INDUSTRY

SAMPLING POINTS

Pb

(mg kg−1)

Cd

(mg kg−1)

Cu

(mg kg−1)

Cr

(mg kg−1)

Ni

(mg kg−1)

BELOXXI

POINT 1

13.85

1.75

12.60

4.76

0.20

POINT 2

ND

10.45

8.65

ND

0.30

NESTLE

POINT 1

ND

5.20

4.10

ND

0.11

POINT 2

42.35

4.80

10.20

ND

0.20

AVANTI

POINT 1

ND

4.95

3.05

12.80

0.41

BETA GLASS

POINT 1

15.15

5.70

24.90

4.82

0.29

POINT 2

ND

8.15

2.75

ND

0.51

WHO Standard Tolerance Limit

300

3.00

50

100

50