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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Ekologiya cheloveka (Human Ecology)</journal-id><journal-title-group><journal-title xml:lang="en">Ekologiya cheloveka (Human Ecology)</journal-title><trans-title-group xml:lang="ru"><trans-title>Экология человека</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1728-0869</issn><issn publication-format="electronic">2949-1444</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">643447</article-id><article-id pub-id-type="doi">10.17816/humeco643447</article-id><article-id pub-id-type="edn">ILNNPU</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL STUDY ARTICLES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Unknown</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The contribution of weather factors to seasonal variations in oxygen partial density in different climatic zones</article-title><trans-title-group xml:lang="ru"><trans-title>Сезонные вариации парциальной плотности кислорода в различных климатических поясах</trans-title></trans-title-group><trans-title-group xml:lang="zh"><trans-title>不同气候带内局部氧气密度的季节变化</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5318-9623</contrib-id><contrib-id contrib-id-type="spin">7132-3844</contrib-id><name-alternatives><name xml:lang="en"><surname>Ragozin</surname><given-names>Oleg N.</given-names></name><name xml:lang="ru"><surname>Рагозин</surname><given-names>Олег Николаевич</given-names></name><name xml:lang="zh"><surname>Ragozin</surname><given-names>Oleg N.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biology), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доцент</p></bio><bio xml:lang="zh"><p>Cand. Sci. (Biology), Associate Professor</p></bio><email>oragozin@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0939-6411</contrib-id><contrib-id contrib-id-type="spin">4780-5985</contrib-id><name-alternatives><name xml:lang="en"><surname>Radysh</surname><given-names>Ivan V.</given-names></name><name xml:lang="ru"><surname>Радыш</surname><given-names>Иван Васильевич</given-names></name><name xml:lang="zh"><surname>Radysh</surname><given-names>Ivan V.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr.Sci. (Medicine), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><bio xml:lang="zh"><p>MD, Dr.Sci. (Medicine), Professor</p></bio><email>iradysh@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="researcherid">AHC-1001-2022</contrib-id><name-alternatives><name xml:lang="en"><surname>Muthelo</surname><given-names>Livhuwani</given-names></name><name xml:lang="ru"><surname>Мутэло</surname><given-names>Ливувани</given-names></name><name xml:lang="zh"><surname>Muthelo</surname><given-names>Livhuwani</given-names></name></name-alternatives><address><country country="ZA">South Africa</country></address><bio><p>PhD</p></bio><email>livhuwani.muthelo@ul.ac.za</email><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5201-4496</contrib-id><contrib-id contrib-id-type="spin">8125-9359</contrib-id><name-alternatives><name xml:lang="en"><surname>Shalamova</surname><given-names>Elena Yu.</given-names></name><name xml:lang="ru"><surname>Шаламова</surname><given-names>Елена Юрьевна</given-names></name><name xml:lang="zh"><surname>Shalamova</surname><given-names>Elena Yu.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Dr. Sci. (Biology), Associate Professor</p></bio><bio xml:lang="ru"><p>д-р биол. наук, доцент</p></bio><bio xml:lang="zh"><p>Dr. Sci. (Biology), Associate Professor</p></bio><email>selenzik@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5923-0941</contrib-id><contrib-id contrib-id-type="spin">4369-3372</contrib-id><name-alternatives><name xml:lang="en"><surname>Gudkov</surname><given-names>Andrey B.</given-names></name><name xml:lang="ru"><surname>Гудков</surname><given-names>Андрей Борисович</given-names></name><name xml:lang="zh"><surname>Gudkov</surname><given-names>Andrey B.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><bio xml:lang="ru"><p>д-р мед. наук, профессор</p></bio><bio xml:lang="zh"><p>MD, Dr. Sci. (Medicine), Professor</p></bio><email>gudkovab@nsmu.ru</email><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0199-2948</contrib-id><name-alternatives><name xml:lang="en"><surname>Ragozinа</surname><given-names>Elina R.</given-names></name><name xml:lang="ru"><surname>Рагозина</surname><given-names>Элина Разифовна</given-names></name><name xml:lang="zh"><surname>Ragozinа</surname><given-names>Elina R.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Postgraduate Student</p></bio><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="zh"><p>Postgraduate Student</p></bio><email>elinka1000@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5759-0270</contrib-id><contrib-id contrib-id-type="spin">6095-8392</contrib-id><name-alternatives><name xml:lang="en"><surname>Pogonysheva</surname><given-names>Irina А.</given-names></name><name xml:lang="ru"><surname>Погонышева</surname><given-names>Ирина Александровна</given-names></name><name xml:lang="zh"><surname>Pogonysheva</surname><given-names>Irina A.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Biology), Associate Professor</p></bio><bio xml:lang="ru"><p>канд. биол. наук, доцент</p></bio><bio xml:lang="zh"><p>Cand. Sci. (Biology), Associate Professor</p></bio><email>severina.i@bk.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Khanty-Mansiysk State Medical Academy</institution></aff><aff><institution xml:lang="ru">Ханты-Мансийская государственная медицинская академия</institution></aff><aff><institution xml:lang="zh">Khanty-Mansiysk State Medical Academy</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Nizhnevartovsk State University</institution></aff><aff><institution xml:lang="ru">Нижневартовский государственный университет</institution></aff><aff><institution xml:lang="zh">Nizhnevartovsk State University</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Peoples' Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов им. П. Лумумбы</institution></aff><aff><institution xml:lang="zh">Peoples' Friendship University of Russia</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">University of Limpopo</institution></aff><aff><institution xml:lang="ru">Университет Лимпопо</institution></aff><aff><institution xml:lang="zh">University of Limpopo</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Northern State Medical University</institution></aff><aff><institution xml:lang="ru">Северный государственный медицинский университет</institution></aff><aff><institution xml:lang="zh">Northern State Medical University</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-03-18" publication-format="electronic"><day>18</day><month>03</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-04-08" publication-format="electronic"><day>08</day><month>04</month><year>2025</year></pub-date><volume>31</volume><issue>9</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><issue-title xml:lang="zh"/><fpage>692</fpage><lpage>700</lpage><history><date date-type="received" iso-8601-date="2024-12-26"><day>26</day><month>12</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2025-02-26"><day>26</day><month>02</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-Вектор</copyright-statement><copyright-statement xml:lang="zh">Copyright ©; 2025,</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</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-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://hum-ecol.ru/1728-0869/article/view/643447">https://hum-ecol.ru/1728-0869/article/view/643447</self-uri><abstract xml:lang="en"><p><bold>Background:<italic> </italic></bold>Currently, there is growing concern about changes in the oxygen content in the surface air layer. There are weather classifications where the determining meteotropic effect affecting human health is the value of oxygen partial density, but among these types of weather, hyperoxia situations are not considered, although in a number of studies attention has been drawn to the negative impact on human health of high oxygen content in inhaled air. Taking into account the combination of periodic and aperiodic components of weather factors, it seems relevant to assess their intraannual variations in different climatic zones and determine their contribution to the formation of seasonal rhythms of partial oxygen density.</p> <p><bold>Aim:<italic> </italic></bold>To assess the contribution of weather factors of the subarctic and subtropical climatic zones to the seasonal dynamics of the partial oxygen density in the atmospheric air.</p> <p><bold>Materials and methods:<italic> </italic></bold>Wavelet analysis was used for mathematical analysis of weather changes. Signal analysis was performed in the plane of wavelet coefficients (scale–time–level). The statistical significance of rhythms was estimated by multiple (5000) random permutations of the levels of the original time series.</p> <p><bold>Results:</bold> In the Subarctic region, the annual rhythm of partial oxygen density is modulated by the insertion intra-annual rhythms of weather factors, in the subtropics, the rhythm of partial oxygen density is determined by constant low-amplitude rhythms of weather factors. The population of the North is exposed to hyperoxia during the five winter months and hypoxia in the summer. In the Limpopo province of South Africa, hypoxia occurs during the wet season (November to May), which, according to the medical weather classification, requires medical supervision.</p> <p><bold>Conclusion:</bold> Considering the presence of aperiodic components in the dynamics of weather factors, mathematical data processing requires the use of methods that evaluate changes in the spectral composition of a time series over time. We recommend supplementing medical weather classifications with such items as "hyperoxic day" and "hyperoxic" weather type.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование. </bold>В настоящее время растёт озабоченность учёных изменением содержания кислорода в приземном слое воздуха. Существуют классификации погод, где определяющим метеотропным воздействием, влияющим на здоровье человека, является величина парциальной плотности кислорода. Однако эти типы погоды не учитывают состояние гипероксии, хотя есть данные о негативном воздействии на здоровье человека высокого содержания кислорода во вдыхаемом воздухе. Представляется актуальным оценить сочетание периодических и апериодических компонентов погодных факторов и их внутригодовые вариации в различных климатических поясах и определить их вклад в формирование сезонных ритмов парциальной плотности кислорода.</p> <p><bold>Цель.</bold> Оценить вклад погодных факторов субарктического и субтропического климатических поясов в сезонную динамику парциальной плотности кислорода в атмосферном воздухе.</p> <p><bold>Материалы и методы. </bold>Для математического анализа изменений погоды применён вейвлет-анализ. Анализ сигналов производили в плоскости wavelet-коэффициентов (масштаб–время–уровень). Статистическую значимость ритмов оценивали путём многократной (5000) случайной перестановки уровней исходного временнÓго ряда.</p> <p><bold>Результаты.</bold> В субарктическом регионе годовой ритм парциальной плотности кислорода модулируется вставочными внутригодовыми колебаниями погодных факторов; в субтропиках вариабельность парциальной плотности кислорода определяется постоянными низкоамплитудными ритмами этих же факторов. Население Севера испытывает воздействие гипероксии в течение пяти зимних месяцев и гипоксии — летом. В провинции Лимпопо (ЮАР) в течение влажного сезона (с ноября по май) наблюдается гипоксия, которая в соответствии с медицинской классификацией погоды требует медицинского контроля.</p> <p><bold>Заключение.</bold> С учётом апериодических составляющих в динамике погодных факторов в математической обработке данных необходимо применение методов, которые оценивают изменения спектрального состава временнÓго ряда со временем. Медицинские классификации погод рекомендуем дополнить такими пунктами, как «гипероксический день» и «гипероксический» тип погоды.</p></trans-abstract><trans-abstract xml:lang="zh"><p>论证。当前，科学家们对地球近地面大气层中氧气含量的变化感到日益担忧。在一些天气分类中，影响人类健康的决定性气象效应是局部氧气密度值。尽管有证据表明吸入空气中的高浓度氧气会对健康产生不利影响，但是，这些类型的天气并不算是高氧条件。 评价气候因素中的周期性和非周期性成分的组合及其在不同气候带内的年内变化，并确定这些因素对形成季节性局部氧气密度节律的贡献，显然是迫切的需求。</p> <p>目的。评估亚北极气候区和亚热带气候区的气象因素对大气空气中局部氧气浓度季节动态变化的贡献。</p> <p>材料和方法。应用小波分析法对气候变化进行数学分析。信号分析在小波系数的平面（尺度-时间-等级）中进行。通过在原始时间序列水平上的多次（5000）随机排列评估了节律的统计意义。</p> <p>结果。在亚北极地区，局部氧密度的年节律受气候因素的插入式年内波动调节；在亚热带地区，局部氧密度的变化由这些因素的恒定低幅节律决定。 北方的居民在冬季的五个月里会受到多氧症的影响，而在夏季则会受到少氧症的影响。 在南非林波波省，根据天气的医学分类，需要医学监测，在潮湿季（11月至5月）会出现低氧症。</p> <p>结论。考虑到气候因素动态中的非周期成分，在数学数据处理中必须应用的方法，应能够评估时间序列的频谱成分随时间的变化。我们建议在天气的医学分类中增加“多氧日”和“多氧”天气类型等项目。</p></trans-abstract><kwd-group xml:lang="en"><kwd>extremeweather</kwd><kwd>oxygen</kwd><kwd>hypoxia</kwd><kwd>hyperoxia</kwd><kwd>North</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>экстремальные погодные условия</kwd><kwd>кислород</kwd><kwd>гипоксия</kwd><kwd>гипероксия</kwd><kwd>Север</kwd></kwd-group><kwd-group xml:lang="zh"><kwd>极端天气条件</kwd><kwd>氧气</kwd><kwd>低氧症</kwd><kwd>多氧症</kwd><kwd>北方</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Bobrovnitskiy IP, Yakovlev MYu, Fesyun OA, Evseev SM. 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