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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">25645</article-id><article-id pub-id-type="doi">10.22363/2313-2310-2020-28-2-172-182</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Ecology</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Экология</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">Water quality assessment of La Tembladera wetland in Ecuador using Water Quality Index</article-title><trans-title-group xml:lang="ru"><trans-title>Оценка качества воды водно-болотного угодья Ла Тембладера в Эквадоре на основе индекса качества воды WQI</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Arias Ordonez</surname><given-names>Priscila Jackeline</given-names></name><name xml:lang="ru"><surname>Ариас Ордоньес</surname><given-names>Присцила Хакелине</given-names></name></name-alternatives><bio xml:lang="en">master, assistant of the Department of Environmental Monitoring and Forecasting of the Ecological Faculty</bio><bio xml:lang="ru">магистр, ассистент кафедры экологического мониторинга и прогнозирования экологического факультета</bio><email>prisordonez@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (RUDN University)</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2020-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2020</year></pub-date><volume>28</volume><issue>2</issue><issue-title xml:lang="en">VOL 28, NO2 (2020)</issue-title><issue-title xml:lang="ru">ТОМ 28, №2 (2020)</issue-title><fpage>172</fpage><lpage>182</lpage><history><date date-type="received" iso-8601-date="2021-02-09"><day>09</day><month>02</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Arias Ordonez P.J.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Ариас Ордоньес П.Х.</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Arias Ordonez P.J.</copyright-holder><copyright-holder xml:lang="ru">Ариас Ордоньес П.Х.</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/25645">https://journals.rudn.ru/ecology/article/view/25645</self-uri><abstract xml:lang="en">In developing countries, tropical wetlands are essential for human livelihoods since they storage and provide freshwater for domestic, industrial, and agricultural uses. Unfortunately, tropical wetlands are subjected to anthropogenic impacts, such as direct discharge of municipal, industrial and livestock wastewater, leading to water pollution, and thus, affecting directly or indirectly people's health. Therefore, water quality assessment of these unique ecosystems using practical tools, such as Water Quality Index (WQI) is of great importance. This study aims to assess the water quality of one tropical Ramsar wetland La Tembladera for human consumption in wet and dry tropical seasons using WQI. This index was calculated using the following physical, chemical, and biological parameters: potential hydrogen (pH), turbidity, electrical conductivity (EC), dissolved oxygen (DO), biological oxygen demand (BOD5), chloride ions (Cl-), sulfates (SO42-), nitrates (NO3-), iron (Fe2+), Escherichia coli ( E. coli ), and Clostridium perfringens ( C. perfringens ). The WQI calculations revealed high values for the wet and dry tropical seasons, displaying values of 416.63 and 427.1, respectively. The obtained values indicate that the water of La Tembladera wetland is unsuitable for human consumption. These results might be valuable for legislative decision-makers to develop further recommendations and plans to improve the water quality, either for drinking purposes or other needs.</abstract><trans-abstract xml:lang="ru">Тропические водно-болотные угодья имеют важное значение для жизнедеятельности человека, поскольку они хранят и обеспечивают пресную воду для бытового, промышленного и сельскохозяйственного использования, особенно в развивающихся странах. Несмотря на это, водно-болотные угодья часто подвергаются антропогенным воздействиям, таким как прямой сброс муниципальных, промышленных и животноводческих сточных вод, что приводит к загрязнению воды и в свою очередь прямо или косвенно влияет на здоровье людей. Именно поэтому оценка качества воды этих уникальных экосистем с использованием практических инструментов, таких как индекс качества воды WQI, имеет большое значение. Целью исследования являлась оценка качества воды для использования в питьевых целях водно-болотного угодья Ла Тембладера в разных тропических сезонах, применяя WQI. Проведен анализ воды и расчет индекса по некоторым физико-химическим и биологическим параметрам: потенциальный водород (pH), мутность, электропроводность, растворенный кислород, биохимическое потребление кислорода (БПК5), хлорид-ионы (Cl-), сульфаты (SO42-), нитраты (NO3-), железо (Fe2+), Escherichia coli ( E. coli ) и Clostridium perfringens ( C. perfringens ). Выявлены высокие значения как для влажного, так и для сухого сезонов: 416,63 и 427,1 соответственно. Таким образом, качество воды водно-болотного угодья Ла Тембладера может быть оценено как неудовлетворительное для применения в качестве питьевой для населения. Полученные результаты будут полезны лицам, принимающим законодательные решения, а также для разработки дальнейших рекомендаций и проектов по улучшению качества воды, как для питьевых целей, так и для других нужд.</trans-abstract><kwd-group xml:lang="en"><kwd>drinking water quality</kwd><kwd>developing country</kwd><kwd>water quality index</kwd><kwd>Ramsar wetland</kwd><kwd>La Tembladera</kwd><kwd>Ecuador</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>качество питьевой воды</kwd><kwd>развивающиеся страны</kwd><kwd>индекс качества воды</kwd><kwd>водно-болотное угодье Рамсар</kwd><kwd>Ла Тембладера</kwd><kwd>Эквадор</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Zhou L, Guan D, Huang X, et al. Evaluation of the cultural ecosystem services of wetland park. Ecol. Indic. 2020;114. doi: 10.1016/j.ecolind.2020.106286.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Finlayson M, D’Cruz R, Davidson N. 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