<?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>S0188-49992022000100112</article-id>
<article-id pub-id-type="doi">10.20937/rica.54194</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[EVALUACIÓN DEL PELIGRO DE CONTAMINACIÓN DEL AGUA SUBTERRÁNEA EN ÁREAS AGRÍCOLAS]]></article-title>
<article-title xml:lang="en"><![CDATA[ASSESSMENT OF GROUNDWATER POLLUTION HAZARD IN AGRICULTURAL AREAS]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Grondona]]></surname>
<given-names><![CDATA[Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Massone]]></surname>
<given-names><![CDATA[Héctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonzalez]]></surname>
<given-names><![CDATA[Mariana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bedmar]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Mar del Plata-Comisión de Investigaciones Científicas Buenos Aires Instituto de Geología de Costas y del Cuaternario ]]></institution>
<addr-line><![CDATA[Mar Del Plata ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Mar del Plata-CONICET Instituto de Investigaciones Marinas y Costeras (IIMyC) Laboratorio de Ecotoxicología y Contaminación Ambiental (ECoA)]]></institution>
<addr-line><![CDATA[Mar Del Plata ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional de Mar del Plata-CONICET Instituto de Investigaciones Marinas y Costeras (IIMyC) ]]></institution>
<addr-line><![CDATA[Mar Del Plata ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional de Mar del Plata Facultad de Ciencias Agrarias Departamento de Producción Vegetal, Suelos e Ingeniería Rural]]></institution>
<addr-line><![CDATA[Balcarce ]]></addr-line>
<country>Argentina</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>38</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992022000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992022000100112&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992022000100112&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo del presente trabajo consistió en evaluar el peligro de contaminación del agua subterránea asociado al uso de plaguicidas, considerando sus propiedades, las del suelo donde son aplicados y las del acuífero al cual potencialmente pueden lixiviar. La zona de estudio considerada fue la cuenca del río Quequén Grande donde la única provisión de agua es el acuífero Pampeano y la agricultura la actividad dominante. Se trabajó en entorno ARCGIS y el peligro de contaminación se obtuvo por la combinación de la vulnerabilidad del acuífero (índice DRASTIC) y la carga contaminante potencial (índice AFT). El mapa de vulnerabilidad mostró que los sectores menos vulnerables se ubican en la zona alta de la cuenca y los de mayor en la zona baja. Cinco plaguicidas fueron clasificados con una categoría superior a &#8220;poco probable lixiviación&#8221;, con las mayores cargas contaminantes en el sector alto. Se obtuvieron dos mapas de peligro, con las zonas de menor peligro en la zona NE, debido al nivel freático más profundo y mayor porcentaje de materia orgánica. Las zonas de mayor peligro se ubican en el sector O y SE, debido a menores contenidos de materia orgánica, bajos espesores del horizonte A y un nivel freático más somero. Estos mapas obtenidos pueden ser utilizados entonces en la gestión del hídrico subterráneo: si la carga contaminante es baja, se considera suficiente el uso de los mapas obtenidos según el índice AFT. Por el contrario, en aquellos casos que la carga sea mayor, se debe contemplar el uso de los mapas de peligrosidad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This work evaluates the groundwater contamination hazard associated with the use of pesticides, considering their properties, the soil where they are applied and the aquifer to which they can potentially leach. The study area considered was the Quequén Grande River basin where the only water supply is the Pampeano aquifer and agriculture is the dominant activity. The contamination hazard was obtained by combining the aquifer vulnerability (DRASTIC index) and the potential pollutant load (AFT index) working whit ARCGIS software. The sectors with the least vulnerability were in the upper zone of the watershed and those with the greatest vulnerability in the lower zone. Five pesticides were classified with a category higher than &#8220;unlikely leaching&#8221;, obtaining the highest potential pollutant loads in the upper sector. Two hazard maps were obtained. In both, the least hazard areas are located in the northeast, where the water table is deeper, and the percentage of organic matter is higher. The areas of greatest hazard are in the west and southeast due to the shallow water level, lower content of organic matter, and low thickness of the A horizon. These maps obtained can then be used in groundwater management: if the contaminant load is low, the use of the maps obtained according to the AFT index is considered sufficient. On the contrary, in those cases where the load is greater, the use of hazard maps should be considered.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[acuífero]]></kwd>
<kwd lng="es"><![CDATA[lixiviación]]></kwd>
<kwd lng="es"><![CDATA[plaguicidas]]></kwd>
<kwd lng="es"><![CDATA[cuenca del río Quequén Grande]]></kwd>
<kwd lng="en"><![CDATA[aquifer]]></kwd>
<kwd lng="en"><![CDATA[pesticides]]></kwd>
<kwd lng="en"><![CDATA[leaching]]></kwd>
<kwd lng="en"><![CDATA[Quequén Grande River watershed]]></kwd>
</kwd-group>
</article-meta>
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