Table 4. Feed safety regulations of EU1)
| Hazardous materials | Feed type | Animal type | Safe level |
| Heavy metals |
| Arsenic | Complete feed | Livestock | 2 mg/kg |
| Lead | Complete feed | Livestock | 5 mg/kg |
| Fluorine | Complete feed | Ruminant | 30–50 mg/kg |
| | | Pig | 100 mg/kg |
| | | Poultry | 350 mg/kg |
| Mercury | Complete feed | Dog and cat | 0.4 mg/kg |
| | | Others | 0.1 mg/kg |
| Cadmium | Complete feed | Ruminant | 1 mg/kg |
| Mycotoxins |
| Aflatoxin B1 | Complete feed | Ruminant | 50 µg/kg |
| | | Pigs and poultry | 20 µg/kg |
| Pesticides |
| Aldrin | Complete feed | Livestock | 10 µg/kg |
| Dieldrin | Complete feed | Livestock | 0.2 mg/kg |
| Camphechlor | Complete feed | Livestock | 0.1 mg/kg |
| Chlordane | Complete feed | Livestock | 20 µg/kg |
| DDT | Complete feed | Livestock | 20 µg/kg |
| Endosulfan | Complete feed | Livestock | 0.1 mg/kg |
| Others |
| Nitrites | Complete feed | Pet | 15 mg/kg |
| Hydrocyanic acid | Complete feed | Chick | 10 mg/kg |
| | | Others | 50 mg/kg |
| Free gossypol | Complete feed | Poultry | 100 mg/kg |
| | | Pig | 60 mg/kg |
Data from Official Journal of the European Communities [95].