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Gases, irritants, vapors, and dusts
| N (%) | |
|---|---|
| Carbon monoxide | 81 (58.7) |
| Cyanide | 10 (7.2) |
| Hydrogen sulfide | 7 (5.1) |
| Smoke | 7 (5.1) |
| Unspecified gas | 6 (4.3) |
| Sulfur dioxide | 5 (3.6) |
| Miscellaneousa | 22 (15.9) |
| Class total | 138 (100) |
aIncludes dust, asbestos, carbon disulfide, chlorine, nitrogen oxides, petroleum vapors, arsine, carbon dioxide, chloramine, phosgene, phosphine, polyurethane vapors, radon, and silica
