MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
artículos
Título:
On the use of Morus alba bark as a comparative indicador of atmospheric pollution in Buenos Aires and Mendoza (Argentina) Aceptado Arvore
Autor/es:
PATRICIA E. PERELMAN; ANA FAGGI; M.A.CASTRO; EDUARDO MARTINEZ CARRETERO
Revista:
REVISTA ÝRVORE
Editorial:
SUPREMA Gráfica e Editora Ltda.
Referencias:
Lugar: Viscosa - Minas Gerais; Año: 2010 vol. 34 p. 505 - 505
ISSN:
0100-6762
Resumen:
ABSTRACT – A comparative study of elements deposited on tree bark was carried out for urban and periurban areas of two of the most important cities in Argentina. The content of Fe, Mg, Al, Mn, Zn, Pb, Ba, Cr, Hg, Cu, Ni, Cd and Sb was determined by inductively coupled plasma atomic emission spectrometry (ICP-OES) in Morus alba tree bark collected in the cities of Buenos Aires and Mendoza. The main air pollutants detected in the Buenos Aires urban area were Ba, Cr, Cu and Ni and indicate significative difference from the Mendoza urban and periurban areas. Significantly, higher concentrations of Zn, Ba, Cr and Cu were recorded in the periurban area of the city of Buenos Aires than in Mendoza. Bark samples were strongly influenced by dust and show Al, Fe, Mg and other element accumulations that indicate that soil particles were carried out by wind. Elements like Ba and Zn, commonly linked to traffic emissions, showed the highest concentrations in the Buenos Aires metropolitan area, possibly due to more intensive vehicular traffic. Our results indicated that intensity of vehicular traffic and not city structure is responsible for air pollution.