Abstract

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.

Highlights

  • Las cortezas de diferentes especies arbóreas son empleadas como receptores pasivos de contaminación atmosférica por sus bondades para retener material particulado y sustancias gaseosas

  • The periurban area is characterised by major values of Ba and Cu linked to the maintenance of swimming pools, fungicides and biomass combustion

  • Podrían ser usados como indicadores de contaminación atmosférica

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Summary

Introduction

Las cortezas de diferentes especies arbóreas son empleadas como receptores pasivos de contaminación atmosférica por sus bondades para retener material particulado y sustancias gaseosas. Buenos Aires se debe a las actividades antropogénicas, como tránsito vehicular y quema de residuos.

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