Table 3 Heavy metal concentrations found in Costarican animal feed samples
Metal/Feed type | Concentration range, μg/kga,b | |||||
|---|---|---|---|---|---|---|
Bovine | Fish | Poultry | Shrimp | Swine | Guideline | |
Arsenic | Not detected | 19.3 – 25.4 | 48.5 – 90.4 | 37.8 – 53.5 | 7.7 – 30.5 | 2000 |
Mercury | 60.2 – 186.8 | 50.0 – 55.9 | 35.9 – 38.6 | 39.3 – 41.8 | 38.5 – 71.4 | 100 |
Lead | Not detected | 125.7 – 127.0 | Not detected | Not detected | 132.9 – 151.7 | 5000 |
Cadmium | 113.1 – 156.7 | 39.9 – 40.3 | 35.3 – 107.9 | 19.3 – 35.0 | 59.5 – 61.2 | 1000/500 |