Additional files [RJEE Vol. 4 (3). 2019 – 4]

• Fig. 1. Locations of sampling points
• Fig. 2. (a-i) Spatial distribution of heavy metals content in the topsoil
• Fig. 3. Graphical display of the first three RCs of the PCA analysis a) RC1 vs. RC2; b) RC1 vs. RC3
• Fig. 4. Relationships between humus content, particle size distribution and pH and scores of the first three
• Fig. 5. a) Nemerow Comprehensive Pollution Index, and b) Saet-based Comprehensive Pollution Index