Sample number

Pollution load index

Geo accumulation index

1

Moderately to unpolluted

Uncontaminated to moderately contaminated

2

Moderately to unpolluted

Uncontaminated to moderately contaminated

3

Moderately to unpolluted

Uncontaminated to moderately contaminated

4

Moderately to unpolluted

Moderately contaminated

5

Moderately to unpolluted

Uncontaminated to moderately contaminated

6

Moderately to unpolluted

Uncontaminated to moderately contaminated

7

Moderately to unpolluted

Uncontaminated to moderately contaminated