| Workplace | Insoluble Ni | Soluble Ni |
| Offices | Not detected | Not detected |
| Sander | Not measured | Not measured |
| Demineralization | 0.0203 | 0.0012 |
| Cranes | Not detected | Not detected |
| Dome | 0.0066 | 0.001 |
| Dome Caretaker | Not detected | Not detected |
| Electrical Furnaces | 0.0048 | 0.0002 |
| Granulation | Not detected | Not detected |
| Steel Works | Not detected | 0.0012 |
| Forge Caretaker | 0.0059 | Not detected |