Platinum levels in urban soils from Palermo (Italy); Analytical method using voltammetry

All samples show concentrations of Pt above average upper crust values; concentrations were found in the ranges 0.6-2240 μ/kg d.w. We carried out linear regression analysis between total Pt concentrations in soils obtained in this work and Pt concentrations in leaves of Nerium oleander measured in previous researches. The high correlation coefficient obtained confirms the geographical distribution of the considered pollutant in the Palermo area.