<?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>S0188-49992019000300515</article-id>
<article-id pub-id-type="doi">10.20937/rica.2019.35.03.01</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[NECESSITY OF INTERVENTION POLICIES FOR TAILINGS IDENTIFIED IN THE ANTOFAGASTA REGION, CHILE]]></article-title>
<article-title xml:lang="es"><![CDATA[NECESIDAD DE POLÍTICAS DE INTERVENCIÓN PARA RELAVES IDENTIFICADOS EN LA REGIÓN DE ANTOFAGASTA, CHILE]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lam Esquenazi]]></surname>
<given-names><![CDATA[Elizabeth Johanna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Keith Norambuena]]></surname>
<given-names><![CDATA[Brian Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montofre Bacigalupo]]></surname>
<given-names><![CDATA[Ítalo Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gálvez Estay]]></surname>
<given-names><![CDATA[María Esperanza]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Católica del Norte Instituto de Políticas Públicas Departamento de Ingeniería Química]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica del Norte Departamento de Ingeniería de Sistemas y Computación ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Católica del Norte Metallurgical and Mining Department ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>35</volume>
<numero>3</numero>
<fpage>515</fpage>
<lpage>539</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992019000300515&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992019000300515&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992019000300515&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The aim of this work was to establish the intervention requirements of 30 tailings deposits located in the region of Antofagasta, Chile, identified in the National Tailings Survey carried out by the National Service of Geology and Mining of the Chilean government in 2017. For the evaluation, the data of 49 geochemical characterizations of the samples registered as of October 2017 were considered. The methodology used for evaluation was based on the Dutch Soil Regulation Circular, from which two ways of assessment were developed. The first approach uses a simple graphic method that depends only on the concentration of the elements in the solid phase of tailings and the percentage of clay in the soil. The second approach considers that the information related to the clay percentage is not available, therefore, this work defines the concepts of threshold factor and adjusted threshold factor. Using the proposed method, this work presents the analysis carried out on the elements of environmental significance related to mining activity in Chile: Cu, Cr, Ni, Zn, Pb, As, Cd and Hg. The methodology allows delimiting areas of foreseeable risks for people and/or environment, resulting in three criteria for each element: 1) requires intervention, 2) requires conditional intervention, 3) does not require intervention. These results are summarized by means of a final score that determines the level of priority assigned to each sample. The analysis of results indicates that Hg intervention is not required, there being only one case requiring conditional intervention. Regarding Cu and Zn, 100 % of the measurements indicated at least the requirement of a conditional intervention. Within the region, the commune of Sierra Gorda contains 67 % of the tailings whose intervention must be prioritized according to the score obtained (greater than four out of a possible maximum of eight). On the other hand, the two tailings of greater tonnage (the sites of Talabre and Laguna Seca) do not present a requirement for priority intervention at the moment.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El objetivo de este trabajo fue determinar los requisitos de intervención en 30 depósitos de relaves localizados en la región de Antofagasta, Chile, identificados en el Inventario Nacional de Relaves elaborado por el Servicio Nacional de Geología y Minería del gobierno chileno en 2017. En la evaluación se consideraron datos de 49 caracterizaciones geoquímicas de muestras registradas a partir de octubre de 2017. Se utilizó una metodología de la evaluación basada en la normativa holandesa para la ordenación del suelo, a partir de la cual se desarrollaron dos formas de evaluación. El primer enfoque utiliza un método gráfico simple que depende sólo de la concentración de elementos en la fase sólida de los relaves y el porcentaje de arcilla en el suelo. El segundo enfoque considera que la información relacionada con el porcentaje de arcilla no está disponible, por lo que el trabajo define los conceptos de umbral factorial y umbral factorial ajustado. Con base en el método propuesto, este trabajo presenta el análisis realizado a los elementos de relevancia ambiental relacionados con la actividad minera en Chile: Cu, Cr, Ni, Zn, Pb, As, Cd y Hg. La metodología utilizada permite delimitar áreas de riesgos predecibles para la población y/o el ambiente, con el resultado de tres criterios para cada elemento: 1) requiere intervención, 2) requiere intervención condicionada y 3) no requiere intervención. Estos resultados se sintetizan mediante un puntaje final que determina el nivel de prioridad asignado a cada muestra. El análisis de resultados indica que el Hg no requiere intervención, excepto en un caso que necesita intervención condicionada. Respecto al Cu y el ZN, el 100 % de las mediciones indicaron que se requiere al menos intervención condicionada. En términos regionales, la comuna de Sierra Gorda contiene el 67 % de los relaves en los cuales debe priorizarse la intervención, de acuerdo con el puntaje obtenido (mayor de cuatro de un máximo de ocho). Por otra parte, los dos relaves con mayor tonelaje (los sitios de Talabre y Laguna Seca) no requieren intervención prioritaria por el momento.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[environmental liability]]></kwd>
<kwd lng="en"><![CDATA[mining industry]]></kwd>
<kwd lng="en"><![CDATA[Dutch soil normative]]></kwd>
<kwd lng="es"><![CDATA[responsabilidad ambiental]]></kwd>
<kwd lng="es"><![CDATA[industria minera]]></kwd>
<kwd lng="es"><![CDATA[normativa holandesa para el suelo]]></kwd>
</kwd-group>
</article-meta>
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