективным периодом полууменьшения, равным 21,7 года. Удельная активность 137Cs в биоте (сосна, съедобные грибы) в молодом лесу, по сравнению со старым лесом, была в 4–30 раз меньше. Компонент эффективной дозы внешнего облучения взрослого человека от источника 137Cs в молодом лесу был в 3 раза меньше, чем таковой в старом лесу. Оцененный компонент эффективной дозы внутреннего облучения от 137Cs при потреблении съедобных грибов из молодого леса по сравнению со старым был в 10 раз меньше. В целом, выполненное исследование показывает, что использование заброшенных радиоактивно-загрязненных пахотных земель для лесоводства может оказаться весьма целесообразным и оправданным с радиологической точки зрения.</p></abstract><trans-abstract xml:lang="en"><p>After the Chernobyl accident, a certain proportion of agricultural land was withdrawn from normal use due to significant radioactive contamination. Forestry is one of the options currently under consideration to return the abandoned agricultural land to economic circulation in Russia. When using former agricultural land for forestry in radioactively contaminated areas, it is important to have an assessment of the potential radiation doses for forestry workers and the public. The aim of this study was to assess the radiological situation in a young pine forest planted and grown after the Chernobyl accident in the resettlement zone on a former arable field. A nearby old pine forest, which had grown before the Chernobyl accident, was taken for comparison. The study of the radiological situation was performed in the period 1998–2022. In the young forest, 137Cs was fairly evenly distributed in the upper 20 cm soil layer; further with depth, the activity concentration of 137Cs sharply decreased. In the old forest, the maximum activity concentration of 137Cs in the soil was in the top 0–2 cm layer. The activity concentration of 137Cs decreased with depth. In 1998, the average value of the absorbed dose rate in the air from 137Cs+134Cs was lower by a factor of 3 in the young forest compared to the old forest. The difference was associated with differences in the vertical distributions of 137Cs in the soil. Over time, the absorbed dose rate in air from 137Cs+134Cs decreased at both sites with the same effective halftime period of 21.7 year. The activity concentration of 137Cs in the biota (pine trees, edible mushrooms) in the young forest was lower by a factor of 4–30 compared to the old forest. The “forest” component of the external effective dose to adults from the 137Cs source in the young forest was lower by a factor of 3 compared to the old forest. The “forest” component of the internal effective dose from 137Cs was lower by a factor of 10 when eating edible mushrooms from the young forest compared to the old one. In general, the performed study shows that the use of radioactively contaminated abandoned arable land for forestry can be expedient and justified from a radiological point of view.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Чернобыльская авария</kwd><kwd>заброшенные земли сельскохозяйственного назначения</kwd><kwd>лесоводство</kwd><kwd>почва</kwd><kwd>сосна</kwd><kwd>грибы</kwd><kwd>эффективная доза</kwd><kwd>137Cs</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Chernobyl accident</kwd><kwd>abandoned agricultural land</kwd><kwd>forestry</kwd><kwd>soil</kwd><kwd>pine</kwd><kwd>mushrooms</kwd><kwd>effective dose</kwd><kwd>137Cs</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Environmental Consequences of the Chernobyl Accident and their Remediation: Twenty Years of Experience. Report of the Chernobyl Forum Expert Group ‘Environment’. 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