MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
artículos
Título:
Metals associatedwithairborneparticulatematterinroaddustandtreebark
Autor/es:
FABIƁN G.FUJIWARA; DARIO GOMEZ; LAURA DAWIDOWSKI; PATRICIA E. PERELMAN; ANA FAGGI
Revista:
ECOLOGICAL INDICATORS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2010 p. 240 - 240
ISSN:
1470-160X
Resumen:
Multielemental profiles in bark suber of green ash trees and road dust collected in three representative areas of Buenos Aires, Argentina were assessed as potential air pollution indicators. Ten elements: Al, Ba, Cr, Cu, Fe, Mg, Mn, Ni, Pb and Zn, were measured by inductively coupled plasma optical emissions spectrometry and their concentrations in the Buenos Aires road dust are reported for the first time. Mea- sured concentrations and enrichment factors were used to characterize the environmental signatures of air pollution sources with impact in the studied areas. The analysis based on enrichment factors pro- vided a common framework for the comparison of our results on tree bark and road dust with PM10 concentrations measured in previous studies. This unified analysis proved to be a valuable tool showing the consistency of our findings. The analysis based on either concentration profiles or enrichment factors showed that bark clearly differentiated sampling areas, resulting to be a better air pollution indicator than road dust. Road dust did not provide a clear differentiation between areas; this might be indicative of a certain degree of spatial mixture on street surfaces.