Chemical

Average con. of heavy metal (µg∙g⁻¹) in present study

Guidelines

Percent (ratios) incidence of effects^*

ERL ERM

ERM

Cadmium

0.85

1.2

9.6

6.6

36.6

65.7

Chromium

14.51

81

370

2.9

21.1

95.0

Copper

14.28

34

270

9.4

29.1

83.7

Lead

12.64

46.7

218

8

35.8

90.2

Nickel

36.65

20.9

51.6

1.9

16.7

16.9

Zinc

84.56

150

410

6.1

47.0

69.8