| Occupation |
Hazardous Substance |
| Ultramarine Blue Workers |
Sulfur dioxide / Sulphur dioxide / Sulphurous Acid |
| Ultramarine Works
|
Hydrogen sulfide / Sulfretted hydrogen / Hydricsulphide sulfureted |
| Sulfur dioxide / Sulphur dioxide / Sulphurous Acid |
| Upholsterers
|
Methanol / Methyl alcohol |
| Organic dust |
| Uranium Miners
|
Uranium and its compounds |
| X rays, radium and other radioactive substances (i.e., Radiothorium, Mesothorium) |
| Uranium Workers
|
Uranium and its compounds |
| X rays, radium and other radioactive substances (i.e., Radiothorium, Mesothorium) |