Mean cumulative exposure, at end of follow-up, to investigated exposure factors among 1687 male long-term workers employed in 1913–2003 in the Norwegian silicon carbide industry, by department affiliation
| Total dust (mg×years/m3) | Respirable dust (mg×years/m3) | Respirable SiC (mg×years/m3) | Respirable quartz (mg×years/m3) | Respirable cristobalite (mg×years/m3) | Fibre (fibres×years/cm3) | |||||||||||||
| Department | GM | GSD | AM | GM | GSD | AM | GM | GSD | AM | GM | GSD | AM | GM | GSD | AM | GM | GSD | AM |
| Furnace | 52 | 3.6 | 120 | 7.0 | 3.2 | 14 | 1.0 | 4.7 | 3.3 | 0.058 | 4.1 | 0.16 | 0.10 | 5.9 | 0.48 | 2.5 | 3.2 | 4.9 |
| Processing | 73 | 2.6 | 120 | 8.3 | 2.5 | 13 | 4.6 | 2.9 | 8.1 | 0.016 | 2.6 | 0.025 | 0.013 | 6.5 | 0.075 | 0.43 | 2.9 | 0.76 |
| Maintenance | 56 | 2.5 | 85 | 7.6 | 2.5 | 12 | 1.6 | 2.5 | 2.4 | 0.032 | 2.7 | 0.052 | 0.013 | 3.0 | 0.024 | 1.5 | 3.1 | 2.8 |
| Other, low exposed | 2.0 | 4.6 | 6.4 | 0.28 | 4.0 | 0.73 | 0.028 | 6.7 | 0.17 | 0.0019 | 4.5 | 0.0059 | 0.0026 | 4.6 | 0.0083 | 0.021 | 6.6 | 0.12 |
| Mixed | 85 | 2.9 | 150 | 10 | 2.6 | 16 | 2.9 | 3.5 | 6.4 | 0.054 | 3.4 | 0.11 | 0.056 | 5.6 | 0.25 | 2.0 | 3.5 | 4.4 |
AM, arithmetic mean estimated from the geometric mean and the geometric SD11; GM, geometric mean; GSD, geometric SD; SiC, silicon carbide.