Exposure group | n (%) | Ageg | Exposedh | Fibre- | Drillingk | Sawingk | Grindingk | Otherk | Cordsl | Boardsl | Heaterl |
---|
 |  |
(years)
|
(years)
|
years
i
|
(%)
m
|
(%)
m
|
(%)
m
|
(%)
m
|
(%)
m
|
(%)
m
|
(%)
m
|
Metalworkera | 50 (2) | 53 (12) | 15 (9) | 2.8 (6) | 52 | 52 | 48 | 66 | 52 | 30 | 10 |
Electricianb | 1875 (75) | 44 (13) | 12 (8) | 2.8 (23) | 77 | 72 | 58 | 72 | 25 | 27 | 38 |
Plant operatorc | 13 (< 1) | 56 (11) | 12 (8) | 5.1 (9) | 23 | 31 | 15 | 38 | 31 | 23 | - |
Other craftsmand | 250 (10) | 46 (11) | 12 (8) | 1.3 (3) | 48 | 46 | 34 | 57 | 19 | 20 | 21 |
Supervisore | 160 (6) | 46 (10) | 11 (8) | 1.9 (13) | 48 | 46 | 31 | 58 | 24 | 22 | 34 |
Other occupationf | 143 (6) | 48 (12) | 12 (9) | 1.0 (2) | 48 | 43 | 33 | 49 | 12 | 19 | 28 |
Total | 2491 (100) | 45 (12) | 12 (8) | 2.5 (20) | 70 | 66 | 51 | 68 | 24 | 25 | 35 |
- a including welder, insulator, mechanic
- b including communications technician
- c including system controller, boiler operator
- d for example roofer, pipefitter, car mechanic, mason, gauge mechanic, turner, smelter, fire fighter, driver, painter, warehouseman, forklift operator
- e present in the contaminated area, but not executing manual work, for example civil engineer, work planner
- f for example gardener, office staff, laboratory assistant, doorman, occupation unknown (n = 7)
- g age at fixed reference date 1 September 2002, standard deviation in parentheses
- h periods of asbestos exposure from self administered data sheets, standard deviation in parentheses
- i cumulative asbestos exposure calculated for a standard airborne concentration of 1 × 106 fibres per cubic metre, standard deviation in parentheses
- k tooling of asbestos cement sheets with a drill, saw, angle grinder or some other instrument
- l handling of asbestos cords or boards, maintenance of night storage heaters
- m percent of exposure group with evaluable data executing specific job task