<?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>S0188-49992020000400847</article-id>
<article-id pub-id-type="doi">10.20937/rica.53614</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[GEODISPONIBILIDAD DE ELEMENTOS POTENCIALMENTE TÓXICOS EN SUELOS AGRÍCOLAS QUE REPRESENTAN RIESGO PARA EL AMBIENTE Y LA SALUD DE LA POBLACIÓN DEL NEVADO DE TOLUCA, MÉXICO]]></article-title>
<article-title xml:lang="en"><![CDATA[GEOAVAILABILITY OF POTENTIALLY TOXIC ELEMENTS IN AGRICULTURAL SOILS THAT REPRESENT A RISK TO THE ENVIRONMENT AND THE HEALTH OF THE POPULATION OF THE NEVADO DE TOLUCA, MEXICO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Alva]]></surname>
<given-names><![CDATA[Germán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gheno-Heredia]]></surname>
<given-names><![CDATA[Yaqueline Antonia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vieyra-Reyes]]></surname>
<given-names><![CDATA[Patricia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Campos]]></surname>
<given-names><![CDATA[Ángel Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Cadena]]></surname>
<given-names><![CDATA[Julieta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Arriaga]]></surname>
<given-names><![CDATA[Jerónimo Amado]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Manzur-Quiroga]]></surname>
<given-names><![CDATA[María de los Ángeles]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arteaga-Reyes]]></surname>
<given-names><![CDATA[Tizbe Teresa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Veracruzana Facultad de Ciencias Biológicas y Agropecuarias ]]></institution>
<addr-line><![CDATA[Amatlán Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma del Estado de México Instituto de Ciencias Agropecuarias y Rurales ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma del Estado de México Clínica Multidisciplinaria de Salud ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma del Estado de México Plantel Cuauhtémoc de la Escuela Preparatoria ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></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>4</numero>
<fpage>847</fpage>
<lpage>856</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992020000400847&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992020000400847&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992020000400847&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el Nevado de Toluca, México, el uso indiscriminado de plaguicidas para la producción de alimentos (principalmente papa) ha generado impactos negativos en las propiedades físicas y químicas del suelo, lo que representa un riesgo inminente para la salud ambiental y humana. El objetivo del presente estudio fue evaluar la concentración total y la fracción geodisponible de los principales elementos potencialmente tóxicos (As, Pb y Cd) provenientes de los plaguicidas más utilizados en suelos agrícolas del Nevado de Toluca. La determinación de metales pesados (Pb y Cd) se realizó mediante espectroscopia de emisión atómica por plasma de acoplamiento inductivo y para As, mediante espectroscopia de absorción atómica por generación de hidruros. Los resultados mostraron una concentración total considerable de elementos potencialmente tóxicos en la zona, así como una ostensible geodisponibilidad. Por tanto, hay evidencia de riesgo en el corto plazo por el abuso de plaguicidas en esta importante región del Nevado de Toluca, México.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In the Nevado de Toluca, Mexico the indiscriminate use of pesticides for food production (principally potato) has generated negative impacts on the physical and chemical properties of soil, which represents an imminent risk to environmental and human health. The objective of this study was to evaluate the total concentration and geoavailability fraction of the main potentially toxic elements (As, Pb and Cd) from the most used pesticides in agricultural soils of the Nevado de Toluca. The determination of heavy metals (Pb and Cd) was carried out by atomic emission spectroscopy with inductive coupling and in the case of the As, by atomic absorption spectroscopy with hydride generation. The results revealed a considerable total concentration of potentially toxic elements in the area whose geoavailability is evident. Therefore, there is evidence of global in the short term by the abuse of pesticides in this important region of the Nevado of Toluca, Mexico.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[plaguicidas]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="es"><![CDATA[salud humana]]></kwd>
<kwd lng="en"><![CDATA[pesticides]]></kwd>
<kwd lng="en"><![CDATA[pollution]]></kwd>
<kwd lng="en"><![CDATA[human health]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<collab>ATSDR</collab>
<source><![CDATA[Toxicological profile for arsenic]]></source>
<year>2007</year>
<page-range>559</page-range><publisher-loc><![CDATA[Atlanta, GA, USA ]]></publisher-loc>
<publisher-name><![CDATA[United States Department of Health and Human Services, Agency for Toxic Substances and Disease Registry]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<collab>ATSDR</collab>
<source><![CDATA[Toxicological profile for lead]]></source>
<year>2007</year>
<page-range>582</page-range><publisher-loc><![CDATA[Atlanta, GA, USA ]]></publisher-loc>
<publisher-name><![CDATA[United States Department of Health and Human Services, Agency for Toxic Substances and Disease Registry]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bain]]></surname>
<given-names><![CDATA[J.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Blowes]]></surname>
<given-names><![CDATA[D.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Robertson]]></surname>
<given-names><![CDATA[W.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Frind]]></surname>
<given-names><![CDATA[E.O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modelling of sulfoxidation with reactive transport at a mine drainage site]]></article-title>
<source><![CDATA[J. Contam. Hydrol.]]></source>
<year>2000</year>
<volume>41</volume>
<page-range>23-47</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bolognesi]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Genotoxicity of pesticides: A review of human biomonitoring studies]]></article-title>
<source><![CDATA[Mutat. Res.]]></source>
<year>2003</year>
<volume>543</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>251-72</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Boul]]></surname>
<given-names><![CDATA[S.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sustainability of soil use]]></article-title>
<source><![CDATA[Annu. Rev. Ecol. Evol. Syst.]]></source>
<year>2005</year>
<volume>26</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>25-44</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bull]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Fletcher]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Boobis]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Battershill]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evidence for genotoxicity of pesticides in pesticide applicators: a review]]></article-title>
<source><![CDATA[Mutagenesis]]></source>
<year>2006</year>
<volume>21</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>93-103</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Canfield]]></surname>
<given-names><![CDATA[R.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ch.R.]]></surname>
<given-names><![CDATA[Henderson]]></given-names>
</name>
<name>
<surname><![CDATA[Cory-Slechta]]></surname>
<given-names><![CDATA[D.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ch.]]></surname>
<given-names><![CDATA[Cox]]></given-names>
</name>
<name>
<surname><![CDATA[Jusko]]></surname>
<given-names><![CDATA[T.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lanphear]]></surname>
<given-names><![CDATA[B.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intellectual impairment in children with blood lead concentrations below 10 &#956;g per deciliter]]></article-title>
<source><![CDATA[N. Engl. J. Med.]]></source>
<year>2013</year>
<volume>348</volume>
<page-range>1517-26</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[M.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Gregorich]]></surname>
<given-names><![CDATA[E.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[D.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Doran]]></surname>
<given-names><![CDATA[J.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Jansen]]></surname>
<given-names><![CDATA[H.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Pierce]]></surname>
<given-names><![CDATA[F. J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Concepts of soil quality and their significance]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Gregorich]]></surname>
<given-names><![CDATA[E.G..]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Soil quality for crop production and ecosystem health]]></source>
<year>1997</year>
<volume>3</volume>
<page-range>213-58</page-range><publisher-loc><![CDATA[Amsterdam, Holanda ]]></publisher-loc>
<publisher-name><![CDATA[Elsevier Science Publishers]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[A.S.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[A.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira]]></surname>
<given-names><![CDATA[S.F.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Alves]]></surname>
<given-names><![CDATA[C.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Levels of As, Cd, Pb and Hg found in the hair from people living in Altamira, Pará, Brazil: Environmental implications in the Belo Monte Area]]></article-title>
<source><![CDATA[J. Braz. Chem. Soc.]]></source>
<year>2009</year>
<volume>20</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1153-63</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cavallo]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Cinzia]]></surname>
<given-names><![CDATA[L.U.]]></given-names>
</name>
<name>
<surname><![CDATA[Carelli]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Iavicoli]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Ciervo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Perniconi]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Rondinone]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Gismondi]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[IavicoLi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Occupational exposure in airport personnel characterization and evaluation of genotoxic and oxidative effects]]></article-title>
<source><![CDATA[Toxicology]]></source>
<year>2006</year>
<volume>223</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>26-35</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<collab>CONABIO</collab>
<source><![CDATA[Regiones terrestres prioritarias de México]]></source>
<year>2004</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Comisión Nacional para el Conocimiento de la Biodiversidad]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<collab>CONAGUA</collab>
<source><![CDATA[Estadísticas del agua en México]]></source>
<year>2008</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Comisión Nacional del Agua]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<collab>CONANP</collab>
<source><![CDATA[Parques nacionales]]></source>
<year>2008</year>
<publisher-loc><![CDATA[México ]]></publisher-loc>
<publisher-name><![CDATA[Comisión Nacional de Áreas Naturales Protegidas]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Corinne]]></surname>
<given-names><![CDATA[P.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Fang-Jie]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Steve McGrath]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Phytotoxicity of nickel in a range of European soils: Influence of soil properties, Ni solubility and speciation]]></article-title>
<source><![CDATA[Environ. Pollut.]]></source>
<year>2006</year>
<volume>145</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>596-605</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davor]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heavy metals distribution in agricultural topsoils in urban area]]></article-title>
<source><![CDATA[Environ. Geol.]]></source>
<year>2005</year>
<volume>43</volume>
<page-range>795-805</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="book">
<collab>FAO</collab>
<source><![CDATA[Soil map of the world (revised legend)]]></source>
<year>1990</year>
<page-range>23</page-range><publisher-loc><![CDATA[Roma, Italia ]]></publisher-loc>
<publisher-name><![CDATA[Food and Agriculture Organization of the United Nations]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Franco]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Regil]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Ordóñez]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dinámica de perturbación de las zonas forestales en el Parque Nacional Nevado de Toluca]]></article-title>
<source><![CDATA[Madera y Bosque]]></source>
<year>2006</year>
<volume>12</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>17-28</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Dorronsoro]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Contaminación por metales pesados]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Bolonegsi]]></surname>
<given-names><![CDATA[G.E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Tecnología de suelos, vol. 2]]></source>
<year>2005</year>
<page-range>145-8</page-range><publisher-loc><![CDATA[Madrid, España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Granada, Departamento de Edafología y Química Agrícola]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Garry]]></surname>
<given-names><![CDATA[V.F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pesticides and children]]></article-title>
<source><![CDATA[Toxicol. Appl. Pharmacol.]]></source>
<year>2004</year>
<volume>198</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>152-63</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<collab>GEM</collab>
<source><![CDATA[Áreas Naturales Protegidas en el Estado de México. Categorías de las áreas protegidas]]></source>
<year>2011</year>
<publisher-name><![CDATA[Gobierno del Estado de México, Secretaría de Medio Ambiente, Comisión Estatal de Parques Naturales y de la Fauna]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González-Fernández]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Ordónez-Fernández]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Espejo-Serrano]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Peregrini-Alonso]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cambios en el pH del perfil de un suelo ácido cultivado y enmendado con diversos materiales para incrementar su fertilidad]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Álvarez-Benedi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Marinero]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estudios de la zona no saturada del suelo, vol. 6]]></source>
<year>2003</year>
<page-range>373-88</page-range><publisher-loc><![CDATA[Madrid, España ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Politécnica de Madrid]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gregorich]]></surname>
<given-names><![CDATA[E.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Carter]]></surname>
<given-names><![CDATA[M.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Angers]]></surname>
<given-names><![CDATA[D.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Monreal]]></surname>
<given-names><![CDATA[C.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ellert]]></surname>
<given-names><![CDATA[B.H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Towards a minimum data set to asses soil organic matter quality in agricultural soils]]></article-title>
<source><![CDATA[Can. J. Soil Sci.]]></source>
<year>1994</year>
<volume>74</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>367-86</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haro]]></surname>
<given-names><![CDATA[G.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Chaín]]></surname>
<given-names><![CDATA[C.T.]]></given-names>
</name>
<name>
<surname><![CDATA[Barrón]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Bohórquez]]></surname>
<given-names><![CDATA[L.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Efectos de plaguicidas agroquímicos: Perfil epidemiológico-ocupacional de trabajadores expuestos]]></article-title>
<source><![CDATA[Revista Médica del IMSS]]></source>
<year>2002</year>
<volume>40</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>19-24</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Gordillo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual para la evaluación de impactos ambientales]]></source>
<year>2006</year>
<page-range>770</page-range><publisher-loc><![CDATA[INNCIVE, Madrid ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ismail]]></surname>
<given-names><![CDATA[I.B.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Farihah]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Khairiah]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bioaccumulation of heavy metals in vegetables from selected agricultural areas]]></article-title>
<source><![CDATA[Bull. Environ. Contam. Toxicol.]]></source>
<year>2008</year>
<volume>74</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>320-7</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Karlen D]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Wollenhaupt N.C.]]></surname>
<given-names><![CDATA[Erbach D.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Berry E.C.]]></surname>
<given-names><![CDATA[Swan J.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Each N.S.]]></surname>
<given-names><![CDATA[Jordahl J.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Crop residues effects on soil quality following 10-years of no-till corn]]></article-title>
<source><![CDATA[Soil Tillage Res.]]></source>
<year>1994</year>
<volume>31</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>149-67</page-range></nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Karlen]]></surname>
<given-names><![CDATA[D.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Mausbach]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Doran]]></surname>
<given-names><![CDATA[J.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Cline]]></surname>
<given-names><![CDATA[R.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Harris]]></surname>
<given-names><![CDATA[R.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Schuman]]></surname>
<given-names><![CDATA[G.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil quality: A concept, definition and framework for evaluation]]></article-title>
<source><![CDATA[Soil Sci. Soc. Am. J.]]></source>
<year>1997</year>
<volume>61</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>4-10</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Shuman]]></surname>
<given-names><![CDATA[L.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heavy metal movement in metal contaminated soil profiles]]></article-title>
<source><![CDATA[Soil Sci.]]></source>
<year>1996</year>
<volume>161</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>656-66</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mahler]]></surname>
<given-names><![CDATA[R.L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[General overview of nutrition for field and container crops]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Riley]]></surname>
<given-names><![CDATA[L.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Dumroese]]></surname>
<given-names><![CDATA[R.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Landis]]></surname>
<given-names><![CDATA[T.D.]]></given-names>
</name>
</person-group>
<source><![CDATA[National proceeding: Forest and Conservation Nursery Associations]]></source>
<year>2003</year>
<page-range>33-9</page-range><publisher-name><![CDATA[Proc. RMRS-P-33. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mansour]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Pesticide exposure-Egyptian scene]]></article-title>
<source><![CDATA[Toxicology]]></source>
<year>2004</year>
<volume>198</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>91-115</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Martínez-Alva]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Gutiérrez-Ruiz]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-Campos]]></surname>
<given-names><![CDATA[A.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Villalobos-Pietrini]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Arteaga-Reyes]]></surname>
<given-names><![CDATA[T.T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Concentración total y geodisponible de elementos potencialmente tóxicos en suelos volcánicos con uso agrícola del Nevado de Toluca, México]]></article-title>
<source><![CDATA[Rev. Int. Contam. Amb.]]></source>
<year>2015</year>
<volume>31</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>113-25</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McLean]]></surname>
<given-names><![CDATA[E.O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil pH and lime requirements]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Page]]></surname>
<given-names><![CDATA[A.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Miller]]></surname>
<given-names><![CDATA[R.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Keeney]]></surname>
<given-names><![CDATA[D.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Methods of soil analysis]]></source>
<year>1982</year>
<page-range>199-224</page-range><publisher-loc><![CDATA[Madison ]]></publisher-loc>
<publisher-name><![CDATA[Chemical and Microbiological Properties, American Society of Agronomy, Soil Science Society of America]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parr]]></surname>
<given-names><![CDATA[J.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Papendick]]></surname>
<given-names><![CDATA[R.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Hornick]]></surname>
<given-names><![CDATA[S.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Meyer]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil quality: Attributes and relationships to alternative and sustainable agriculture]]></article-title>
<source><![CDATA[Am. J. Alternative Agr.]]></source>
<year>2002</year>
<volume>7</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>5-11</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Petruzelli]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recycling wastes in agriculture: Heavy metal bioavailability]]></article-title>
<source><![CDATA[Agric. Ecosyst. Environ.]]></source>
<year>2000</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>493-503</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Porta]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[A.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Roquero]]></surname>
<given-names><![CDATA[L.C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Edafología para la agricultura y el medio ambiente]]></source>
<year>2003</year>
<page-range>562</page-range><publisher-loc><![CDATA[Madrid ]]></publisher-loc>
<publisher-name><![CDATA[Mundi Prensa]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Roberts]]></surname>
<given-names><![CDATA[T.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Skeffington]]></surname>
<given-names><![CDATA[R.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Blank]]></surname>
<given-names><![CDATA[L.W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Causes of Type 1 Spruce decline in Europe]]></article-title>
<source><![CDATA[Forestry]]></source>
<year>1999</year>
<volume>62</volume>
<page-range>179-222</page-range></nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="book">
<collab>SAS</collab>
<source><![CDATA[SAS user&#8217;s guide: Statistics. Release 6.03]]></source>
<year>1988</year>
<page-range>1028</page-range><publisher-loc><![CDATA[Nueva York, EUA ]]></publisher-loc>
<publisher-name><![CDATA[SAS Institute. Cary]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<collab>SEMARNAT</collab>
<article-title xml:lang=""><![CDATA[Norma Oficial Mexicana NOM-147-SEMARNAT/SSA1-2004. Que establece los criterios para determinar las concentraciones de remediación de suelos contaminados por arsénico, bario, berilio, cadmio, cromo(vi), mercurio, níquel, plata, plomo, selenio, talio y/o vanadio y otros]]></article-title>
<source><![CDATA[Diario Oficial de la Federación, México, 2 de marzo]]></source>
<year>2007</year>
</nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="book">
<collab>USEPA</collab>
<source><![CDATA[Types of pesticides]]></source>
<year>2010</year>
<publisher-name><![CDATA[United States Environmental Protection Agency]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Virkutyte]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Sillanpää]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Latostenmaa]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electrokinetic soil remediation-Critical overview]]></article-title>
<source><![CDATA[Sci. Total Environ.]]></source>
<year>2002</year>
<volume>289</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>97-121</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Waliszewski]]></surname>
<given-names><![CDATA[S.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Arroyo]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Infanzón]]></surname>
<given-names><![CDATA[R.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Carvajal]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Villalobos-Pietrini]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Trujillo]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Maxwell Hart]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Persistent organochlorine pesticide levels in bovine fat from Mexico]]></article-title>
<source><![CDATA[Food Addit. Contam.]]></source>
<year>2004</year>
<volume>21</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>774-80</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walkey]]></surname>
<given-names><![CDATA[A.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Black]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A rapid determination of soil organic matter]]></article-title>
<source><![CDATA[J. Agric. Sci.]]></source>
<year>1947</year>
<volume>25</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>563-8</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Woo]]></surname>
<given-names><![CDATA[N.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Chi]]></surname>
<given-names><![CDATA[M.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic and metal contamination of water resources from mining wastes in Korea]]></article-title>
<source><![CDATA[Environ. Geol.]]></source>
<year>2001</year>
<volume>40</volume>
<page-range>305-11</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
