| Agent Name | FLY ASH |
| CAS # | |
| RTECS # | |
| Agent Code | 83290 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 518 | |
| 453 | JANITORS AND CLEANERS | 835 | |
| 518 | INDUSTRIAL MACHINERY REPAIRERS | 237 | |
| 567 | CARPENTERS | 5,589 | |
| 575 | ELECTRICIANS | 2,330 | |
| 588 | CONCRETE AND TERRAZZO FINISHERS | 57 | |
| 675 | HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS | 403 | |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 259 | |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 457 | |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 443 | |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 2,375 | |
| 804 | TRUCK DRIVERS, HEAVY | 3,033 | |
| 844 | OPERATING ENGINEERS | 54 | |
| 859 | MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS | 363 | |
| 869 | CONSTRUCTION LABORERS | 16,101 | 71 |
| 878 | MACHINE FEEDERS AND OFFBEARERS | 181 | |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 2,422 | |
| TOTAL | 35,658 | 71 | |
*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (2) When using the estimates, standard errors associated with estimates should be considered. (3) Potential exposures to a chemical agent are categorized as actual (i.e., the surveyor observed the use of the specific agent) or tradename (i.e., the surveyor observed the use of a tradename product known to contain the specific agent). The estimates presented in the table combine both categories.