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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">medlit</journal-id><journal-title-group><journal-title xml:lang="ru">Гигиена и санитария</journal-title><trans-title-group xml:lang="en"><trans-title>Hygiene and Sanitation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0016-9900</issn><issn pub-type="epub">2412-0650</issn><publisher><publisher-name>Federal Scientific Center of Hygiene named after F.F. Erisman</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.47470/0016-9900-2021-100-2-129-134</article-id><article-id custom-type="elpub" pub-id-type="custom">medlit-1256</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>МЕДИЦИНА ТРУДА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>OCCUPATIONAL HEALTH</subject></subj-group></article-categories><title-group><article-title>Эффективность шахтёрских респираторов</article-title><trans-title-group xml:lang="en"><trans-title>The effectiveness of the miners’ respirators</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3281-7157</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чеберячко</surname><given-names>Сергей Иванович</given-names></name><name name-style="western" xml:lang="en"><surname>Cheberyachko</surname><given-names>Sergej I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор тех. наук, профессор каф. охраны труда и гражданской безопасности, Национальный технический университет «Днепровская политехника», 49005, Днепр, Украина.</p><p>e-mail: sicheb@ukr.net</p></bio><bio xml:lang="en"><p>MD, Ph.D., DSci, Prof. National Mining University «Dnipro Polytechnic», Dnipro, 49005, Ukraine.</p><p>e-mail: sicheb@ukr.net</p></bio><email xlink:type="simple">sicheb@ukr.net</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8034-541X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Радчук</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Radchuk</surname><given-names>Dmitrij I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.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/0000-0002-2456-7664</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дерюгин</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Deryugin</surname><given-names>Oleg V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный технический университет «Днепровская политехника»</institution></aff><aff xml:lang="en"><institution>National Mining University «Dnipro Polytechnic»</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>22</day><month>03</month><year>2021</year></pub-date><volume>100</volume><issue>2</issue><fpage>129</fpage><lpage>134</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Чеберячко С.И., Радчук Д.И., Дерюгин О.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Чеберячко С.И., Радчук Д.И., Дерюгин О.В.</copyright-holder><copyright-holder xml:lang="en">Cheberyachko S.I., Radchuk D.I., Deryugin O.V.</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.rjhas.ru/jour/article/view/1256">https://www.rjhas.ru/jour/article/view/1256</self-uri><abstract><sec><title>Введение</title><p>Введение. При подземной добыче угля пыль является одним из основных вредных факторов. Несовершенство используемых технологий приводит к значительной запылённости и повышает риск развития неизлечимых пневмокониозов. Последним средством защиты становятся респираторы, но информация об их эффективности противоречива.</p></sec><sec><title>Цель</title><p>Цель. Уточнить эффективность фильтрующих средств индивидуальной защиты органов дыхания (СИЗОД) с эластомерными полумасками в условиях угольных шахт.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Для оценки эффективности СИЗОД используют коэффициент защиты (КЗ) – отношение концентрации загрязнений вне маски к концентрации в маске. Проводили замеры КЗ эластомерных полумасок второго класса защиты в лаборатории и на рабочих местах; дополнительно измеряли, какую долю времени шахтёры используют СИЗОД. Для оценки влияния СИЗОД на пылевую нагрузку проведено математическое моделирование с использованием результатов измерений.</p></sec><sec><title>Результаты</title><p>Результаты. В подавляющем большинстве случаев концентрация пыли под маской превышала предельно допустимую концентрацию (ПДК). Сведения о высокой эффективности респираторов-полумасок (при их непрерывном использовании) не подтвердились. КЗ, измеренный в лабораторных условиях, достигал 6,2; а на рабочих местах был от 5 до 31 (при непрерывном применении сертифицированных полумасок). Доля времени неприменения СИЗОД в 15 замерах была от 10 до 45% от длительности смены. Результаты измерений КЗ на рабочих местах, доли времени неприменения СИЗОД, а также данные о концентрации пыли в 5 угольных шахтах использовали для моделирования влияния применения респиратора на пылевую нагрузку. Расчёты, выполненные разными методами с помощью разных программ, дали совпадающий результат: в той запылённости, которая сейчас типична, полумаски не могут снизить концентрации пыли во вдыхаемом воздухе до ПДК даже при непрерывном применении.</p></sec><sec><title>Заключение</title><p>Заключение. Результаты показали, что использование противопылевых респираторов не позволяет обеспечить профилактику пневмокониозов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Dust is one of the main harmful factors in underground coal mining. The dust concentration in the coal mines remains high due to the imperfection of the used technologies, increasing the pneumoconiosis risk in miners. Respirators are the last means of protection, but information about their effectiveness is contradictory.</p></sec><sec><title>Aim</title><p>Aim. Assess the effectiveness of individual respiratory protective devices in the coal mines.</p></sec><sec><title>Material and methods</title><p>Material and methods. The protection factor (PF), the ratio of the dust concentration outside the mask to the concentration under the mask) is used to assess respirators’ effectiveness. We measured the PFs in the laboratory and the workplaces. We also measured the time the miners did not use respirators. The measurements’ results were used as input data for mathematical modeling to reduce dust load reduction.</p></sec><sec><title>Results</title><p>Results. The concentration of dust under the mask exceeded the Occupational Exposure Limit (OEL) in most cases. Information about the high efficiency of the negative pressure half-mask respirators (in case of continuous use) was not confirmed. The PFs measured under laboratory conditions reached 6.2, and in the workplace were from 5 to 31. The miners did not use respirators from 10 to 45% of the shift duration (15 measurements). The measurements and information on the concentration of dust in 5 mines were used to simulate the impact of the respirators’ usage on the dust load. Calculations performed by different methods, and using various programs, gave the same result. The negative pressure half-mask respirators cannot reduce the dust’s concentration in the inhaled air to the OEL even with continuous use.</p></sec><sec><title>Conclusion</title><p>Conclusion. 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