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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="brief-report" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">84439</article-id><article-id pub-id-type="doi">10.17816/kazmj84439</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>Short Communication</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Drinking water quality in Zelenodolsk District and the health status of the child population</article-title><trans-title-group xml:lang="ru"><trans-title>Качество питьевой воды в Зеленодольском районе и состояние здоровья детского населения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shigapov</surname><given-names>R. M.</given-names></name><name xml:lang="ru"><surname>Шигапов</surname><given-names>Р. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Garipova</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Гарипова</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>info@eco-vector.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff id="aff1"><institution></institution></aff><pub-date date-type="pub" iso-8601-date="2001-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2001</year></pub-date><volume>82</volume><issue>6</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>463</fpage><lpage>464</lpage><history><date date-type="received" iso-8601-date="2021-10-31"><day>31</day><month>10</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-10-31"><day>31</day><month>10</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2001, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2001, Эко-Вектор</copyright-statement><copyright-year>2001</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/"/></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/84439">https://kazanmedjournal.ru/kazanmedj/article/view/84439</self-uri><abstract xml:lang="en"><p>Indicators of total hardness (from 1.4 to 1.9 times the norm), concentrations of iron (from 1.1 to 2.2 times) and manganese (up to 1.2 times) remain stably high in the Zelenodolsky district as a whole. During the whole observed period, nitrites and polyphosphates, which should not be present in drinking water, were detected, though in small amounts. Organoleptic indicators deteriorated, although they do not exceed standard annual averages. This is probably due to some increase in dry residue, sulfates and chlorides, are able to change the taste and smell even when reaching half of the normative values.</p></abstract><trans-abstract xml:lang="ru"><p>В целом по Зеленодольскому району на стабильно высоком уровне сохраняются показатели общей жесткости (от 1,4 до 1,9 раза выше нормативов), концентрации железа (от 1,1 до 2,2 раза), марганца (до 1,2 раза). В течение всего наблюдаемого периода обнаруживаются, хотя и в небольших количествах, нитриты и полифосфаты, которых не должно быть в питьевой воде. Ухудшились органолептические показатели, хотя и не превышают требований норматива по среднеднегодовым значениям. Вероятно, это связано с некоторым ростом показателей сухого остатка, сульфатов и хлоридов, способны изменить привкус и запах даже при достижении половинных значений от норматива.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Kazan Medical archive</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Казанский медицинский архив</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list/></back></article>
