Index | Range | Classification | SN | % | |
DC | <10 | Low degree of contamination factor | 12 | 100 | |
EF | ≤1 | Background contamination | 4 | 33.4 | |
1 - 2 | Minimal enrichment | 1 | 8.3 | ||
2 - 5 | Moderate enrichment | 1 | 8.3 | ||
5 - 20 | Significant enrichment | 5 | 41.7 | ||
20 - 40 | Very high enrichment | 1 | 8.3 | ||
Er | <40 | Low potential risk | 12 | 100 | |
RI | <150 | Low ecological risk | 12 | 100 | |
PLI | <1 | No pollution | 12 | 100 | |
Igeo | ≤0 | No-pollution | Pb, Co, Cu, Cr, Mn, Sr, Cd, V, Ni, As, Li, Ba, Mn | ||
0 - 1 | No pollution to moderately pollution | Sr, Fe, Zn | |||
1 - 2 | Moderately pollution to pollution | Fe, Zn | |||
2 - 3 | Pollution to strong pollution | Fe, Zn | |||