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Table 7 Computed contaminate level of the five heavy metals

From: Evaluation of surface water quality indices and ecological risk assessment for heavy metals in scrap yard neighbourhood

Sample code

Zn

Ni

Cd

Cu

Pb

\(\sum {\mathbf{C}}_{f}^{i}\)

Contamination level

ODS-1

0.03

–

5.6

–

1.88

7.51

Light

ODS-2

0.02

–

6.0

–

–

6.02

Light

ODS-3

0.05

–

7.8

–

–

7.9

Light

ODS-4

0.03

–

6.2

–

–

6.23

Light

ODS-5

0.03

–

6.4

–

4.59

6.49

Light

ODS-6

0.04

–

4.9

–

–

4.94

Light

ODS-7

0.03

–

4.63

–

–

4.66

Light

ODS-8

0.02

–

4.9

–

–

4.92

Light

ODS-9

0.02

–

4.4

–

–

4.42

Light

ODS-10

0.02

–

2.87

–

–

2.8

Light

LFS-1

0.03

–

2.13

–

–

2.16

Light

LFS-2

0.03

–

3.33

–

–

3.36

Light

LFS-3

0.24

–

1.7

0.03

–

1.97

Light

LFS-4

0.26

–

3.67

–

–

3.93

Light

LFS-5

0.24

–

0.47

–

–

0.71

Light

Average value

0.073

–

4.33

0.03

3.24

4.57

Light

Contamination degree

NC

–

Heavy

NC

Heavy

Heavy

Â