Figures & data
Figure 1. Study area and location of the sampling points for soil collection.
Table 1. Descriptive statistics of physico-chemical soil properties.
Table 2. Descriptive statistics of heavy metal content in soil samples.
Figure 2. Percentage of heavy metals fractions among different solid phases (a: at soil sampling depth of 0–5 cm; b: at soil sampling depth of 5–25 cm; c: at soil sampling depth of 25–50 cm).
Figure 3. Percentage of overall heavy metals lability (a: at soil sampling depth of 0–5 cm; b: at soil sampling depth of 5–25 cm; c: at soil sampling depth of 25–50 cm).
Table 3. Descriptive statistics of heavy metal enrichment factor (EF).
Figure 4. Lithogenic and anthropogenic proportion for heavy metals at each soil sampling depth.
Table 4. Pearson’s correlation matrix of heavy metals in the soil samples.
Table 5. Total variance and factor loadings of the contents of heavy metals for the first two components having eigenvalue of >1.
Figure 5. PCA loading 3D plot for heavy metals at overall soil sampling depths.
Figure 6. Cluster dendogram for heavy metals by Ward’s method (Pearson’s r) at overall soil sampling depths.
Figure 7. Percentage of soil samples having EF values less or greater than 2.
