INDEX | Range | Classification | Samples | % |
DC | <10 | low degree of contamination factor | 37 | 100 |
EF | 2 - 5 | Moderate enrichment | 8 | 21.6 |
5 - 20 | Significant enrichment | 14 | 37.8 | |
20 - 40 | Very high enrichment | 15 | 40.6 | |
Er | <40 | Low potential risk | 37 | 100 |
RI | <150 | Low ecological risk | 37 | 100 |
PLI | <1 | No pollution risk | 37 | 100 |
Igeo | 0 - 1 | Unpolluted to moderated pollution risk from | Li, V, Cr, Co, As, Cd, Pb | |
3 - 4 | Strong pollution risk from | Ba | ||
>6 | Extreme pollution risk from | Mn, Fe, Ni, Cu, Zn, Sr |