Source Apportionment of PM10 and PM25 in Five Chilean Cities Using Factor Analysis |
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| Authors: | Ilias G Kavouras Petros Koutrakis Francisco Cereceda-Balic Pedro Oyola |
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| Institution: | 1. Environmental Science and Engineering Program, Department of Environmental Health, School of Public Health , Harvard University , Boston , Massachusetts , USA kavouras@hsph.harvard.edu;3. Environmental Science and Engineering Program, Department of Environmental Health, School of Public Health , Harvard University , Boston , Massachusetts , USA;4. Laboratory of Environmental Chemistry, Department of Chemistry , Universidad Técnica Federico Santa Maria , Valparaiso , Chile;5. Comisión Nacional del Medio Ambiente, Region Metropolitana , Santiago de Chile , Chile |
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| Abstract: | ABSTRACT Chile is a fast-growing country with important industrial activities near urban areas. In this study, the mass and elemental concentrations of PM10 and PM2.5 were measured in five major Chilean urban areas. Samples of particles with diameter less than 10 um (PM10) and 2.5 um (PM2.5) were collected in 1998 in Iquique (northern Chile), Valparaiso, Vina del Mar, Rancagua (central Chile), and Temuco (southern Chile). Both PM10 and PM25 annual mean concentrations (PM10: 56.9-77.6 u,g/m3; PM25: 22.4-42.6 u.g/m3) were significantly higher than the corresponding European Union (EU) and U.S. Environmental Protection Agency (EPA) air quality standards. Moreover, the 24-hr PM10 and PM25 U.S. standards were exceeded infrequently for some of the cities (Rancagua and Valparaiso). |
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