Fig 1.
Location map of (a) Iran (b) Khuzestan Province and (C) border of Ahvaz oil field and soil sampling sites.
Table 1.
Exposure factor for metals doses.
Fig 2.
Spatial distribution of heavy metals in the surface soil of Ahvaz Oilfield.
Table 2.
The summarized statistical parameters of heavy metal concentrations (mg/kg).
Fig 3.
PCA of heavy metals in the surface soil of Ahvaz Oilfield.
Fig 4.
Cluster analysis (CA) of heavy metals in the surface soil of Ahvaz Oilfield.
Table 3.
Correlation among heavy metal concentrations in Ahvaz oil-field.
Table 4.
Matrix of PCA loadings for toxic metal concentrations in the surface soils of Ahvaz oil field.
Table 5.
Statistical results of the Igeo of heavy metals in the study area.
Table 6.
Statistical results of the heavy metal enrichment factor (EF) in the study area.
Table 7.
Statistical results related to the PER factor of heavy metals in the study area.
Table 8.
Statistical results of Risk Index (RI) of heavy metals in the study area.
Table 9.
Health risk factors from heavy metal in the soil of Ahvaz oil field.