<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992020000200241</article-id>
<article-id pub-id-type="doi">10.20937/rica.53021</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[BIOMONITORING OF A POPULATION RESIDING NEAR TO MINE TAILINGS IN GUANAJUATO, MEXICO]]></article-title>
<article-title xml:lang="es"><![CDATA[BIOMONITOREO DE UNA POBLACIÓN QUE RESIDE CERCA DE JALES MINEROS EN GUANAJUATO, MÉXICO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Costilla Salazar]]></surname>
<given-names><![CDATA[Rogelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha Amador]]></surname>
<given-names><![CDATA[Diana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz Vera]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz Jiménez]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa Reyes]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales López]]></surname>
<given-names><![CDATA[Gladys]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Nieto]]></surname>
<given-names><![CDATA[Edelmira]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mejía Gómez]]></surname>
<given-names><![CDATA[Juan Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guanajuato División de Ciencias de la Vida ]]></institution>
<addr-line><![CDATA[Irapuato Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Guanajuato División de Ciencias Naturales y Exactas ]]></institution>
<addr-line><![CDATA[Guanajuato ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí  ]]></institution>
<addr-line><![CDATA[San Luis Potosí ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Tlaxcala  ]]></institution>
<addr-line><![CDATA[Ixtacuixtla Tlaxcala]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>36</volume>
<numero>2</numero>
<fpage>241</fpage>
<lpage>248</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992020000200241&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992020000200241&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992020000200241&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Some metals present in residues coming from mining activities can damage DNA. A preliminary evaluation was carried out to determine the genotoxic effects on a resident population from a mining area in Xichú, Guanajuato, Mexico. Blood lead levels (BLL), and arsenic levels in urine (AsU), were measured as biomarkers of exposure. Hematological damage was evaluated trough hematocrit, hemoglobin and activity of enzyme delta-aminolevulinic dehydratase (&#948;-ALAD). DNA damage in blood cells was evaluated by comet assay. BLL (7.5 ± 1.2 and 7.9 ± 3.3 &#956;g/dL) and AsU (25.2 ± 15.8 and 18.3 ± 18.4 &#956;g/g creatinine) were found in children and adults, respectively. Of the children and adults, 100 and 91.7 %, respectively had levels of enzyme activity below 20 U/L erythrocytes. Regarding DNA damage, the children showed an Olive tail moment of 5.0 ± 1.6 and a tail length of 40.9 ± 4.9 &#956;m, of similar magnitude than adults (4.6 ± 1.0 and 41.8 ± 5.9 &#956;m, respectively). In conclusion, this preliminary study describes the health risk scenario of population near the mine, nevertheless, more studies are needed in the area.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Algunos metales presentes en residuos provenientes de actividades mineras pueden dañar al ADN. Se llevó a cabo una evaluación preliminar para determinar efectos genotóxicos en población residente de un área minera en Xichú, Guanajuato, México. Los niveles de plomo en sangre (PbS) y los niveles de Arsénico en orina (AsO) fueron medidos como biomarcadores de exposición. El daño hematológico se evaluó por medio del hematocrito, la hemoglobina y la actividad de la enzima acido delta-aminolevulínico dehidrasa (&#948;-ALAD). El daño al ADN fue evaluado a través del ensayo cometa. Niveles de PbS (7.5 ± 1.2 y 7.9 ± 3.3 &#956;g/dL) y AsO (25.2 ± 15.8 y 18.3 ± 18.4 &#956;g/g creatinina) fueron encontrados en niños y adultos, respectivamente. De éstos, el 100 % de los niños y el 91.7 % de los adultos tuvieron niveles de actividad de la enzima menor que 20 U/L eritrocitos. Respecto al daño en el ADN, los niños mostraron un momento de cola (5.0 ± 1.6) y una longitud de cola (40.9 ± 4.9 &#956;m) de similar magnitud que los adultos (4.6 ± 1.0 y 41.8 ± 5.9 &#956;m). En conclusión, este estudio preliminar describe el escenario de riesgo en salud de la población cercana a la mina; sin embargo, se necesitan más estudios en el área.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[lead]]></kwd>
<kwd lng="en"><![CDATA[arsenic]]></kwd>
<kwd lng="en"><![CDATA[genotoxicity]]></kwd>
<kwd lng="en"><![CDATA[mine tailings]]></kwd>
<kwd lng="es"><![CDATA[plomo]]></kwd>
<kwd lng="es"><![CDATA[arsénico]]></kwd>
<kwd lng="es"><![CDATA[genotoxicidad]]></kwd>
<kwd lng="es"><![CDATA[jales mineros]]></kwd>
</kwd-group>
</article-meta>
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