<?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>2304-0106</journal-id>
<journal-title><![CDATA[Anales de la Academia de Ciencias de Cuba]]></journal-title>
<abbrev-journal-title><![CDATA[Anales de la ACC]]></abbrev-journal-title>
<issn>2304-0106</issn>
<publisher>
<publisher-name><![CDATA[Academia de Ciencias de Cuba]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2304-01062023000200009</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Procedimiento para el monitoreo y gestión de la contaminación por metales pesados en sistemas fluviales de Cuba]]></article-title>
<article-title xml:lang="en"><![CDATA[Procedure for monitoring and managing of heavy metal contamination in river systems of Cuba]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mesa Pérez]]></surname>
<given-names><![CDATA[María Aurora]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Rizo]]></surname>
<given-names><![CDATA[Oscar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Pérez]]></surname>
<given-names><![CDATA[José M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Acosta]]></surname>
<given-names><![CDATA[Humberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alarcón Santos]]></surname>
<given-names><![CDATA[Onelia Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baqué]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tavella]]></surname>
<given-names><![CDATA[Marie J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Pérez]]></surname>
<given-names><![CDATA[Rayner]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Rodríguez]]></surname>
<given-names><![CDATA[Daylen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guerrero Domínguez]]></surname>
<given-names><![CDATA[Lilisbet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz Almeida]]></surname>
<given-names><![CDATA[Carlos Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Agraria de La Habana  ]]></institution>
<addr-line><![CDATA[ Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Superior de Tecnologías y Ciencias Aplicadas de la Universidad de La Habana  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Toulouse Laboratorio de Ecología Práctica y Medioambiental ]]></institution>
<addr-line><![CDATA[ Toulouse]]></addr-line>
<country>Francia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Empresa Provincial de Aprovechamiento Hidráulico  ]]></institution>
<addr-line><![CDATA[ Mayabeque]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<volume>13</volume>
<numero>2</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2304-01062023000200009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2304-01062023000200009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2304-01062023000200009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  Los factores que permiten el manejo de sistemas fluviales en riesgo de contaminación metálica, deben estar identificados con claridad para lograr disminuir el grado de contaminación y la mitigación de sus efectos. El trabajo tuvo como objetivo desarrollar e implementar un procedimiento que permita el manejo sostenible de sistemas fluviales en riesgo de contaminación metálica, como herramienta para facilitar la toma de decisiones a nivel territorial.  Métodos:  Mediante el método de consulta a expertos, se establecieron las dimensiones, categorías e indicadores que integran el modelo conceptual y el procedimiento de monitoreo y gestión de sistemas fluviales en riesgo de contaminación metálica. Durante la implementación en el sistema fluvial Pedroso-Mampostón, se utilizaron técnicas de Espectrometría de masas por plasma inducido y acoplado y fluorescencia de rayos X, oxidación catalítica, cromatografía en fase gaseosa, potenciometría y difracción de rayos X. Se utilizaron entrevistas semiestructuradas y trabajo grupal para obtener información y comunicar resultados.  Resultados:  El modelo conceptual consta de 2 subsistemas que permiten, mediante la evaluación de 6 indicadores abióticos y 8 bióticos, caracterizar la contaminación y categorizar los ecosistemas. El procedimiento que guía la implementación del modelo se definió en 4 etapas y se aplicó en el sistema fluvial Pedroso-Mampostón, lo que permitió categorizar sus unidades hidrológicas: presa Mampostón-Categoría I; ríos Ganuza y Mampostón y derivadora Pedroso; categoría IV. La contaminación se caracteriza como diseminada-restringida, frecuente y muy peligrosa. Existen evidencias de toxicidad en peces (CPEt moderado-alto: concentraciones de Cd no recomendables para el consumo en el 37,5 % el 44,0 %; contenido de Pb elevado en el 14 % al 20 %) y plantas (PDF en macrófitas: 16 % al 32 % Cd y Pb). En el hombre, existe peligro crónico para un consumo de 81 gr/día-1 y riesgo carcinogénico (real-restringido). Como conclusiones, el procedimiento aplicado puede ser generalizable a otros ecosistemas en riesgo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The factors that allow the management of river systems at metallic contamination risk, must be clearly identified in order to reduce the degree of contamination and mitigate its effects. The objective of the work was to develop and implement a procedure for the sustainable management of river systems at risk of metal contamination, which serve as a tool to facilitate decision making at the territorial level.  Methods:  It was established the conceptual model (dimensions, categories and indicators) and the implementation procedure by expert consultations. During the implementation in the Pedroso-Mampostón river system, they were used ICPMS and RX- fluorescence techniques, catalytic oxidation, gaseous phase chromatography, potentiometry and X-ray diffraction. They were used semi-structured interviews and team work to obtain information and communicate results.  Results:  The conceptual model consists in two subsystems (Monitoring and Response), that characterize pollution and categorize ecosystems by evaluating six abiotic and eight biotic indicators. It was defined the procedure that guides the implementation of the model in four stages and it was applied in the Pedroso-Mampostón river system, which allowed its hydrological units to be categorized: Mampostón Dam-Category I; Ganuza River, Mampostón River and Pedroso Dam-Category IV. Contamination is characterized as widespread-restricted, frequent and very dangerous. There is evidence of toxicity in fish (moderate-high CPEt: concentrations of Cd not recommended for consumption in 37.5%-44.0%; high Pb content in 14%-20%) and plants (PDF in macrophytes: 16%-32% Cd and Pb). In humans, there is a chronic non-carcinogenic danger from a consumption of 81 g.day-1 and a real-restricted carcinogenic risk. Conclusions: The procedure can be useful to other ecosystems at metallic contamination risk.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[manejo]]></kwd>
<kwd lng="es"><![CDATA[sistemas fluviales]]></kwd>
<kwd lng="es"><![CDATA[riesgo de contaminación]]></kwd>
<kwd lng="es"><![CDATA[metales pesados]]></kwd>
<kwd lng="en"><![CDATA[Management]]></kwd>
<kwd lng="en"><![CDATA[fluvial systems]]></kwd>
<kwd lng="en"><![CDATA[contamination risk]]></kwd>
<kwd lng="en"><![CDATA[heavy metal]]></kwd>
</kwd-group>
</article-meta>
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