TABLE 1.
Potential ecological indices (Ei) for heavy metals and potential ecological risk index (RI) of heavy metals in all samples.
| Name |
Potential ecological risk indices for single heavy metal (Ei) |
|||||||||
| As | Cd | Cu | Hg | Ni | Cr | Pb | Zn | RI | ||
| S1 | 274.4 | 43427.0 | 24786.4 | 5849.1 | 59.1 | 27.7 | 293.9 | 86.4 | 74804.0 | |
| S2 | 80.5 | 27356.8 | 2185.0 | 11313.2 | 48.8 | 16.4 | 224.0 | 39.1 | 41263.7 | |
| S3 | 111.3 | 16597.3 | 1347.0 | 2996.2 | 36.0 | 4.8 | 175.0 | 42.9 | 21310.4 | |
| S4 | 93.4 | 38845.9 | 1922.7 | 4196.2 | 49.5 | 18.1 | 309.8 | 73.5 | 45509.2 | |
| S5 | 54.0 | 15089.2 | 1395.1 | 4075.5 | 29.8 | 10.8 | 153.8 | 46.3 | 20854.5 | |
| S6 | 29.8 | 9048.6 | 1086.0 | 4279.2 | 29.9 | 9.9 | 158.0 | 41.3 | 14682.8 | |
| S7 | 41.0 | 23918.9 | 1695.4 | 7849.1 | 42.9 | 15.0 | 193.8 | 83.1 | 33839.3 | |
| S8 | 31.3 | 17764.9 | 1111.5 | 2528.3 | 33.0 | 3.8 | 86.3 | 47.2 | 21606.2 | |