Zn

Ba

Se

As

Hg

Cr

Cd

Pb

Heavy Metal

16.0

14.0

0.7

ND

ND

7.2

4.5

2.8

Minimum

500.0

489.0

342.0

22.4

25.0

59.0

75.9

96.7

Maximum

159.6

156.9

93.9

16.7

12.3

36.9

36.9

39.2

Average

3.8

3.5

4.9

1.2

1.7

1.8

2.2

1.1

SD

2.4

2.2

5.2

6.8

13.7

4.9

6.0

2.7

RSD (%)

ΜΆ

1000

500

25

60

60

75

90

ISO 8124-3 limits

0

0

0

0

0

0

5

5

% of total samples exceeding limits