Sample no

PLI value

Pollution level

1

1.289

Moderately to unpolluted

2

1.372

Moderately to unpolluted

3

1.302

Moderately to unpolluted

4

1.474

Moderately to unpolluted

5

1.29

Moderately to unpolluted

6

1.398

Moderately to unpolluted

7

1.308

Moderately to unpolluted