INDEX

Range

Classification

SN

%

DC

<10

low degree of contamination factor

20

95.2

10 - 20

moderate degree of contamination

1

4.8

EF

2- 5

Moderate enrichment

2

9.52

5 - 20

Significant enrichment

10

47.62

20 - 40

Very high enrichment

9

42.86

Er

<40

Low potential risk

21

100

RI

<150

Low ecological risk

21

100

PLI

<1

No pollution

21

100

Igeo

0 - 1

Unpolluted to moderately polluted by

Pb, V, Cr, Co, As, Cd, Pb

>5

Extremely polluted by

Mn, Fe, Ni, Cu, Sr, Zn, Ba