Division 3 Contaminants in an inorganic micronutrient fertiliser must not exceed the following limit values:
United Kingdom
| Contaminant | Limit values of contaminants expressed in mg, in relation to the total micronutrient content expressed in kg( mg/kg of total micronutrient content, which means boron (B), cobalt (Co), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo) and zinc (Zn)) |
|---|---|
| Arsenic (As) | 1 000 |
| Cadmium (Cd) | 200 |
| Lead (Pb) | 600 |
| Mercury (Hg) | 100 |
| Nickel (Ni) | 2 000 |