<?xml version="1.0" encoding="ISO-8859-1"?><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">
<front>
<journal-meta>
<journal-id>2007-2422</journal-id>
<journal-title><![CDATA[Tecnología y ciencias del agua]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnol. cienc. agua]]></abbrev-journal-title>
<issn>2007-2422</issn>
<publisher>
<publisher-name><![CDATA[Instituto Mexicano de Tecnología del Agua, Coordinación de Comunicación, Participación e Información]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-24222018000300156</article-id>
<article-id pub-id-type="doi">10.24850/j-tyca-2018-03-07</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estimación de la exposición a elevados contenidos de fluoruro en agua potable en distintas comunidades de Guanajuato, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Estimation of exposure to high fluoride contents in groundwater supply in some villages in Guanajuato, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Arredondo&#8224;]]></surname>
<given-names><![CDATA[José Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Armienta]]></surname>
<given-names><![CDATA[María Aurora]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Ramiro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geofísica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geofísica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geofísica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>3</numero>
<fpage>156</fpage>
<lpage>179</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-24222018000300156&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-24222018000300156&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-24222018000300156&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se llevó a cabo un estudio para estimar los niveles de riesgo por exposición para desarrollar fluorosis dental y esquelética en distintas comunidades en Santa Cruz de Juventino Rosas (JR), estado de Guanajuato, México. El estudio incluyó el análisis químico de la concentración de fluoruros en muestras de agua de 23 pozos durante los años 2011 hasta 2016; se realizó el cálculo para estimar la exposición a fluoruros (EEF) y una encuesta epidemiológica (EEp) usando el Índice de Dean (ID). EL rango de concentración de fluoruros en los pozos fue de 0.15 a 3.24 mg/l. Doce pozos muestreados exceden el límite permisible de calidad en relación con la concentración de fluoruros, establecido por la norma oficial mexicana NOM-127-SSA1-1994, que es de 1.5 (mg/l) en agua para consumo humano. Altas concentraciones de F- en el agua subterránea se han asociado con flujos geotérmicos ascendentes. De acuerdo con los resultados de EEF (0.01-1.8 mg/kg/d), las personas de tres asentamientos rurales con rangos de edad entre 16 y 50 años están en riesgo potencial para generar fluorosis dental; los resultados de la EEp confirmaron esta situación. El 23% de la población encuestada mostró evidencias de fluorosis dental, la mayoría gente joven; más de 50% de los individuos con evidencias de fluorosis dental tienen entre 16 y 50 años. Se considera que un factor importante para el desarrollo de fluorosis dental es el continuo consumo de agua enriquecida en fluoruros. Algunas de las personas encuestadas viven en el sitio desde hace más de 20 años.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A study was carried out to estimate the level of fluoride exposure and the human health risk of developing dental and skeletical fluorosis in some of the villages in Santa Cruz de Juventino Rosas (JR), state of Guanajuato, Mexico. The study included a fluoride concentration analysis of groundwater samples from 23 wells during the years 2010 to 2016, estimation of exposure to fluoride (EEF), and an epidemiological survey (ES) using Dean&#8217;s Index (DI). Fluoride concentrations ranged from 0.51 to 324 mg/l. Twelve sampled wells exceeded the national guideline values for fluoride concentrations (NOM-127-SSA1-1994: 1.5 mg/l). High F- concentrations are associated with ascending geothermal flow. According to EEF results (0.01-1.8 mg/kg/d), people from three small towns, from 16 to 50 years old, were at potential risk of dental fluorosis. This was confirmed by the results from the ES, with 23% of the people surveyed showing evidence of dental fluorosis, mostly young individuals. More than 50% of the people with evidence of dental fluorosis were between 16 to 50 years old. The ongoing consumption of fluoride-rich water is considered to be an important factor for developing dental fluorosis, and some of the people surveyed have lived at the study site for about 20 years.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fluorosis dental]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
<kwd lng="es"><![CDATA[patrones de consumo de agua]]></kwd>
<kwd lng="en"><![CDATA[Dental fluorosis]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="en"><![CDATA[water consumption patterns]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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