<?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>2215-3470</journal-id>
<journal-title><![CDATA[Uniciencia]]></journal-title>
<abbrev-journal-title><![CDATA[Uniciencia]]></abbrev-journal-title>
<issn>2215-3470</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional, Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2215-34702024000100517</article-id>
<article-id pub-id-type="doi">10.15359/ru.38-1.28</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del riesgo en la salud del personal del Parque Nacional Volcán Poás, Costa Rica, por exposición a los gases SO2 y H2S]]></article-title>
<article-title xml:lang="en"><![CDATA[Health risk assessment of staff at Poás Volcano National Park, Costa Rica, due to exposure to SO2 and H2S gasses]]></article-title>
<article-title xml:lang="pt"><![CDATA[Avaliação do risco à saúde da equipe do Parque Nacional do Vulcão Poás, Costa Rica, devido à exposição aos gases SO2 e H2S]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Alpízar]]></surname>
<given-names><![CDATA[José David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sibaja-Brenes]]></surname>
<given-names><![CDATA[José Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mora-Barrantes]]></surname>
<given-names><![CDATA[José Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Cruz]]></surname>
<given-names><![CDATA[María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Borbón-Alpízar]]></surname>
<given-names><![CDATA[Henry]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Retana-Díaz]]></surname>
<given-names><![CDATA[Alexa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfaro-Solís]]></surname>
<given-names><![CDATA[Rosa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Escuela de Química Laboratorio de Química de la Atmósfera]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Escuela de Química Laboratorio de Química de la Atmósfera]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Escuela de Química Laboratorio de Química de la Atmósfera]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Observatorio Vulcanológico y Sismológico de Costa Rica ]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Nacional Escuela de Química Laboratorio de Química de la Atmósfera]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Nacional Escuela de Química Laboratorio de Química de la Atmósfera]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,Universidad Nacional Escuela de Química Laboratorio de Química de la Atmósfera]]></institution>
<addr-line><![CDATA[Heredia ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>38</volume>
<numero>1</numero>
<fpage>517</fpage>
<lpage>532</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S2215-34702024000100517&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S2215-34702024000100517&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S2215-34702024000100517&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  (Objetivo)  Verificar el cumplimiento de los niveles de exposición a SO2 y H2S, de los guardaparques del Parque Nacional Volcán Poás, tomando como referencia la norma internacional OSHA.  (Metodología)  Se estudió la concentración del SO2 desde setiembre 2018, hasta diciembre 2019 y para el H2S de febrero 2019, hasta diciembre 2019, haciendo uso de equipos de detección portátiles MultiRae. Los puntos de muestreo se colocaron en la casa de guardaparques, la caseta de entrada, el centro de visitantes y el mirador. El nivel de riesgo químico se determinó considerando: la salud de los trabajadores, el tiempo de exposición, el equipo de seguridad, las capacitaciones y los valores de TWA y STEL obtenidos.  (Resultados)  El valor más alto de la concentración de SO2 fue de 16,0 ppm, se registró en el centro de visitantes, y para el de H2S fue de 45 ppm (casa de guardaparques). La concentración promedio de los gases estuvo cercana al límite de detección para ambos gases, sugiriendo que los gases, en general, no se dirigen hacia las zonas de visitación. Ningún puesto de medición superó los 2 ppm para el SO2 en 8 horas (TWA). Sin embargo, en el centro de visitantes y en el mirador para visitantes, se superó los 5 ppm de SO2 en 15 minutos (STEL), con concentraciones de 10,1 ppm y 7,4 ppm, respectivamente.  (Conclusiones)  Se obtuvieron niveles bajos de riesgo químico, para ambos gases, en los puntos muestreados, a excepción del punto del centro de visitantes, donde el nivel de riesgo fue medio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  (Objective)  Verify the levels of exposure to SO2 and H2S of park rangers at the Poás Volcano National Park, using OSHA international standards as a reference.  (Methodology)  SO2 and H2S concentrations were studied from September 2018 to December 2019 and February 2019 to December 2019, respectively using MultiRae portable detection equipment. Sampling points were placed at the ranger&#8217;s house, the entrance station, the visitors&#8217; center, and the overlook. The level of chemical risk was determined taking into consideration: the workers&#8217; health, exposure time, safety equipment, training, and TWA and STEL values obtained.  (Results)  The highest SO2 concentration was 16.0 ppm, which was recorded at the visitor center, while the highest H2S concentration was 45 ppm, which was obtained from the park ranger&#8217;s house. The average gas concentration was close to the detection limit for both gasses, suggesting that gasses, in general, are not directed toward visitors&#8217; areas. No measurement station exceeded 2 ppm for SO2 in 8 hours (TWA). However, in the visitors&#8217; center and the overlook, SO2 exceeded 5 ppm in 15 minutes (STEL) with concentrations equal to 10.1 ppm and 7.4 ppm, respectively.  (Conclusions)  Low levels of chemical hazard were obtained for both gasses at the sampling points, except for the visitors&#8217; center which had a medium level.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  (Objetivo)  Verificar o cumprimento dos níveis de exposição aos gases SO2 e H2S dos guardas florestais do Parque Nacional do Vulcão Poás, tomando como referência a norma internacional OSHA.  (Metodologia)  Foi estudada a concentração de SO2 de setembro de 2018 a dezembro de 2019 e a de H2S de fevereiro de 2019 a dezembro de 2019, usando o equipamento de detecção portátil MultiRae. Os pontos de amostragem foram colocados na casa do guarda florestal, na guarita de entrada, no centro de visitantes e no mirante. O nível de risco químico foi determinado considerando: a saúde dos trabalhadores, o tempo de exposição, o equipamento de segurança, o treinamento e os valores TWA e STEL obtidos.  (Resultados)  O valor mais alto para a concentração de SO2 foi de 16,0 ppm, registrado no centro de visitantes, e para H2S foi de 45 ppm (casa do guarda florestal). A concentração média dos gases estava próxima do limite de detecção para ambos os gases, sugerindo que os gases, em geral, não são direcionados para as zonas de visitação. Nenhum local de medição excedeu 2 ppm para SO2 em 8 horas (TWA). Entretanto, no centro de visitantes e no mirante para visitantes, o SO2 excedeu 5 ppm de SO2 em 15 minutos (STEL), com concentrações de 10,1 ppm e 7,4 ppm, respectivamente.  (Conclusões)  Foram obtidos baixos níveis de risco químico para ambos os gases nos pontos amostrados, com exceção do centro de visitantes, onde o nível de risco foi médio.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sulfuro de hidrógeno]]></kwd>
<kwd lng="es"><![CDATA[dióxido de azufre]]></kwd>
<kwd lng="es"><![CDATA[riesgo químico]]></kwd>
<kwd lng="es"><![CDATA[exposición laboral]]></kwd>
<kwd lng="es"><![CDATA[volcán Poás]]></kwd>
<kwd lng="es"><![CDATA[Costa Rica.]]></kwd>
<kwd lng="en"><![CDATA[Sulfur dioxide]]></kwd>
<kwd lng="en"><![CDATA[hydrogen sulfide]]></kwd>
<kwd lng="en"><![CDATA[chemical hazard]]></kwd>
<kwd lng="en"><![CDATA[occupational exposure]]></kwd>
<kwd lng="en"><![CDATA[Poás Volcano]]></kwd>
<kwd lng="en"><![CDATA[Costa Rica.]]></kwd>
<kwd lng="pt"><![CDATA[sulfeto de hidrogênio]]></kwd>
<kwd lng="pt"><![CDATA[dióxido de enxofre]]></kwd>
<kwd lng="pt"><![CDATA[risco químico]]></kwd>
<kwd lng="pt"><![CDATA[exposição ocupacional]]></kwd>
<kwd lng="pt"><![CDATA[vulcão Poás]]></kwd>
<kwd lng="pt"><![CDATA[Costa Rica.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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