INQUISUR   21779
INSTITUTO DE QUIMICA DEL SUR
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Metals, metalloids and ions determination in size-fractionated soils collected in an industrial city of Argentina
Autor/es:
ANABELLA MORALES DEL MASTRO; MARCELO PEREYRA; AGUSTIN LONDONIO; VICTORIA PEREYRA; RAÚL JIMÉNEZ REBAGLIATI; LAURA DAWIDOWSKI; GOMEZ DARIO; PATRICIA SMICHOWSKI
Lugar:
FIGUEIRA DA FOZ
Reunión:
Conferencia; COLLOQUIUM SPECTROSCOPICUM INTERNATIONALE XXXIX; 2015
Institución organizadora:
UNIVERSIDAD NOVA DE LISBOA y UNIVERSIDAD DE COIMBRE
Resumen:
Inthe city of Bahía Blanca (Argentina), semiarid soils are affected byindustrial and agricultural activities, traffic and increasing urbanization. Inthis study 16 soil samples (superficial and sub-superficial) were collected andthen sieved in two fractions (A<37µm, and 37<B<50 µm) for subsequent elementalanalysis. Major, minor and trace elements namely, Al, As, Ba, Ca, Cd, Cr, Cu,Fe, Mg, Mn, Mo, Ni, Pb, Sb, Ti, V and Zn were determined by inductively coupledplasma optical emission spectrometry (ICP OES). In addition, Cl-, F-,SO42-, K+, Na+ and NH4+were determined by high performance liquid chromatography (HPLC) after anaqueous extraction. Thestudy showed that mean elemental concentration ranged from <0.3 µg g-1(Sb) to 14.6±0.6% (Ca). Ions concentrations in the soluble fraction measured atmg g-1 levels were in the order Cl- > Na+ @ SO42- > K+ > NO3-.Three indicators, namely, (i)coefficient of variation, (ii)coefficient of divergence and (iii)ratio of elemental concentration with respect to Ca were used to assesschemical, spatial and inter-profile variability. Chloride > Ca > Na+> Mo > SO42-, dominated the variability indicatingthat these are key chemical markers for future assessment of airborne particlesin the area. Thechemical profiles of topsoil obtained in this study will be used to study soilresuspension as a source of airborne particulate matter in a forthcomingreceptor model analysis. POSTER. BOOK OF ABSTRACTS PAGINA 247