MACNBR 00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
capítulos de libros
Título:
Analisis multielemental de cortezas de árboles de Fraxinus Pennsylvanica a lo largo de un gradiente urbano-periurbano
Autor/es:
CASTRO M, NAVARRO L, PERELMAN P. Y FAGGI A
Libro:
Bioindicadores de la contaminacion Ambiental
Editorial:
DUNKEN
Referencias:
Lugar: CABA; Año: 2008; p. 22 - 40
Resumen:
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Multielemental analysis of Fraxinus pennsylvanica bark along an urban to
periurban gradient in Buenos Aires metropolis. In Buenos Aires metropolitan area a multielemental
analysis of bark samples of Fraxinus pennsylvanica have been performed. The samples were analysed using
ICP-OES. The resulting data have been treated by an ANOVA and by an ordination
technique based on reciprocal averaging (Detrended Correspondence Analysis).
The results allow us to confirm that the major contamination source is of
geogenic origin with the presence of Ba, Al, Mg and Fe being principal soil
components carried out by wind. Also part of these elements and the presence of
Cr, Zn, Pb, Mg and Ni in the urban areas indicate anthropogenic influence and
are suspected to be associated to vehicle and related economic activities. The
periurban area is characterised by major values of Ba and Cu linked to the
maintenance of swimming pools, fungicides and biomass combustion.
