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Table 1 Annually accepted metal loading rates.

From: Recycling Biowaste – Human and Animal Health Problems

Metal (g)/hectar/year

KRAV

SNFS

Lead (Pb)

50

25

Cadmium (Cd)

1

0.75

Copper (Cu)

500

300

Chromium (Cr)

50

40

Mercury (Hg)

1.5

1.5

Nickel (Ni)

50

25

Zinc (Zi)

700

600

  1. KRAV: Swedish certification body for organic farming, loading rates apply to fertilisers, soil conditioners, pesticides and all other products applied to soil
  2. SNFS: Regulation from Swedish EPA, loading rates applies to sewage sludge (SNFS 1994:2 and 1998:4)
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Acta Veterinaria Scandinavica

ISSN: 1751-0147