Study of distribution of Pb, Zn and Cu in the bioaccumulative horizon of soils in the municipality of Iasi and its surrounding areas indicates differences of concentration between urban and rural spaces. In the urbanised area, the bulk of the concentration is Pb, with an average of 60.5 mg/kg, and Zn, with an average of 207.2 mg/kg, both elements being associated with urban technosols. Pb has a larger area distribution, being associated with industrial