Propiedades ópticas y químicas de las fracciones de material particulado atmosférico relacionadas con las masas de aire en el centro de la Península Ibérica

1. S. Mogo
2. Victoria E. Cachorro Revilla
3. M. Sorribas
4. Angel Máximo de Frutos Baraja

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Resumen

From December 2003 to June 2004 approximately weekly aerosol samples were collected in Valladolid, Spain. Gravimetric measurements were performed on the four particulate matter fractions: TSP, PM10, PM2.5 and PM1. The samples were analyzed for major ions by ionchromatography. The optical properties of the fine particles are studied through the absorption coefficients, σa, in the visible range and the spectral shape of σa was analyzed by deriving a parameter, αa, similar to the Ångström exponent used for the extinction. Aerosol properties are classified according to their dependence on air mass origin.

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