PM10 characterization and source apportionment at two residential areas in Bogotá =...
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- Título: PM10 characterization and source apportionment at two residential areas in Bogotá = Caracterización y contribución de fuentes al PM10 en dos áreas residenciales en Bogotá
- Autor: Rojas Roa, Néstor Yezid; Pachón, Jorge E; Russell, Armistead; Vargas, Freddy A
- Publicación original: Atmospheric Pollution Research; Vol 3, No. 1, 2012
- Descripción física: PDF
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Nota general:
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Bogota is the largest city in Colombia and is considered one of the most ones polluted in Latin America. The annual average PM10 concentration in the city is 55 ?g/m3, being as high as 90 ?g/m3 in the western region of the city. In this study, two sites in the western region were selected to assess the PM10 contribution from different sources. Two sets of fifty five 24–hour PM10 samples were taken at each site on quartz and Teflon filters. Chemical analysis of these samples was conducted to determine the ion, metal, and organic and elemental carbon concentrations. Ionic balance and mass closure were performed to check the consistency of chemical analysis.
While it is true that source apportionment studies have been conducted worldwide, this is the first time that the Positive Matrix Factorization (PMF) model is applied in Bogota using full PM10 chemical speciation data, including carbonaceous materials, metals and ions. It is also the first time that a receptor model is applied simultaneously in two sites of the city. We aim that the results from this study will support environmental authorities in designing effective air pollution abatement measures in the city.
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Bogota is the largest city in Colombia and is considered one of the most ones polluted in Latin America. The annual average PM10 concentration in the city is 55 ?g/m3, being as high as 90 ?g/m3 in the western region of the city. In this study, two sites in the western region were selected to assess the PM10 contribution from different sources. Two sets of fifty five 24–hour PM10 samples were taken at each site on quartz and Teflon filters. Chemical analysis of these samples was conducted to determine the ion, metal, and organic and elemental carbon concentrations. Ionic balance and mass closure were performed to check the consistency of chemical analysis.
- Notas de reproducción original: Digitalización realizada por la Biblioteca Virtual del Banco de la República (Colombia)
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Notas:
- Bogotá (Colombia)
- Resumen: Particulate matter; Source apportionment; Receptor modeling; Positive matrix factorization
- © Derechos reservados del autor
- Colfuturo
- Forma/género: texto
- Idioma: inglés
- Institución origen: Biblioteca Virtual del Banco de la República
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Encabezamiento de materia:
