Artículos de revistas
Elementos traço em material particulado atmosférico de uma região agroindustrial do sudeste do Brasil
Fecha
2013-01-01Registro en:
Química Nova. Sociedade Brasileira de Química, v. 36, n. 4, p. 533-539, 2013.
0100-4042
10.1590/S0100-40422013000400009
S0100-40422013000400009
WOS:000320033600009
S0100-40422013000400009.pdf
9165109840414837
Autor
Universidade Estadual de Campinas (UNICAMP)
Universidade Estadual Paulista (Unesp)
Universidade Federal do Pará (UFPA)
Institución
Resumen
Trace element concentrations were measured in atmospheric particulate matter collected in 2009 and 2010, in a Brazilian region influenced by pre-harvest burning of sugar cane crops. For coarse particles, high concentrations of Al, Fe, K and Ca suggested that re-suspended soil dust was the main source of aerosol trace elements, subsequently confirmed by XRD analysis. High levels of K, Zn, As, Cd and Pb were found in fine particles, confirming the contribution of biomass burning and vehicle emissions, whereas Na, Al, K, Fe and Zn were the representative elements in ultrafine particles, influenced by a diversity of sources.