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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">gesj</journal-id><journal-title-group><journal-title xml:lang="en">GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY</journal-title><trans-title-group xml:lang="ru"><trans-title>GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2071-9388</issn><issn pub-type="epub">2542-1565</issn><publisher><publisher-name>Russian Geographical Society</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24057/2071-9388-2022-023</article-id><article-id custom-type="elpub" pub-id-type="custom">gesj-2601</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="en"><subject>RESEARCH PAPER</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Radon Flux Density In Conditions Of Permafrost Thawing: Simulation Experiment</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Puchkov</surname><given-names>Andrey V.</given-names></name></name-alternatives><bio xml:lang="en"><p>109 Severnoj Dviny Emb., Arkhangelsk, 163000</p></bio><email xlink:type="simple">puchkov@fciarctic.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Berezina</surname><given-names>Elena V.</given-names></name></name-alternatives><bio xml:lang="en"><p>119017 Moscow, Russia</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Yakovlev</surname><given-names>Evgeny Yu.</given-names></name></name-alternatives><bio xml:lang="en"><p>109 Severnoj Dviny Emb., Arkhangelsk, 163000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Hasson</surname><given-names>Nicholas R.</given-names></name></name-alternatives><bio xml:lang="en"><p>1764 Tanana Loop, Fairbanks, AK 99775</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Druzhinin</surname><given-names>Sergey V.</given-names></name></name-alternatives><bio xml:lang="en"><p>109 Severnoj Dviny Emb., Arkhangelsk, 163000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Tyshov</surname><given-names>Alexey S.</given-names></name></name-alternatives><bio xml:lang="en"><p>109 Severnoj Dviny Emb., Arkhangelsk, 163000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Ushakova</surname><given-names>Ekaterina V.</given-names></name></name-alternatives><bio xml:lang="en"><p> 77 Politechnicheskaya street, Saratov, 410054</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Koshelev</surname><given-names>Lev S.</given-names></name></name-alternatives><bio xml:lang="en"><p>109 Severnoj Dviny Emb., Arkhangelsk, 163000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Lapikov</surname><given-names>Pavel I.</given-names></name></name-alternatives><bio xml:lang="en"><p>109 Severnoj Dviny Emb., Arkhangelsk, 163000</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>N. Laverov Federal Centre for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-2"><institution>A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-3"><institution>Water and Environmental Research Center, University of Alaska Fairbanks</institution><country>United States</country></aff><aff xml:lang="en" id="aff-4"><institution>Yuri Gagarin State Technical University of Saratov</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>04</day><month>10</month><year>2022</year></pub-date><volume>15</volume><issue>3</issue><fpage>5</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Puchkov A.V., Berezina E.V., Yakovlev E.Y., Hasson N.R., Druzhinin S.V., Tyshov A.S., Ushakova E.V., Koshelev L.S., Lapikov P.I., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Puchkov A.V., Berezina E.V., Yakovlev E.Y., Hasson N.R., Druzhinin S.V., Tyshov A.S., Ushakova E.V., Koshelev L.S., Lapikov P.I.</copyright-holder><copyright-holder xml:lang="en">Puchkov A.V., Berezina E.V., Yakovlev E.Y., Hasson N.R., Druzhinin S.V., Tyshov A.S., Ushakova E.V., Koshelev L.S., Lapikov P.I.</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://ges.rgo.ru/jour/article/view/2601">https://ges.rgo.ru/jour/article/view/2601</self-uri><abstract><p>This paper describes a five-month experiment (February – July 2021) measuring the gradual thaw diffusion of radon-222 (further in the article – radon) from a frozen environment in NW Russia (i.e. Arhangelsk region). Red clay substrate containting a high content of 226Ra filled the bottom insides of 200-liter barrel holding the source of radon and buried at 1.6 m depth (e.g., the radium source zone), then covered with native soil, filled with water and frozen under in-situ conditions. Radon measurements were carried out from soil surface above the container (disturbed soil layer) and at background location (undisturbed soil layer). Several periods of increased radon flux density were observed, which was related to radium source zone thawing. It was shown that in 1-2 days after thawing of the radium source zone and drying of the upper soil layer, the radon flux increases sharply – more than 8 times compared to background values. These results show a strong relationship between radon flux density and soil temperature profiles at different depths. The calculations of radon sourced from frozen and thawed zones show how temperature phase of substrate (e.g. clays) control the barrier influence of radon migration. It reduced them by 10-20 times (according to the results of a theoretical calculation), depending on the characteristics of frozen rocks (density, porosity). Thus, the barrier function of permafrost is related to the physical properties of ice and frozen rocks. These temperture phases controls radon emanation coefficients and significantly influences the migration of radon to the earth’s surface.</p></abstract><kwd-group xml:lang="en"><kwd>Radon hazard</kwd><kwd>permafrost</kwd><kwd>Arctic</kwd><kwd>climate warming</kwd><kwd>natural radioactivity</kwd><kwd>frozen soil</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported by the grant of the Russian Science Foundation No 20-77-10057, the grant of the Project Office For Arctic Development No. 245G dated 04/19/2021 and the grant of the Ministry of Science and Higher Education of Russia No 075-15-2021-934.</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">Afonin A., &amp; Korchunov A. (2013). Optimizing block parameters measurements for monitoring radon, thoron and their daughter products in various environments. ANRI, 1, 9-11. (in Russian).</mixed-citation><mixed-citation xml:lang="en">Afonin A., &amp; Korchunov A. (2013). Optimizing block parameters measurements for monitoring radon, thoron and their daughter products in various environments. ANRI, 1, 9-11. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Aparin B.F., &amp; Sukhacheva E.Yu. (2015). Urban soil classification in the system of Russian and international soil classification. Bulletin of the Soil Institute named after V.V. Dokuchaev, (79), 53-72. (in Russian).</mixed-citation><mixed-citation xml:lang="en">Aparin B.F., &amp; Sukhacheva E.Yu. (2015). Urban soil classification in the system of Russian and international soil classification. Bulletin of the Soil Institute named after V.V. Dokuchaev, (79), 53-72. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Arenson L., Colgan W., &amp; Marshall H.P. (2021). Physical, thermal, and mechanical properties of snow, ice, and permafrost. In Snow and ice- related hazards, risks, and disasters, 35-71, DOI: 10.1016/B978-0-12-817129-5.00007-X.</mixed-citation><mixed-citation xml:lang="en">Arenson L., Colgan W., &amp; Marshall H.P. (2021). Physical, thermal, and mechanical properties of snow, ice, and permafrost. In Snow and ice- related hazards, risks, and disasters, 35-71, DOI: 10.1016/B978-0-12-817129-5.00007-X.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Baskaran M. (2016). Radon: A tracer for geological, geophysical and geochemical studies (Vol. 367). Basel: Springer.</mixed-citation><mixed-citation xml:lang="en">Baskaran M. (2016). Radon: A tracer for geological, geophysical and geochemical studies (Vol. 367). Basel: Springer.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Biskaborn B.K., Smith S.L., Noetzli J., Matthes H., Vieira G., Streletskiy D.A., ... &amp; Lantuit H. (2019). Permafrost is warming at a global scale. Nature communications, 10(1), 1-11, DOI: 10.1038/s41467-018-08240-4.</mixed-citation><mixed-citation xml:lang="en">Biskaborn B.K., Smith S.L., Noetzli J., Matthes H., Vieira G., Streletskiy D.A., ... &amp; Lantuit H. (2019). Permafrost is warming at a global scale. Nature communications, 10(1), 1-11, DOI: 10.1038/s41467-018-08240-4.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Buldovicz S.N., Khilimonyuk V.Z., Bychkov A.Y.,Ospennikov E.N., Vorobyev S.A., Gunar A.Y.,... &amp; Amanzhurov R.M. (2018). Cryovolcanism on the earth: Origin of a spectacular crater in the Yamal Peninsula (Russia). Scientific reports, 8(1), 1-6, DOI: 10.1038/s41598-018-31858-9.</mixed-citation><mixed-citation xml:lang="en">Buldovicz S.N., Khilimonyuk V.Z., Bychkov A.Y.,Ospennikov E.N., Vorobyev S.A., Gunar A.Y.,... &amp; Amanzhurov R.M. (2018). Cryovolcanism on the earth: Origin of a spectacular crater in the Yamal Peninsula (Russia). Scientific reports, 8(1), 1-6, DOI: 10.1038/s41598-018-31858-9.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Canadian Environmental Law Association. (2014). Radon in indoor air: A review of policy and law in Canada.</mixed-citation><mixed-citation xml:lang="en">Canadian Environmental Law Association. (2014). Radon in indoor air: A review of policy and law in Canada.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Daraktchieva Z., Wasikiewicz J.M., Howarth C.B., &amp; Miller C.A. (2021). Study of baseline radon levels in the context of a shale gas development. Science of The Total Environment, 753, 141952, DOI: 10.1016/j.scitotenv.2020.141952.</mixed-citation><mixed-citation xml:lang="en">Daraktchieva Z., Wasikiewicz J.M., Howarth C.B., &amp; Miller C.A. (2021). Study of baseline radon levels in the context of a shale gas development. Science of The Total Environment, 753, 141952, DOI: 10.1016/j.scitotenv.2020.141952.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Egorov V.V., Ivanova E.N., Friedland V.M., &amp; Rozov N.I. (1977). Classification and diagnosis of soils of the USSR. (in Russian).</mixed-citation><mixed-citation xml:lang="en">Egorov V.V., Ivanova E.N., Friedland V.M., &amp; Rozov N.I. (1977). Classification and diagnosis of soils of the USSR. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Farquharson L.M., Romanovsky V.E., Cable W.L, Walker D.A., Kokelj S.V., Nicolsky D. (2019) Climate Change Drives Widespread and Rapid Thermokarst Development in Very Cold Permafrost in the Canadian High Arctic. Geophysical Research Letters, 46, 12, DOI: 10.1029/2019GL082187.</mixed-citation><mixed-citation xml:lang="en">Farquharson L.M., Romanovsky V.E., Cable W.L, Walker D.A., Kokelj S.V., Nicolsky D. (2019) Climate Change Drives Widespread and Rapid Thermokarst Development in Very Cold Permafrost in the Canadian High Arctic. Geophysical Research Letters, 46, 12, DOI: 10.1029/2019GL082187.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Field R.W. (2019). Radon: an overview of health effects.</mixed-citation><mixed-citation xml:lang="en">Field R.W. (2019). Radon: an overview of health effects.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Giustini F., Ciotoli G., Rinaldini A., Ruggiero L., &amp; Voltaggio M. (2019). Mapping the geogenic radon potential and radon risk by using Empirical Bayesian Kriging regression: A case study from a volcanic area of central Italy. Science of the Total Environment, 661, 449-464, DOI: 10.1016/j.scitotenv.2019.01.146.</mixed-citation><mixed-citation xml:lang="en">Giustini F., Ciotoli G., Rinaldini A., Ruggiero L., &amp; Voltaggio M. (2019). Mapping the geogenic radon potential and radon risk by using Empirical Bayesian Kriging regression: A case study from a volcanic area of central Italy. Science of the Total Environment, 661, 449-464, DOI: 10.1016/j.scitotenv.2019.01.146.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Glover P.W.J. (2006). Increased domestic radon exposure caused by permafrost thawing due to global climate change, EGU General Assembly, Vienna, Austria, 2-7 April. EGU06-A-01439.</mixed-citation><mixed-citation xml:lang="en">Glover P.W.J. (2006). Increased domestic radon exposure caused by permafrost thawing due to global climate change, EGU General Assembly, Vienna, Austria, 2-7 April. EGU06-A-01439.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Glover P.W.J., Blouin M. (2022). Increased Radon Exposure from Thawing of Permafrost Due to Climate Change. Earth's Future, 10, 2, DOI: 10.1029/2021EF002598.</mixed-citation><mixed-citation xml:lang="en">Glover P.W.J., Blouin M. (2022). Increased Radon Exposure from Thawing of Permafrost Due to Climate Change. Earth's Future, 10, 2, DOI: 10.1029/2021EF002598.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Glover P.W., &amp; Blouin M. (2007). Modelling increased soil radon emanation caused by instantaneous and gradual permafrost thawing due to global climate warming.</mixed-citation><mixed-citation xml:lang="en">Glover P.W., &amp; Blouin M. (2007). Modelling increased soil radon emanation caused by instantaneous and gradual permafrost thawing due to global climate warming.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">International atomic energy agency (IAEA) (2013). Measurement and Calculation of Radon Releases from NORM Residues. Technical Reports Series, 474. IAEA, Austria.</mixed-citation><mixed-citation xml:lang="en">International atomic energy agency (IAEA) (2013). Measurement and Calculation of Radon Releases from NORM Residues. Technical Reports Series, 474. IAEA, Austria.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Jensen M.A., Demidov I.N., Larsen E., &amp; Lysa A. (2009). Quaternary palaeoenvironments and multi-storey valley fill architecture along the Mezen and Severnaya Dvina river valleys, Arkhangelsk region, NW Russia. Quaternary Science Reviews, 28(23-24), 2489-2506, DOI: 10.1016/j. quascirev.2009.05.009.</mixed-citation><mixed-citation xml:lang="en">Jensen M.A., Demidov I.N., Larsen E., &amp; Lysa A. (2009). Quaternary palaeoenvironments and multi-storey valley fill architecture along the Mezen and Severnaya Dvina river valleys, Arkhangelsk region, NW Russia. Quaternary Science Reviews, 28(23-24), 2489-2506, DOI: 10.1016/j. quascirev.2009.05.009.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Ji M., Kong W., Liang C., Zhou T., Jia H., &amp; Dong X. (2020). Permafrost thawing exhibits a greater influence on bacterial richness and community structure than permafrost age in Arctic permafrost soils. The Cryosphere, 14(11), 3907-3916, DOI: 10.5194/tc-14-3907-2020.</mixed-citation><mixed-citation xml:lang="en">Ji M., Kong W., Liang C., Zhou T., Jia H., &amp; Dong X. (2020). Permafrost thawing exhibits a greater influence on bacterial richness and community structure than permafrost age in Arctic permafrost soils. The Cryosphere, 14(11), 3907-3916, DOI: 10.5194/tc-14-3907-2020.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Karabanov A., Zhuk I., Yaroshevich O., Konopelko M., Lukashevich J., &amp; Vasilevsky L. (2013). Radon: health, danger, and protective measures. Science and Innovation, 4(122). (in Russian).</mixed-citation><mixed-citation xml:lang="en">Karabanov A., Zhuk I., Yaroshevich O., Konopelko M., Lukashevich J., &amp; Vasilevsky L. (2013). Radon: health, danger, and protective measures. Science and Innovation, 4(122). (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Klimshin A.V., Kozlova I.A., Rybakov E.N., Lukovskoy M.Yu. (2010). Effect of freezing the surface layer of soil on the radon transport. Vestnik Kamchatskoy regional'noy assotsiatsii «Uchebno-nauchnyy tsentr». Seriya: Nauki o Zemle, 16(2), 146-151. (in Russian with English summary).</mixed-citation><mixed-citation xml:lang="en">Klimshin A.V., Kozlova I.A., Rybakov E.N., Lukovskoy M.Yu. (2010). Effect of freezing the surface layer of soil on the radon transport. Vestnik Kamchatskoy regional'noy assotsiatsii «Uchebno-nauchnyy tsentr». Seriya: Nauki o Zemle, 16(2), 146-151. (in Russian with English summary).</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Koptev D.P. (2020). Norilsk spill: lessons and consequences. Drilling and Oil, (7-8), 3-9. (in Russian with English summary).</mixed-citation><mixed-citation xml:lang="en">Koptev D.P. (2020). Norilsk spill: lessons and consequences. Drilling and Oil, (7-8), 3-9. (in Russian with English summary).</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Lorenzo-Gonzalez M., Ruano-Ravina A., Torres-Duran M., Kelsey K.T., Provencio M., Parente-Lamelas I., ... &amp; Barros-Dios J.M. (2020). Lung cancer risk and residential radon exposure: A pooling of case-control studies in northwestern Spain. Environmental Research, 189, 109968, DOI: 10.1016/j.envres.2020.109968</mixed-citation><mixed-citation xml:lang="en">Lorenzo-Gonzalez M., Ruano-Ravina A., Torres-Duran M., Kelsey K.T., Provencio M., Parente-Lamelas I., ... &amp; Barros-Dios J.M. (2020). Lung cancer risk and residential radon exposure: A pooling of case-control studies in northwestern Spain. Environmental Research, 189, 109968, DOI: 10.1016/j.envres.2020.109968</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Maier A., Wiedemann J., Rapp F., PapenfuB F., Rodel F., Hehlgans S., ... &amp; Frey B. (2021). Radon Exposure—Therapeutic Effect and Cancer Risk. International Journal of Molecular Sciences, 22(1), 316, DOI: 10.3390/ijms22010316.</mixed-citation><mixed-citation xml:lang="en">Maier A., Wiedemann J., Rapp F., PapenfuB F., Rodel F., Hehlgans S., ... &amp; Frey B. (2021). Radon Exposure—Therapeutic Effect and Cancer Risk. International Journal of Molecular Sciences, 22(1), 316, DOI: 10.3390/ijms22010316.</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Marenniy A.M., Tsapalov A.A., Miklyaev P.S., Petrova T.B. (2016) Regularities Formation of a Radon Field in the Geological Environment. Pero Publishing House. (in Russian).</mixed-citation><mixed-citation xml:lang="en">Marenniy A.M., Tsapalov A.A., Miklyaev P.S., Petrova T.B. (2016) Regularities Formation of a Radon Field in the Geological Environment. Pero Publishing House. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Melnichenko N.A., Tyuveev A.V., Lazaryuk A.Yu, Kustova E.V., &amp; Abramov A.S. (2021). Porosity, permeability and structure of sea ice in Novik Bay (Russkiy Island) according to hydrological measurements, MRI and CT. Bulletin of the Far Eastern Branch of the Russian Academy of Sciences, 1(215), 49-57. (in Russian with English summary).</mixed-citation><mixed-citation xml:lang="en">Melnichenko N.A., Tyuveev A.V., Lazaryuk A.Yu, Kustova E.V., &amp; Abramov A.S. (2021). Porosity, permeability and structure of sea ice in Novik Bay (Russkiy Island) according to hydrological measurements, MRI and CT. Bulletin of the Far Eastern Branch of the Russian Academy of Sciences, 1(215), 49-57. (in Russian with English summary).</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Miklyaev P.S., Petrova T.B. (2011) Studies of radon emanation from clays. Water Resources, 38, 868-875, DOI: 10.1134/S0097807811070116.</mixed-citation><mixed-citation xml:lang="en">Miklyaev P.S., Petrova T.B. (2011) Studies of radon emanation from clays. Water Resources, 38, 868-875, DOI: 10.1134/S0097807811070116.</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Nazintsev Y.L., Panov V.V. (2000). Phase composition and thermophysical characteristics of sea ice. St. Petersburg: Gidrometeoizdat. (in Russian).</mixed-citation><mixed-citation xml:lang="en">Nazintsev Y.L., Panov V.V. (2000). Phase composition and thermophysical characteristics of sea ice. St. Petersburg: Gidrometeoizdat. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Nenakhova E.V., &amp; Makarov O.A. (2006). Radon and the health of the population. Acta Biomedica Scientifica, (6). (in Russian with English summary).</mixed-citation><mixed-citation xml:lang="en">Nenakhova E.V., &amp; Makarov O.A. (2006). Radon and the health of the population. Acta Biomedica Scientifica, (6). (in Russian with English summary).</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Obu J., Westermann S., Bartsch A., Berdnikov N., Christiansen H.H., Dashtseren A., ... &amp; Zou D. (2019). Northern Hemisphere permafrost map based on TTOP modelling for 2000-2016 at 1 km2 scale. Earth-Science Reviews, 193, 299-316, DOI: 10.1016/j.earscirev.2019.04.023.</mixed-citation><mixed-citation xml:lang="en">Obu J., Westermann S., Bartsch A., Berdnikov N., Christiansen H.H., Dashtseren A., ... &amp; Zou D. (2019). Northern Hemisphere permafrost map based on TTOP modelling for 2000-2016 at 1 km2 scale. Earth-Science Reviews, 193, 299-316, DOI: 10.1016/j.earscirev.2019.04.023.</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Payandi-Rolland D., Shirokova L.S., Labonne F., Benezeth P, &amp; Pokrovsky O.S. (2021). Impact of freeze-thaw cycles on organic carbon and metals in waters of permafrost peatlands. Chemosphere, 279, 130510, DOI: 10.1016/j.chemosphere.2021.130510.</mixed-citation><mixed-citation xml:lang="en">Payandi-Rolland D., Shirokova L.S., Labonne F., Benezeth P, &amp; Pokrovsky O.S. (2021). Impact of freeze-thaw cycles on organic carbon and metals in waters of permafrost peatlands. Chemosphere, 279, 130510, DOI: 10.1016/j.chemosphere.2021.130510.</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Pereira A., Lamas R., Miranda M., Domingos F., Neves L., Ferreira N., &amp; Costa L. (2017). Estimation of the radon production rate in granite rocks and evaluation of the implications for geogenic radon potential maps: A case study in Central Portugal. Journal of environmental radioactivity, 166, 270-277, DOI: 10.1016/j.jenvrad.2016.08.022.</mixed-citation><mixed-citation xml:lang="en">Pereira A., Lamas R., Miranda M., Domingos F., Neves L., Ferreira N., &amp; Costa L. (2017). Estimation of the radon production rate in granite rocks and evaluation of the implications for geogenic radon potential maps: A case study in Central Portugal. Journal of environmental radioactivity, 166, 270-277, DOI: 10.1016/j.jenvrad.2016.08.022.</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Petrova T., &amp; Miklyaev P. (2020). Variations of Indoor Radon Concentration in Traditional Russian Rural Wooden Houses. Radiation Protection Dosimetry, 191(2), 219-222, DOI: 10.1093/rpd/ncaa156.</mixed-citation><mixed-citation xml:lang="en">Petrova T., &amp; Miklyaev P. (2020). Variations of Indoor Radon Concentration in Traditional Russian Rural Wooden Houses. Radiation Protection Dosimetry, 191(2), 219-222, DOI: 10.1093/rpd/ncaa156.</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Pokrovsky O.S., Manasypov R.M., Pavlova O.A., Shirokova L.S., &amp; Vorobyev S.N. (2022). Carbon, nutrient and metal controls on phytoplankton concentration and biodiversity in thermokarst lakes of latitudinal gradient from isolated to continuous permafrost. Science of The Total Environment, 806, 151250, DOI: 10.1016/j.scitotenv.2021.151250.</mixed-citation><mixed-citation xml:lang="en">Pokrovsky O.S., Manasypov R.M., Pavlova O.A., Shirokova L.S., &amp; Vorobyev S.N. (2022). Carbon, nutrient and metal controls on phytoplankton concentration and biodiversity in thermokarst lakes of latitudinal gradient from isolated to continuous permafrost. Science of The Total Environment, 806, 151250, DOI: 10.1016/j.scitotenv.2021.151250.</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Puchkov A.V., Yakovlev E.Y., Hasson N., Sobrinho G.A., Tsykareva Y.V., Tyshov A.S., ... &amp; Ushakova E.V. (2021). Radon hazard in permafrost conditions: Current state of research. Geogr. Environ. Sustain, DOI: 10.24057/2071-9388-2021-037.</mixed-citation><mixed-citation xml:lang="en">Puchkov A.V., Yakovlev E.Y., Hasson N., Sobrinho G.A., Tsykareva Y.V., Tyshov A.S., ... &amp; Ushakova E.V. (2021). Radon hazard in permafrost conditions: Current state of research. Geogr. Environ. Sustain, DOI: 10.24057/2071-9388-2021-037.</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Rodriguez-Martinez A., Torres-Duran M., Barros-Dios J.M., &amp; Ruano-Ravina A. (2018). Residential radon and small cell lung cancer. A systematic review. Cancer letters, 426, 57-62, DOI: 10.1016/j.canlet.2018.04.003.</mixed-citation><mixed-citation xml:lang="en">Rodriguez-Martinez A., Torres-Duran M., Barros-Dios J.M., &amp; Ruano-Ravina A. (2018). Residential radon and small cell lung cancer. A systematic review. Cancer letters, 426, 57-62, DOI: 10.1016/j.canlet.2018.04.003.</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Rosenberger A., Hung R.J., Christiani D.C., Caporaso N.E., Liu G., Bojesen S.E., ... &amp; Gomolka M. (2018). Genetic modifiers of radon-induced lung cancer risk: a genome-wide interaction study in former uranium miners. International archives of occupational and environmental health, 91(8), 937-950, DOI:10.1007/s00420-018-1334-3.</mixed-citation><mixed-citation xml:lang="en">Rosenberger A., Hung R.J., Christiani D.C., Caporaso N.E., Liu G., Bojesen S.E., ... &amp; Gomolka M. (2018). Genetic modifiers of radon-induced lung cancer risk: a genome-wide interaction study in former uranium miners. International archives of occupational and environmental health, 91(8), 937-950, DOI:10.1007/s00420-018-1334-3.</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Rossiter D.G. (2007). Classification of urban and industrial soils in the world reference base for soil resources (5 pp). Journal of Soils and Sediments, 7(2), 96-100, DOI: 10.1065/jss2007.02.208.</mixed-citation><mixed-citation xml:lang="en">Rossiter D.G. (2007). Classification of urban and industrial soils in the world reference base for soil resources (5 pp). Journal of Soils and Sediments, 7(2), 96-100, DOI: 10.1065/jss2007.02.208.</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Sabbarese C., Ambrosino F., D'Onofrio A., Pugliese M., La Verde G., D'Avino V., &amp; Roca V. (2021). The first radon potential map of the Campania region (southern Italy). Applied Geochemistry, 126, 104890, DOI: 10.1016/j.apgeochem.2021.104890.</mixed-citation><mixed-citation xml:lang="en">Sabbarese C., Ambrosino F., D'Onofrio A., Pugliese M., La Verde G., D'Avino V., &amp; Roca V. (2021). The first radon potential map of the Campania region (southern Italy). Applied Geochemistry, 126, 104890, DOI: 10.1016/j.apgeochem.2021.104890.</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Selvam S., Muthukumar P., Sajeev S., Venkatramanan S., Chung S.Y., Brindha K., ... &amp; Murugan R. (2021). Quantification of submarine groundwater discharge (SGD) using radon, radium tracers and nutrient inputs in Punnakayal, south coast of India. Geoscience Frontiers, 12(1), 29-38 DOI: 10.1016/j.gsf.2020.06.012.</mixed-citation><mixed-citation xml:lang="en">Selvam S., Muthukumar P., Sajeev S., Venkatramanan S., Chung S.Y., Brindha K., ... &amp; Murugan R. (2021). Quantification of submarine groundwater discharge (SGD) using radon, radium tracers and nutrient inputs in Punnakayal, south coast of India. Geoscience Frontiers, 12(1), 29-38 DOI: 10.1016/j.gsf.2020.06.012.</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Shirokova L.S., Chupakov A.V., Ivanova I.S., Moreva O.Y., Zabelina S.A., Shutskiy N.A., ... &amp; Pokrovsky O.S. (2021). Lichen, moss and peat control of C, nutrient and trace metal regime in lakes of permafrost peatlands. Science of the Total Environment, 782, 146737, DOI: 10.1016/j. scitotenv.2021.146737.</mixed-citation><mixed-citation xml:lang="en">Shirokova L.S., Chupakov A.V., Ivanova I.S., Moreva O.Y., Zabelina S.A., Shutskiy N.A., ... &amp; Pokrovsky O.S. (2021). Lichen, moss and peat control of C, nutrient and trace metal regime in lakes of permafrost peatlands. Science of the Total Environment, 782, 146737, DOI: 10.1016/j. scitotenv.2021.146737.</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Syam N.S., Lim S., Lee H.Y., &amp; Lee S.H. (2020). Determination of radon leakage from sample container for gamma spectrometry measurement of 226Ra. Journal of environmental radioactivity, 220, 106275, DOI: 10.1016/j.jenvrad.2020.106275.</mixed-citation><mixed-citation xml:lang="en">Syam N.S., Lim S., Lee H.Y., &amp; Lee S.H. (2020). Determination of radon leakage from sample container for gamma spectrometry measurement of 226Ra. Journal of environmental radioactivity, 220, 106275, DOI: 10.1016/j.jenvrad.2020.106275.</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Walter Anthony K., Schneider von Deimling T., Nitze I., Frolking S., Emond A., Daanen R., Anthony P., Lindgren P., Jones B., &amp; Grosse G. (2018). 21st-century modeled permafrost carbon emissions accelerated by abrupt thaw beneath lakes. Nature Communications, 9, 3262, DOI: 10.1038/ s41467-018-05738-9.</mixed-citation><mixed-citation xml:lang="en">Walter Anthony K., Schneider von Deimling T., Nitze I., Frolking S., Emond A., Daanen R., Anthony P., Lindgren P., Jones B., &amp; Grosse G. (2018). 21st-century modeled permafrost carbon emissions accelerated by abrupt thaw beneath lakes. Nature Communications, 9, 3262, DOI: 10.1038/ s41467-018-05738-9.</mixed-citation></citation-alternatives></ref><ref id="cit43"><label>43</label><citation-alternatives><mixed-citation xml:lang="ru">Yakovlev E., &amp; Puchkov A. (2021). Radon over Kimberlite Pipes: Estimation of the Emanation Properties of Rocks (Lomonosov Diamond Deposit, NW Russia). Applied Sciences, 11(13), 6065, DOI: 10.3390/app112411765.</mixed-citation><mixed-citation xml:lang="en">Yakovlev E., &amp; Puchkov A. (2021). Radon over Kimberlite Pipes: Estimation of the Emanation Properties of Rocks (Lomonosov Diamond Deposit, NW Russia). Applied Sciences, 11(13), 6065, DOI: 10.3390/app112411765.</mixed-citation></citation-alternatives></ref><ref id="cit44"><label>44</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang Z.Q., Wu Q.B., Hou M.T., Tai B.W., &amp; An Y.K. (2021). Permafrost change in Northeast China in the 1950s-2010s. Advances in Climate Change Research, 12(1), 18-28, DOI: 10.1016/j.accre.2021.01.006.</mixed-citation><mixed-citation xml:lang="en">Zhang Z.Q., Wu Q.B., Hou M.T., Tai B.W., &amp; An Y.K. (2021). Permafrost change in Northeast China in the 1950s-2010s. Advances in Climate Change Research, 12(1), 18-28, DOI: 10.1016/j.accre.2021.01.006.</mixed-citation></citation-alternatives></ref><ref id="cit45"><label>45</label><citation-alternatives><mixed-citation xml:lang="ru">Zolkos S., Fiske G., Windholz T., Duran G., Yang Z., Olenchenko V., ... &amp; Natali S.M. (2021). Detecting and Mapping Gas Emission Craters on the Yamal and Gydan Peninsulas, Western Siberia. Geosciences, 11(1), 21, DOI: 10.3390/geosciences11010021.</mixed-citation><mixed-citation xml:lang="en">Zolkos S., Fiske G., Windholz T., Duran G., Yang Z., Olenchenko V., ... &amp; Natali S.M. (2021). Detecting and Mapping Gas Emission Craters on the Yamal and Gydan Peninsulas, Western Siberia. Geosciences, 11(1), 21, DOI: 10.3390/geosciences11010021.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
