Job class | Location | <1940 | 1940–1949* | ≥1950 | ||
N | mg/m3 | mg/m3 | N | mg/m3 | ||
Bit grinder† | Quarry | 1 | 0.17 | |||
Blacksmith† | Quarry | 4 | 0.03 | |||
Boxer | Shed | 14 | 0.08 | 0.06 | 103 | 0.04 |
Carver | Shed | 19 | 0.37 | 0.22 | 149 | 0.07 |
Channel bar | Quarry | 3 | 0.15 | 0.08 | 0.01‡ | |
Crane | Shed | 9 | 0.16 | 0.11 | 32 | 0.05 |
Cutter | Shed | 331 | 0.39 | 0.23 | 1569 | 0.07 |
Draftsman | Shed | 12 | 0.01 | 0.01 | 0.01 | |
Driller | Quarry | 120 | 1.07 | 0.54 | 7 | 0.01 |
Foreman | Shed | 0.12 | 0.09 | 9 | 0.05 | |
Grinder | Shed | 31 | 0.19 | 0.13 | 5 | 0.07 |
Jackhammer | Quarry | 10 | 1.05 | 0.56 | 7 | 0.06 |
Labourer | Shed | 0.24 | 0.17 | 8 | 0.10 | |
Lumper | Shed | 5 | 0.30 | 0.18 | 138 | 0.06 |
Maintenance | Shed | 12 | 0.24 | 0.16 | 28 | 0.07 |
Quarry (general) | Quarry | 22 | 0.13 | 0.07 | 0.01‡ | |
Office worker | Shed | 29 | 0.04 | 0.04 | 0.04 | |
Polisher | Shed | 35 | 0.12 | 0.10 | 570 | 0.07 |
Sandblaster | Shed | 43 | 0.24 | 0.16 | 337 | 0.07 |
Sawyer | Shed | 13 | 0.13 | 0.10 | 634 | 0.06 |
Shed (general) | Shed | 153 | 0.12 | 0.09 | 491 | 0.05 |
Surfacer | Shed | 150 | 0.28 | 0.18 | 101 | 0.08 |