| Agent Name | LIMESTONE |
| CAS # | 1317-65-3 |
| RTECS # | EV9580000 |
| Agent Code | M1525 |
| Code | Occupation Description (1980) | Total # Employees (Male & Female) |
Total # Female Employees |
| 019 | MANAGERS AND ADMINISTRATORS, N.E.C. | 390 | |
| 045 | METALLURGICAL AND MATERIALS ENGINEERS | 64 | |
| 048 | CHEMICAL ENGINEERS | 70 | |
| 055 | ELECTRICAL AND ELECTRONIC ENGINEERS | 75 | |
| 057 | MECHANICAL ENGINEERS | 70 | |
| 073 | CHEMISTS, EXCEPT BIOCHEMISTS | 366 | 14 |
| 078 | BIOLOGICAL AND LIFE SCIENTISTS | 36 | 12 |
| 084 | PHYSICIANS | 49 | 33 |
| 099 | OCCUPATIONAL THERAPISTS | 21 | 21 |
| 105 | THERAPISTS, N.E.C. | 366 | 366 |
| 185 | DESIGNERS | 2,201 | 1,467 |
| 188 | PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS | 215 | 29 |
| 216 | ENGINEERING TECHNICIANS, N.E.C. | 2,310 | 77 |
| 223 | BIOLOGICAL TECHNICIANS | 53 | |
| 224 | CHEMICAL TECHNICIANS | 432 | |
| 225 | SCIENCE TECHNICIANS, N.E.C. | 1,772 | 551 |
| 235 | TECHNICIANS, N.E.C. | 43 | 6 |
| 259 | SALES REPRESENTATIVES, MINING, MANUFACTURING, AND WHOLESALE | 479 | 479 |
| 275 | SALES COUNTER CLERKS | 1,059 | |
| 363 | PRODUCTION COORDINATORS | 8 | |
| 364 | TRAFFIC, SHIPPING, AND RECEIVING CLERKS | 820 | 96 |
| 365 | STOCK AND INVENTORY CLERKS | 612 | 427 |
| 366 | METER READERS | 1,495 | |
| 368 | WEIGHERS, MEASURERS, AND CHECKERS | 62 | |
| 374 | MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C. | 13 | |
| 385 | DATA-ENTRY KEYERS | 283 | 31 |
| 389 | ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C. | 70 | |
| 453 | JANITORS AND CLEANERS | 18,040 | 199 |
| 454 | ELEVATOR OPERATORS | 513 | |
| 486 | GROUNDSKEEPERS AND GARDENERS, EXCEPT FARM | 9,328 | |
| 503 | SUPERVISORS, MECHANICS AND REPAIRERS | 210 | |
| 505 | AUTOMOBILE MECHANICS | 1,803 | |
| 507 | BUS, TRUCK, AND STATIONARY ENGINE MECHANICS | 2,226 | |
| 508 | AIRCRAFT ENGINE MECHANICS | 6,707 | 57 |
| 514 | AUTOMOBILE BODY AND RELATED REPAIRERS | 1,361 | |
| 515 | AIRCRAFT MECHANICS, EXC. ENGINE | 253 | |
| 516 | HEAVY EQUIPMENT MECHANICS | 1,097 | |
| 518 | INDUSTRIAL MACHINERY REPAIRERS | 827 | 9 |
| 519 | MACHINERY MAINTENANCE OCCUPATIONS | 2,096 | |
| 523 | ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT | 88 | |
| 527 | TELEPHONE LINE INSTALLERS AND REPAIRERS | 225 | |
| 529 | TELEPHONE INSTALLERS AND REPAIRERS | 13,266 | 36 |
| 533 | MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS | 11 | |
| 534 | HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS | 59 | |
| 539 | MECHANICAL CONTROLS AND VALVE REPAIRERS | 2,552 | |
| 544 | MILLWRIGHTS | 1,159 | |
| 547 | SPECIFIED MECHANICS AND REPAIRERS, N.E.C. | 352 | |
| 549 | NOT SPECIFIED MECHANICS AND REPAIRERS | 9,393 | 313 |
| 558 | SUPERVISORS, N.E.C. | 6,341 | |
| 563 | BRICKMASONS AND STONEMASONS | 9,123 | |
| 565 | TILE SETTERS, HARD AND SOFT | 6,034 | |
| 567 | CARPENTERS | 55,892 | 6 |
| 573 | DRYWALL INSTALLERS | 850 | |
| 575 | ELECTRICIANS | 14,408 | 108 |
| 577 | ELECTRICAL POWER INSTALLERS AND REPAIRERS | 1,255 | |
| 579 | PAINTERS, CONSTRUCTION AND MAINTENANCE | 3,921 | 51 |
| 583 | PAPERHANGERS | 387 | |
| 584 | PLASTERERS | 188 | |
| 585 | PLUMBERS, PIPEFITTERS, AND STEAMFITTERS | 9,981 | 206 |
| 588 | CONCRETE AND TERRAZZO FINISHERS | 331 | |
| 593 | INSULATION WORKERS | 1,232 | 91 |
| 595 | ROOFERS | 30,836 | |
| 597 | STRUCTURAL METAL WORKERS | 2,418 | |
| 599 | CONSTRUCTION TRADES, N.E.C. | 3,548 | |
| 633 | SUPERVISORS, PRODUCTION OCCUPATIONS | 6,812 | |
| 634 | TOOL AND DIE MAKERS | 769 | 32 |
| 637 | MACHINISTS | 4,120 | 8 |
| 643 | BOILERMAKERS | 88 | |
| 653 | SHEET METAL WORKERS | 8,912 | 128 |
| 655 | MISCELLANEOUS PRECISION METAL WORKERS | 122 | |
| 657 | CABINET MAKERS AND BENCH CARPENTERS | 201 | |
| 658 | FURNITURE AND WOOD FINISHERS | 675 | 225 |
| 667 | TAILORS | 197 | |
| 675 | HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS | 3,255 | |
| 676 | PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS | 187 | |
| 678 | DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS | 35 | 21 |
| 679 | BOOKBINDERS | 462 | 231 |
| 683 | ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS | 1,246 | 1,246 |
| 684 | MISCELLANEOUS PRECISION WORKERS, N.E.C. | 1,808 | 164 |
| 689 | INSPECTORS, TESTERS, AND GRADERS | 13 | |
| 696 | STATIONARY ENGINEERS | 117 | |
| 699 | MISCELLANEOUS PLANT AND SYSTEM OPERATORS | 661 | |
| 704 | LATHE AND TURNING MACHINE OPERATORS | 5,101 | |
| 707 | ROLLING MACHINE OPERATORS | 1,644 | |
| 709 | GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS | 680 | 83 |
| 713 | FORGING MACHINE OPERATORS | 271 | |
| 715 | MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS | 24 | |
| 719 | MOLDING AND CASTING MACHINE OPERATORS | 5,812 | 805 |
| 723 | METAL PLATING MACHINE OPERATORS | 269 | 108 |
| 724 | HEAT TREATING EQUIPMENT OPERATORS | 300 | |
| 725 | MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS | 503 | 175 |
| 727 | SAWING MACHINE OPERATORS | 3 | |
| 733 | MISCELLANEOUS WOODWORKING MACHINE OPERATORS | 518 | |
| 734 | PRINTING MACHINE OPERATORS | 9,581 | 115 |
| 744 | TEXTILE SEWING MACHINE OPERATORS | 7,226 | 7,151 |
| 745 | SHOE MACHINE OPERATORS | 1,044 | 845 |
| 749 | MISCELLANEOUS TEXTILE MACHINE OPERATORS | 2,806 | 99 |
| 753 | CEMENTING AND GLUING MACHINE OPERATORS | 753 | 100 |
| 754 | PACKAGING AND FILLING MACHINE OPERATORS | 442 | |
| 755 | EXTRUDING AND FORMING MACHINE OPERATORS | 3,922 | 91 |
| 756 | MIXING AND BLENDING MACHINE OPERATORS | 7,872 | 5 |
| 757 | SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS | 1,306 | |
| 758 | COMPRESSING AND COMPACTING MACHINE OPERATORS | 13 | |
| 759 | PAINTING AND PAINT SPRAYING MACHINE OPERATORS | 11,821 | 1,358 |
| 763 | ROASTING AND BAKING MACHINE OPERATORS, FOOD | 117 | |
| 766 | FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD | 7,472 | 59 |
| 768 | CRUSHING AND GRINDING MACHINE OPERATORS | 1,175 | |
| 769 | SLICING AND CUTTING MACHINE OPERATORS | 1,796 | 271 |
| 777 | MISCELLANEOUS MACHINE OPERATORS, N.E.C. | 16,590 | 903 |
| 779 | MACHINE OPERATORS, NOT SPECIFIED | 25,994 | 6,577 |
| 783 | WELDERS AND CUTTERS | 6,177 | 16 |
| 785 | ASSEMBLERS | 24,921 | 6,732 |
| 787 | HAND MOLDING, CASTING, AND FORMING OCCUPATIONS | 1,046 | 405 |
| 789 | HAND PAINTING, COATING, AND DECORATING OCCUPATIONS | 1,192 | 245 |
| 794 | HAND GRINDING AND POLISHING OCCUPATIONS | 159 | 159 |
| 796 | PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS | 715 | 536 |
| 797 | PRODUCTION TESTERS | 195 | |
| 798 | PRODUCTION SAMPLERS AND WEIGHERS | 81 | |
| 799 | GRADERS AND SORTERS, EXCEPT AGRICULTURAL | 1,578 | |
| 804 | TRUCK DRIVERS, HEAVY | 10,838 | |
| 805 | TRUCK DRIVERS, LIGHT | 3,176 | |
| 824 | LOCOMOTIVE OPERATING OCCUPATIONS | 1,169 | |
| 843 | SUPERVISORS, MATERIAL MOVING EQUIPMENT OPERATORS | 210 | |
| 844 | OPERATING ENGINEERS | 13,243 | |
| 849 | CRANE AND TOWER OPERATORS | 733 | |
| 853 | EXCAVATING AND LOADING MACHINE OPERATORS | 876 | |
| 855 | GRADER, DOZER, AND SCRAPER OPERATORS | 468 | |
| 856 | INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS | 1,324 | |
| 859 | MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS | 1,386 | 10 |
| 864 | HELPERS, MECHANICS AND REPAIRERS | 454 | |
| 865 | HELPERS, CONSTRUCTION TRADES | 1,210 | |
| 869 | CONSTRUCTION LABORERS | 67,357 | 254 |
| 873 | PRODUCTION HELPERS | 4,546 | 1,970 |
| 877 | STOCK HANDLERS AND BAGGERS | 1,392 | |
| 878 | MACHINE FEEDERS AND OFFBEARERS | 112 | |
| 883 | FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. | 220 | |
| 888 | HAND PACKERS AND PACKAGERS | 1,516 | 99 |
| 889 | LABORERS, EXCEPT CONSTRUCTION | 10,565 | 335 |
| TOTAL | 533,341 | 36,245 | |
*(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.