Characterization of atmospheric aerosol in Buenos Aires, Argentina |
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| Authors: | R C Jasan R R Plá R Invernizzi and M Dos Santos |
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| Institution: | (1) Técnicas Analíticas Nucleares, Centro Atómico Ezeiza, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, 1429 Buenos Aires, Argentina;(2) Laboratorio de Contaminación del Aire, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, 1429 Buenos Aires, Argentina |
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| Abstract: | PM10 and PM2.5 samples were taken using a Gent sampler to characterize the atmospheric aerosol of Buenos Aires metropolitan
area. A total of 114 samples were collected from October 2005 to October 2006 at one urban site, every third day, for 24 h.
Samples were analyzed by neutron activation, and black carbon and mass concentration were determined. In both fractions, elemental
and gravimetric mass concentrations were compared with historical data. Enrichment factors, backward trajectories and factor
analysis were calculated. The attribution of pollution sources is discussed. |
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| Keywords: | Neutron activation analysis PM10 PM2 5 Airborne particulate matter Atmospheric aerosol |
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