Trace elements analysis of aerosol samples from some Romanian urban zones

Aerosols deposits on filters from ten Romanian towns with different kinds and levels of industrial development have been studied. The concentration of elements with Z~16 have been measured by particle - induced X-ray emission (PIXE) analysis. It has been determined 15 elements: S, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Hg and Pb.