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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Ecology and Life Safety</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Ecology and Life Safety</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Экология и безопасность жизнедеятельности</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-2310</issn><issn publication-format="electronic">2408-8919</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">17186</article-id><article-id pub-id-type="doi">10.22363/2313-2310-2017-25-2-230-241</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">FACTORS OF ACCUMULATION AND DEPLETION OF HEAVY METALS AND METALLOIDS IN DANDELION LEAVES IN MOSCOW</article-title><trans-title-group xml:lang="ru"><trans-title>ФАКТОРЫ НАКОПЛЕНИЯ И РАССЕЯНИЯ ТЯЖЕЛЫХ МЕТАЛЛОВ И МЕТАЛЛОИДОВ В ЛИСТЬЯХ ОДУВАНЧИКА В МОСКВЕ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vlasov</surname><given-names>D V</given-names></name><name xml:lang="ru"><surname>Власов</surname><given-names>Д В</given-names></name></name-alternatives><bio xml:lang="en"><p>Vlasov Dmitriy Valentinovich - Candidate of Geographical Sciences, Research Associate, Department of Geochemistry of Landscapes and Geography of Soils, Faculty of Geography, Lomonosov Moscow State University.</p></bio><bio xml:lang="ru"><p>Власов Дмитрий Валентинович - кандидат географических наук, научный сотрудник кафедра геохимии ландшафтов и географии почв, географический факультет, Московский государственный университет имени М.В. Ломоносова.</p></bio><email>vlasgeo@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Lomonosov Moscow State University</institution></aff><aff><institution xml:lang="ru">Московский государственный университет им. М.В. Ломоносова</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2017</year></pub-date><volume>25</volume><issue>2</issue><issue-title xml:lang="en">VOL 25, NO2 (2017)</issue-title><issue-title xml:lang="ru">ТОМ 25, №2 (2017)</issue-title><fpage>230</fpage><lpage>241</lpage><history><date date-type="received" iso-8601-date="2017-10-25"><day>25</day><month>10</month><year>2017</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, Vlasov D.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, Власов Д.В.</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="en">Vlasov D.V.</copyright-holder><copyright-holder xml:lang="ru">Власов Д.В.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/ecology/article/view/17186">https://journals.rudn.ru/ecology/article/view/17186</self-uri><abstract xml:lang="en"><p>The aim of the study is to evaluate the landscape and technogenic factors of the formation of biogeochemical anomalies of As, Cd, Cu, Fe, Mn, Mo, Pb, Sb and Zn in the leaves of dandelion (Taraxacum officinale). The plants of the municipal districts of Sokolinaya Gora, Perovo, Ivanovo, Novogireevo, Veshnyaki, Novokosino and Kosino-Ukhtomsky of the Eastern Administrative District of Moscow were studied. Concentrations of heavy metals and metalloids (HM) in washed plant samples were determined by atomic absorption method. The biogeochemical specialization of dandelion leaves in the city relatively to the background landscapes is following: Mo13,5Cd4,8Pb4,5Fe4,5As3,5Sb3,0Cu1,3. Technogenic and landscape factors of accumulation and depletion of HM in leaves are determined by tree-based models in the SPLUS software. The most significant factors are the physical and chemical properties of soils. However some other landscape factors could also influence, for example soil flooding for Pb, landscape and geochemical position for Mn, Fe. Technogenic factors that could influence on HM distribution are functional zoning (Cu, Cd, Zn), atmospheric deposition of HM - Fe, Cd, Mo, vehicle emissions - Pb, Fe.</p></abstract><trans-abstract xml:lang="ru"><p>Цель исследования - впервые для восточной части Москвы оценить ландшафтные и техногенные факторы формирования биогеохимических аномалий As, Cd, Cu, Fe, Mn, Mo, Pb, Sb, Zn в листьях одуванчика лекарственного (Taraxacum officinale). Изучались растения муниципальных районов Соколиная гора, Перово, Ивановское, Новогиреево, Вешняки, Новокосино и Косино-Ухтомский Восточного административного округа Москвы. Концентрации тяжелых металлов и металлоидов (ТМ) в отмытых растительных пробах определялись атомной абсорбцией. Биогеохимическая специализация листьев одуванчика в городе относительно фона имеет вид Mo13,5Cd4,8Pb4,5Fe4,5As3,5Sb3,0Cu1,3. Техногенные и ландшафтные факторы накопления и рассеяния ТМ в листьях определены путем построения в пакете SPLUS регрессионных деревьев. Наиболее значимые факторы - физико-химические свойства почв. Также оказывают влияние другие ландшафтные (подтопление почв - на содержание Pb; ландшафтно-геохимическая позиция - Mn, Fe) и техногенные факторы (функциональная зона - Cu, Cd, Zn; выпадения элемента из атмосферы - Fe, Cd, Mo; выбросы автотранспорта - Pb, Fe).</p></trans-abstract><kwd-group xml:lang="en"><kwd>Taraxacum officinale</kwd><kwd>biogeochemistry</kwd><kwd>urban landscapes</kwd><kwd>Taraxacum officinale</kwd><kwd>regression analysis</kwd><kwd>tree-based models</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>биогеохимия</kwd><kwd>городские ландшафты</kwd><kwd>регрессионный анализ</kwd><kwd>дендрограммы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Kabata-Pendias A. Trace elements in soils and plants. 4th ed. Boca Raton (FL): CRC Press; 2011. 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