摘要:The aim of this study was to assess and evaluation of the amount and severity of heavy metal contamination of residential areas soils of the Masjed-i-Soleiman (MIS) City, which located on a wide oil field (Masjed-i-Soleiman (MIS) oil field) with abundant springs. The present degree and spatial distribution of heavy metal concentrations in 25 topsoil samples in the Masjed-i-Soleiman (MIS) were examined. Analytical determinations were performed by XRF. Six metals, namely Co, Cr, Cu, Ni, Pb and Zn were considered. The abundance of heavy metals measured in these soils decreases as follows: Ni>Zn>Cr>Cu>Pb>Co. The major sources for Pb, Cu, Zn and Cr contamination in Masjed-i-Soleiman (MIS) City are most possibly emissions from vehicles and air conditioning coolants and Ni contamination is hydrocarbon seepage. Total concentrations of Cr, Cu, Ni and Zn in some soils exceed the background values. Direct ingestion of soil by children and inhalation of contaminated windblown dust may contribute largely to the accumulation of heavy metal in human.