<?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>S2007-24222018000100053</article-id>
<article-id pub-id-type="doi">10.24850/j-tyca-2018-01-04</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio de la calidad bacteriológica y parámetros fisicoquímicos del agua del Distrito de Riego 023]]></article-title>
<article-title xml:lang="en"><![CDATA[Study of the bacteriological quality and physiochemical parameters of water from the Irrigation District 023]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Durán]]></surname>
<given-names><![CDATA[Nami]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torre-González]]></surname>
<given-names><![CDATA[Anaí de la]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Sánchez]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Querétaro  ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>1</numero>
<fpage>53</fpage>
<lpage>67</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-24222018000100053&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-24222018000100053&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-24222018000100053&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen San Juan del Río, Querétaro (México), es una de las regiones industriales más importantes del estado, lo que ha llevado a un gran desarrollo demográfico y el incremento en la demanda de recursos para satisfacer las necesidades de la población creciente, sobre todo en los recursos hídricos, como es el caso del Distrito de Riego 023 (DR 023), en el cual, 11 048 ha son destinadas a la producción de cultivos de importancia agrícola. Sin embargo, el problema que se presenta es que con el crecimiento demográfico de los últimos años, las áreas urbanas se han desarrollado cerca de la red de canales, lo que lleva consigo a la descarga de aguas negras a la red de distribución. En este trabajo se examinaron las concentraciones de bacterias coliformes fecales en el agua de 53 puntos del DR 023 en abril de 2015, así como las condiciones fisicoquímicas. Además, se compararon los niveles de coliformes fecales obtenidos con los permitidos por la Ley Federal de Derechos y Disposiciones Aplicables en Materia de Aguas Nacionales 2015 y la NOM-001-Semarnat-1996. Se encontró que la mayoría de los puntos en los que se obtuvo muestra presentaron niveles altos de coliformes fecales y condiciones fisicoquímicas no ideales para su uso en el riego de cultivos. Estos resultados denotan la necesidad de un monitoreo constante de los cuerpos de agua destinados a la agricultura en la región, ya que los microorganismos indicadores fecales indican la potencial presencia de patógenos en el agua.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract San Juan del Río, Querétaro (Mexico), is one of the most important industrial regions of the state, which has led to a great demographic development and the increase in the demand of resources to meet the needs of the growing population, especially in water resources, such as the Irrigation District 023 (DR 023), in which 11 048 ha are destined to the production of crops of agricultural importance. However, with population growth of recent years, urban areas have developed near the canal network, which carries the wastewater discharge to the distribution network. In this work the concentrations of fecal coliform bacteria in the water of 53 points of the DR 023 in April 2015, and the physicochemical conditions were examined. Also, fecal coliform obtained levels were compared with those permitted by the Federal Law of Rights and Applicable Disposition on Matters of National Waters 2015 and NOM-001-Semarnat-1996. We found that most of the points on which sample was obtained, showed high levels of fecal coliform and physicochemical conditions not appropriate for use in irrigation. These results indicate the need for constant monitoring of water bodies for agriculture in the region, as fecal indicator organisms indicate the potential presence of pathogens in the water.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[contaminación del agua]]></kwd>
<kwd lng="es"><![CDATA[coliformes fecales]]></kwd>
<kwd lng="es"><![CDATA[calidad bacteriológica]]></kwd>
<kwd lng="en"><![CDATA[Water contamination]]></kwd>
<kwd lng="en"><![CDATA[fecal coliform]]></kwd>
<kwd lng="en"><![CDATA[bacteriological quality]]></kwd>
</kwd-group>
</article-meta>
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