Prok.

As

Cd

Cu

Hg

Pb

Zn

2011

12.5

0.8

36

1.2

41

185

2012

11

1

58

0.2

53

246

2013

12

0.2

39

0.05

27

169

Gabr.

2011

23.3

0.54

82.5

1.9

53

158

2012

6

1

74

0.2

52

305

2013

23

1

64

0.05

38

178