| Agent Name | SELENIUM |
| CAS # | 7782-49-2 |
| RTECS # | VS7700000 |
| Agent Code | 68295 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 045 | METALLURGICAL AND MATERIALS ENGINEERS | 64 | |
| 055 | ELECTRICAL AND ELECTRONIC ENGINEERS | 5 | |
| 073 | CHEMISTS, EXCEPT BIOCHEMISTS | 484 | 194 |
| 078 | BIOLOGICAL AND LIFE SCIENTISTS | 19 | |
| 095 | REGISTERED NURSES | 7,291 | 6,990 |
| 096 | PHARMACISTS | 331 | 186 |
| 206 | RADIOLOGIC TECHNICIANS | 16 | |
| 213 | ELECTRICAL AND ELECTRONIC TECHNICIANS | 311 | 12 |
| 215 | MECHANICAL ENGINEERING TECHNICIANS | 58 | |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 54 | |
| 223 | BIOLOGICAL TECHNICIANS | 298 | 149 |
| 224 | CHEMICAL TECHNICIANS | 37 | |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 359 | 276 |
| 235 | TECHNICIANS, N.E.C. | 1,678 | 616 |
| 335 | FILE CLERKS | 149 | 30 |
| 363 | PRODUCTION COORDINATORS | 8 | |
| 364 | TRAFFIC, SHIPPING, AND RECEIVING CLERKS | 1,620 | |
| 368 | WEIGHERS, MEASURERS, AND CHECKERS | 19 | |
| 374 | MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C. | 13 | |
| 386 | STATISTICAL CLERKS | 85 | 85 |
| 453 | JANITORS AND CLEANERS | 1,160 | |
| 516 | HEAVY EQUIPMENT MECHANICS | 11 | |
| 518 | INDUSTRIAL MACHINERY REPAIRERS | 21 | |
| 519 | MACHINERY MAINTENANCE OCCUPATIONS | 27 | |
| 523 | ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT | 88 | |
| 533 | MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS | 11 | |
| 539 | MECHANICAL CONTROLS AND VALVE REPAIRERS | 37 | |
| 544 | MILLWRIGHTS | 754 | |
| 547 | SPECIFIED MECHANICS AND REPAIRERS, N.E.C. | 93 | |
| 549 | NOT SPECIFIED MECHANICS AND REPAIRERS | 16 | |
| 563 | BRICKMASONS AND STONEMASONS | 5 | |
| 575 | ELECTRICIANS | 43 | |
| 585 | PLUMBERS, PIPEFITTERS, AND STEAMFITTERS | 327 | |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 32 | |
| 637 | MACHINISTS | 32 | |
| 643 | BOILERMAKERS | 40 | |
| 689 | INSPECTORS, TESTERS, AND GRADERS | 13 | |
| 696 | STATIONARY ENGINEERS | 3 | |
| 704 | LATHE AND TURNING MACHINE OPERATORS | 3 | |
| 707 | ROLLING MACHINE OPERATORS | 125 | |
| 715 | MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS | 24 | |
| 723 | METAL PLATING MACHINE OPERATORS | 1,031 | 154 |
| 724 | HEAT TREATING EQUIPMENT OPERATORS | 48 | |
| 727 | SAWING MACHINE OPERATORS | 3 | |
| 754 | PACKAGING AND FILLING MACHINE OPERATORS | 467 | 467 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 1,492 | |
| 757 | SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS | 133 | |
| 758 | COMPRESSING AND COMPACTING MACHINE OPERATORS | 13 | |
| 759 | PAINTING AND PAINT SPRAYING MACHINE OPERATORS | 300 | 11 |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 195 | |
| 768 | CRUSHING AND GRINDING MACHINE OPERATORS | 1,053 | 29 |
| 769 | SLICING AND CUTTING MACHINE OPERATORS | 13 | |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 458 | 90 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 3,070 | 342 |
| 783 | WELDERS AND CUTTERS | 19 | |
| 785 | ASSEMBLERS | 247 | |
| 789 | HAND PAINTING, COATING, AND DECORATING OCCUPATIONS | 349 | |
| 796 | PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS | 69 | |
| 797 | PRODUCTION TESTERS | 41 | |
| 798 | PRODUCTION SAMPLERS AND WEIGHERS | 8 | |
| 804 | TRUCK DRIVERS, HEAVY | 232 | |
| 849 | CRANE AND TOWER OPERATORS | 51 | |
| 856 | INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS | 21 | |
| 859 | MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS | 172 | |
| 873 | PRODUCTION HELPERS | 72 | |
| 877 | STOCK HANDLERS AND BAGGERS | 782 | |
| 883 | FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. | 446 | |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 655 | |
| TOTAL | 27,208 | 9,632 | |
*(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.