Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica
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Universidad Nacional, Costa Rica
2014
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| Acceso en línea: | https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7230 |
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AMBIENTALES72302019-08-23T21:04:29Z Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica Comparación de la composición química de partículas PM10 y PM2,5 colectadas en ambientes urbanos y zonas volcánicas del área metropolitana de Costa Rica Herrera, Jorge Rojas, José F. Martínez, María Avard, Geoffroy De Moore, Martin Sáenz, Wendy Beita, Víctor H. Rodríguez, Agustín Agüero, Alejandro PM10 PM2 5 air pollution urban pollution volcanic particles PM10 PM2 5 contaminación atmosférica contaminación urbana partículas volcánicas PM10 and PM2,5 were sampled simultaneously in urban and volcanic environments in the Metropolitan Area of Costa Rica from October to November 2012. Higher mass concentrations (42-29 μgm-3) of PM10 and PM2,5 were found at industrial and commercial areas with high traffic flow (La Uruca, Heredia and Belen) compared with those found in the volcanic areas. The daily concentrations of PM10 and PM2,5 obtained in the Poas Volcano ranged from 3 -14 μgm-3 and 2-11 μgm-3, respectively. However the acidity of the collected particles in the Poas volcano was higher than those sampled in urban environments probably due to a lower occurrence rate of neutralization. The contribution of secondary ions was more important to the volcanic PM10 composition (around 40%), unlike the PM10 collected in urban areas. Se muestrearon en forma simultánea partículas PM10 y PM2,5 en ambientes urbanos y volcánicos del área metropolitana de Costa Rica, durante octubre y noviembre de 2012. En las áreas industriales y comerciales de alto flujo vehicular (La Uruca, Heredia y Belén) se presentaron concentraciones másicas significativamente superiores (42 – 29 µgm-3) de PM10 y PM2,5 en comparación con las registradas en la zona volcánica. Las concentraciones diarias de PM10 y PM2,5 obtenidas en el volcán Poas variaron entre 3 -14 µgm-3 y 2 - 11 µgm-3, respectivamente. Sin embargo, la acidez de las partículas colectadas en el Poás es mayor a las correspondientes a ambientes urbanos debido probablemente a una ocurrencia menor de tasas de neutralización. El aporte de iones secundarios resultó ser la principal contribución (40%) a la composición de las PM10 volcánicas a diferencia de las colectadas en centros urbanos. Universidad Nacional, Costa Rica 2014-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Journal articles Artículo Artigo application/pdf https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7230 10.15359/rca.48-2.5 Tropical Journal of Environmental Sciences; Vol. 48 No. 1 (2014): Julio-Diciembre; 54-64 Revista de Ciencias Ambientales; Vol. 48 Núm. 1 (2014): Julio-Diciembre; 54-64 Revista de Ciencias Ambientales; v. 48 n. 1 (2014): Julio-Diciembre; 54-64 2215-3896 1409-2158 spa https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7230/7436 |
| institution |
Universidad Nacional de Costa Rica |
| collection |
Revista de Ciencias Ambientales |
| language |
spa |
| format |
Online |
| author |
Herrera, Jorge Rojas, José F. Martínez, María Avard, Geoffroy De Moore, Martin Sáenz, Wendy Beita, Víctor H. Rodríguez, Agustín Agüero, Alejandro |
| spellingShingle |
Herrera, Jorge Rojas, José F. Martínez, María Avard, Geoffroy De Moore, Martin Sáenz, Wendy Beita, Víctor H. Rodríguez, Agustín Agüero, Alejandro Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica |
| author_facet |
Herrera, Jorge Rojas, José F. Martínez, María Avard, Geoffroy De Moore, Martin Sáenz, Wendy Beita, Víctor H. Rodríguez, Agustín Agüero, Alejandro |
| author_sort |
Herrera, Jorge |
| title |
Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica |
| title_short |
Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica |
| title_full |
Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica |
| title_fullStr |
Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica |
| title_full_unstemmed |
Comparison of the chemical composition of PM10 and PM2.5 particles collected in urban environments and volcanic areas of metropolitan Costa Rica |
| title_sort |
comparison of the chemical composition of pm10 and pm2.5 particles collected in urban environments and volcanic areas of metropolitan costa rica |
| title_alt |
Comparación de la composición química de partículas PM10 y PM2,5 colectadas en ambientes urbanos y zonas volcánicas del área metropolitana de Costa Rica |
| publisher |
Universidad Nacional, Costa Rica |
| publishDate |
2014 |
| url |
https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7230 |
| work_keys_str_mv |
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