title: Speciation of vanadium in urban, industrial and volcanic soils by a modified Tessier method.
abstract: Vanadium (V) concentrations in industrial, urban and volcanic soils were sequentially extracted using a modified Tessier's method. The voltammetric technique was used to determine V concentrations in solutions obtained from the various extraction steps. At the reference stations, the V concentrations (sum of four individual fractions) in soils ranged from 0.72 to 0.24 g kg(-1) dry weight (d.w.) with a mean value of 0.18 g kg(-1) d.w. V concentrations in soils of the Palermo urban area ranged from 0.34 to 2.1 g kg(-1) d.w., in the Milazzo (industrial) area between 0.26 and 5.4 g kg(-1) d.w. and in the volcanic area near Mt. Etna from 0.91 to 2.9 g kg(-1) d.w. When the V concentrations around Mt. Etna were compared with those obtained at the reference stations, it was confirmed that Mt. Etna is a continuous source of V. In all the samples analyzed, the majority of V (from 94 to 100%) was detected in the fourth fraction.
authors.affiliation: Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Viale delle Scienze, I-90128, Palermo, Italy.
authors.forename: Santino
authors.initials: S
authors.lastname: Orecchio
authors.affiliation: Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Viale delle Scienze, I-90128, Palermo, Italy.
authors.forename: Diana
authors.initials: D
authors.lastname: Amorello
authors.affiliation: ARPA Lombardia, Milano, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Barreca
authors.affiliation: Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Viale delle Scienze, I-90128, Palermo, Italy.
authors.forename: Alberto
authors.initials: A
authors.lastname: Pettignano
mesh_terms: D005591:Chemical Fractionation; D002947:Cities; D055664:Electrochemical Techniques; D004784:Environmental Monitoring; D007221:Industry; D007558:Italy; D012989:Soil Pollutants / Q000032:analysis*; D014639:Vanadium / Q000032:analysis*; D018707:Volcanic Eruptions
chemical_list: D012989:Soil Pollutants; D014639:Vanadium