<?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>0120-6230</journal-id>
<journal-title><![CDATA[Revista Facultad de Ingeniería Universidad de Antioquia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.fac.ing.univ. Antioquia]]></abbrev-journal-title>
<issn>0120-6230</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ingeniería, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-62302022000400020</article-id>
<article-id pub-id-type="doi">10.17533/udea.redin.20210533</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Water pollution index of high Andean micro-basin of the Chumbao River, Andahuaylas, Peru]]></article-title>
<article-title xml:lang="es"><![CDATA[Índices de contaminación del agua de la microcuenca altoandina del río Chumbao, Andahuaylas, Perú]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Choque-Quispe]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Pacheco]]></surname>
<given-names><![CDATA[Betsy S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ligarda-Samanez]]></surname>
<given-names><![CDATA[Carlos A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solano-Reynoso]]></surname>
<given-names><![CDATA[Aydeé M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Correa-Cuba]]></surname>
<given-names><![CDATA[Odilon]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quispe-Quispe]]></surname>
<given-names><![CDATA[Yadyra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Choque-Quispe]]></surname>
<given-names><![CDATA[Yudith]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional José María Arguedas Departamento de Igeniería Agroindustrial ]]></institution>
<addr-line><![CDATA[Andahuaylas ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de los Andes Departmento de Ingeniería Ambiental ]]></institution>
<addr-line><![CDATA[Andahuaylas ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Andina del Cusco Departmento de Ingeniería Ambiental ]]></institution>
<addr-line><![CDATA[Cusco ]]></addr-line>
<country>Peru</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<numero>105</numero>
<fpage>20</fpage>
<lpage>28</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-62302022000400020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-62302022000400020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-62302022000400020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT During its journey, the river water suffers natural or anthropic contamination, deteriorating its quality. This impact can be qualified by determining the pollution Indexes (IPO). The work aimed to evaluate the spatial and temporal variation of the IPOs in the water of the high Andean micro-basin of the Chumbao River. The study included the section from 13°46'38.4&#8221; S, 73°15'32.3&#8221; W at 4079 m of altitude up to 13°35'26.4&#8221; S, 73°27'00.8&#8221; W at 2572 m of altitude. Physical, chemical, and microbiological parameters of the water were determined in 8 points along the river. These were grouped to calculate the IPO by mineralization (IPOMI), organic matter (IPOMO), suspended solids (IPOSUS), and trophic (IPOTRO) in the dry and rainy seasons. The indexes were categorized from 0.0 (not polluted) to 1.0 (highly polluted). The data were collected in triplicate and valuated through ANOVA and Tukey's test. It was found that IPOSUS, IPOMI, and IPOMO. The points near the head of the micro-basin reported no and low pollution; besides, they increased considerably in urban areas reaching highly polluted levels. In contrast, IPOTRO reported a eutrophic state, and that contamination levels were higher in the dry season. The waters of the Chumbao River above 2900 m of altitude and close to the head of the micro-basin do not show contamination, but in the urban area the index of pollution is high.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El agua de los ríos durante su trayecto sufre contaminación natural o antrópica, deteriorando su calidad; una herramienta que permite cualificar este impacto son los índices de contaminación (ICO). El objetivo del trabajo fue evaluar la variación espacial y temporal de los ICO del agua de la microcuenca altoandina del río Chumbao. El estudio comprendió el tramo 13°46&#8217;38.4&#8221; S, 073°15&#8217;32.3&#8221; O y 4079 m de altitud a 13°35&#8217;26.4&#8221; S, 73° 27&#8217;00.8&#8221; O y 2572 m de altitud. Se determinaron parámetros físicos, químicos y microbiológicos del agua, en 08 puntos del río, en temporada de estiaje y lluvia, y fueron agrupados para el calculó del ICO por mineralización (ICOMI), materia orgánica (ICOMO), sólidos suspendidos (ICOSUS) y trófico (ICOTRO). Los índices fueron categorizados de 0.0 (ninguna contaminación) a 1.0 (muy alta contaminación). Los datos se recolectaron por triplicado y evaluados con un ANOVA y test Tukey. Se encontró que ICOSUS, ICOMI E ICOMO en los puntos cercanos a la cabecera de cuenca reportaron ninguna y baja contaminación, e incrementaron considerablemente en las zonas urbanas llegando a niveles de altamente contaminado, mientras que el ICOTRO reporto estado eutrófico, con niveles de contaminación mayores en temporada de estiaje. Las aguas del río Chumbao por encima de 2900 m de altitud y cercanos a la cabecera de la microcuenca, presenta ninguna contaminación, y en la zona urbana el incide de contaminación es alta.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Organic matter]]></kwd>
<kwd lng="en"><![CDATA[suspended solids]]></kwd>
<kwd lng="en"><![CDATA[trophic state]]></kwd>
<kwd lng="es"><![CDATA[Materia orgánica]]></kwd>
<kwd lng="es"><![CDATA[solidos suspendidos]]></kwd>
<kwd lng="es"><![CDATA[estado trófico]]></kwd>
</kwd-group>
</article-meta>
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