<?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>2664-2891</journal-id>
<journal-title><![CDATA[Revista científica ciencias de la salud]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. cient. cienc. salud]]></abbrev-journal-title>
<issn>2664-2891</issn>
<publisher>
<publisher-name><![CDATA[Universidad del Pacífico]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2664-28912022000100075</article-id>
<article-id pub-id-type="doi">10.53732/rccsalud/04.01.2022.75</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Relevant aspects on biomonitoring of heavy metal concentration in environmental air in Asunción city]]></article-title>
<article-title xml:lang="es"><![CDATA[Aspectos relevantes del Biomonitoreo de la concentración de metales pesados en el aire ambiental de la ciudad de Asunción]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Coronel-Teixeira]]></surname>
<given-names><![CDATA[Rosarito]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cañiza]]></surname>
<given-names><![CDATA[Bernardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fretes]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Mabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pasten]]></surname>
<given-names><![CDATA[Max]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escurra]]></surname>
<given-names><![CDATA[Cecile Magis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Bejarano]]></surname>
<given-names><![CDATA[Domingo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Ministerio de Salud Pública y Bienestar Social Instituto Nacional de Enfermedades Respiratorias y Ambientales ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Ciencias Exactas y Naturales Cátedra de Botánica General]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Dirección Nacional de Aeronáutica Civil Dirección de Meteorología e Hidrología ]]></institution>
<addr-line><![CDATA[Asunción ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad Politécnica ]]></institution>
<addr-line><![CDATA[San Lorenzo ]]></addr-line>
<country>Paraguay</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Radboud University Medical Centre Groningen Department of Pulmonary Diseases ]]></institution>
<addr-line><![CDATA[Nijmegen ]]></addr-line>
<country>Netherlands</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Ministerio de Salud Pública y Bienestar Social Hospital Regional de Luque ]]></institution>
<addr-line><![CDATA[Luque ]]></addr-line>
<country>Paragua</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>4</volume>
<numero>1</numero>
<fpage>75</fpage>
<lpage>83</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_arttext&amp;pid=S2664-28912022000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_abstract&amp;pid=S2664-28912022000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.iics.una.py/scielo.php?script=sci_pdf&amp;pid=S2664-28912022000100075&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Introduction. Bryophytes (mosses) have long been used to determine the concentration of heavy metals as an alternative to the collection of atmospheric aerosols. Objective. To evaluate the environmental concentration of lead, cadmium, mercury and arsenic in autochthonous species of moss and to analyze some methodological aspects of biomonitoring in Paraguay. Methodology. In an observational study moss samples were obtained from sub rural zone to be transplanted in 5 sites of high vehicular traffic in Asunción city. The samples were left outdoors for 58 days and then collected and subjected to study using the inductive coupling plasma source mass spectrometry technique. The bryophytes were characterized and all the climatological variables during the study period were consigned. Results. Lead concentrations detected in moss explants exposed to the urban environment were higher than mosses from natural forest, while arsenic levels in the latter were higher than those found in bryophytes transferred to the city. No conspicuous levels of cadmium and mercury were found. The bryophytes used belonged to two families: Hypnaceae and Pilotrichaceae. The range of temperature, relative humidity, wind and precipitation did not reach extreme levels during the studied period. Conclusion. The different lead levels measured here, could be surrogates of urban pollution while the notorious arsenic level in natural forest moss points to other sources like wildfires. Several aspects of the biomonitoring methodology are discussed.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Introducción. Las briofitas (musgos) se han utilizado durante mucho tiempo para determinar la concentración de metales pesados como alternativa a la recolección de aerosoles atmosféricos. Objetivo. Evaluar la concentración ambiental de plomo, cadmio, mercurio y arsénico en especies autóctonas de musgo y analizar algunos aspectos metodológicos de la biomonitorización en Paraguay. Metodología. En un estudio observacional se obtuvieron muestras de musgo de una zona sub-rural para ser trasplantadas en cinco sitios de alto tráfico vehicular en Asunción. Las muestras se dejaron a la intemperie durante 58 días y luego se recogieron para la medición de metales pesados por espectrometría de masas con fuente de plasma de acoplamiento inductivo. Se caracterizaron las briofitas y se consignaron todas las variables climatológicas durante el período de estudio. Resultados. Las concentraciones de plomo detectadas en los explantes de musgo expuestos al medio urbano fueron superiores a las de los musgos del bosque natural, mientras que los niveles de arsénico en estos últimos fueron superiores a los encontrados en los briófitos trasladados a la ciudad. No se encontraron niveles llamativos de cadmio y mercurio. Las briofitas utilizadas pertenecían a dos familias: Hypnaceae y Pilotrichaceae. Los rangos de temperatura, humedad relativa, viento y precipitación no alcanzaron niveles extremos durante el periodo estudiado. Conclusión. Los diferentes niveles de plomo medidos podrían ser subrogados de polución urbana mientras que el notorio nivel de arsénico en musgo de bosque natural apunta a otro tipo de fuentes como los incendios forestales. Se discuten varios aspectos de la metodología de biomonitorización.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[bryophyta]]></kwd>
<kwd lng="en"><![CDATA[lead]]></kwd>
<kwd lng="en"><![CDATA[arsenic]]></kwd>
<kwd lng="en"><![CDATA[environmental monitoring]]></kwd>
<kwd lng="en"><![CDATA[mass spectrometry]]></kwd>
<kwd lng="es"><![CDATA[briófita]]></kwd>
<kwd lng="es"><![CDATA[plomo]]></kwd>
<kwd lng="es"><![CDATA[arsénico]]></kwd>
<kwd lng="es"><![CDATA[monitoreo ambiental]]></kwd>
<kwd lng="es"><![CDATA[espectrometría de masas]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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