National Occupational Exposure Survey
(1981 - 1983)

Estimated Numbers of Employees Potentially Exposed to Specific Agents by Occupation*

Agent Name SILICA
CAS # 7631-86-9
RTECS # VV7310000
Agent Code M0930

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
013 MANAGERS, MARKETING, ADVERTISING, AND PUBLIC RELATIONS 60  
015 MANAGERS, MEDICINE AND HEALTH 110 25
018 FUNERAL DIRECTORS 6,998 555
019 MANAGERS AND ADMINISTRATORS, N.E.C. 1,384 553
027 PERSONNEL, TRAINING, AND LABOR RELATIONS SPECIALISTS 2,932  
036 INSPECTORS AND COMPLIANCE OFFICERS, EXC. CONSTRUCTION 32 32
044 AEROSPACE ENGINEERS 279  
045 METALLURGICAL AND MATERIALS ENGINEERS 78  
048 CHEMICAL ENGINEERS 111 5
053 CIVIL ENGINEERS 482  
055 ELECTRICAL AND ELECTRONIC ENGINEERS 1,915 206
056 INDUSTRIAL ENGINEERS 693 360
057 MECHANICAL ENGINEERS 1,057 14
059 ENGINEERS, N.E.C. 10,691 1,982
064 COMPUTER SYSTEMS ANALYSTS AND SCIENTISTS 386 125
073 CHEMISTS, EXCEPT BIOCHEMISTS 4,452 808
074 ATMOSPHERIC AND SPACE SCIENTISTS 22  
083 MEDICAL SCIENTISTS 35 35
084 PHYSICIANS 289 235
086 VETERINARIANS 2,015  
095 REGISTERED NURSES 49,765 33,086
096 PHARMACISTS 1,212 697
097 DIETITIANS 1,799 1,223
098 INHALATION THERAPISTS 864 466
099 OCCUPATIONAL THERAPISTS 721 670
103 PHYSICAL THERAPISTS 1,821 1,482
105 THERAPISTS, N.E.C. 464 443
185 DESIGNERS 2,266 1,467
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 656 101
189 PHOTOGRAPHERS 893  
194 ARTISTS, PERFORMERS, AND RELATED WORKERS, N.E.C. 97  
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 2,473 1,861
206 RADIOLOGIC TECHNICIANS 1,495 766
207 LICENSED PRACTICAL NURSES 4,601 3,808
208 HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. 4,144 3,119
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 23,224 9,689
215 MECHANICAL ENGINEERING TECHNICIANS 1,373 24
216 ENGINEERING TECHNICIANS, N.E.C. 11,298 3,013
217 DRAFTING OCCUPATIONS 2,966 13
223 BIOLOGICAL TECHNICIANS 4,763 1,630
224 CHEMICAL TECHNICIANS 6,820 1,182
225 SCIENCE TECHNICIANS, N.E.C. 4,501 1,080
235 TECHNICIANS, N.E.C. 5,492 2,054
243 SUPERVISORS AND PROPRIETORS, SALES OCCUPATIONS 966 203
259 SALES REPRESENTATIVES, MINING, MANUFACTURING, AND WHOLESALE 354  
269 SALES WORKERS, PARTS 132  
303 SUPERVISORS, GENERAL OFFICE 930 786
307 SUPERVISORS; DISTRIBUTION, SCHEDULING, AND ADJUSTING CLERKS 35  
309 PERIPHERAL EQUIPMENT OPERATORS 223 112
313 SECRETARIES 8,524 8,497
335 FILE CLERKS 2,166 1,078
336 RECORDS CLERKS 326 326
345 DUPLICATING MACHINE OPERATORS 443 408
346 MAIL PREPARING AND PAPER HANDLING MACHINE OPERATORS 377 63
356 MAIL CLERKS, EXC. POSTAL SERVICE 1,226 350
357 MESSENGERS 278  
363 PRODUCTION COORDINATORS 6,411 210
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 9,518 1,081
365 STOCK AND INVENTORY CLERKS 10,547 2,822
368 WEIGHERS, MEASURERS, AND CHECKERS 613 222
374 MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C. 13  
379 GENERAL OFFICE CLERKS 4,712 2,985
385 DATA-ENTRY KEYERS 2,036 1,091
389 ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C. 2,295 634
435 WAITERS AND WAITRESSES 1,438 1,233
436 COOKS, EXCEPT SHORT ORDER 1,961 1,382
443 WAITERS'/WAITRESSES' ASSISTANTS 196 196
444 MISCELLANEOUS FOOD PREPARATION OCCUPATIONS 9,726 7,421
446 HEALTH AIDES, EXCEPT NURSING 15,207 9,296
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 5,202 4,505
448 SUPERVISORS, CLEANING AND BUILDING SERVICE WORKERS 614 368
449 MAIDS AND HOUSEMEN 52,325 34,854
453 JANITORS AND CLEANERS 257,493 75,359
458 HAIRDRESSERS AND COSMETOLOGISTS 21,117 18,006
459 ATTENDANTS, AMUSEMENT AND RECREATION FACILITIES 187  
469 PERSONAL SERVICE OCCUPATIONS, N.E.C. 216 154
486 GROUNDSKEEPERS AND GARDENERS, EXCEPT FARM 7,978 378
487 ANIMAL CARETAKERS, EXCEPT FARM 806 806
503 SUPERVISORS, MECHANICS AND REPAIRERS 4,575  
505 AUTOMOBILE MECHANICS 29,931  
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 16,261  
508 AIRCRAFT ENGINE MECHANICS 14,722 594
509 SMALL ENGINE REPAIRERS 427 50
514 AUTOMOBILE BODY AND RELATED REPAIRERS 11,026  
515 AIRCRAFT MECHANICS, EXC. ENGINE 8,852 21
516 HEAVY EQUIPMENT MECHANICS 20,063 156
518 INDUSTRIAL MACHINERY REPAIRERS 11,293 96
519 MACHINERY MAINTENANCE OCCUPATIONS 1,099 31
523 ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT 6,362  
529 TELEPHONE INSTALLERS AND REPAIRERS 2,847 36
533 MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS 261 29
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 271  
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 642 419
539 MECHANICAL CONTROLS AND VALVE REPAIRERS 387  
544 MILLWRIGHTS 5,267 3
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 13,111 765
549 NOT SPECIFIED MECHANICS AND REPAIRERS 35,311 335
555 SUPERVISORS, ELECTRICIANS AND POWER TRANSMISSION INSTALLERS 429  
558 SUPERVISORS, N.E.C. 10,846  
563 BRICKMASONS AND STONEMASONS 21,223  
565 TILE SETTERS, HARD AND SOFT 18,489  
566 CARPET INSTALLERS 1,658  
567 CARPENTERS 41,909 268
573 DRYWALL INSTALLERS 1,433  
575 ELECTRICIANS 36,582 216
576 ELECTRICIAN APPRENTICES 368  
577 ELECTRICAL POWER INSTALLERS AND REPAIRERS 12,052 147
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 33,742 832
583 PAPERHANGERS 387  
584 PLASTERERS 2,701  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 33,610 39
588 CONCRETE AND TERRAZZO FINISHERS 3,471  
589 GLAZIERS 3,177  
593 INSULATION WORKERS 11,305 653
595 ROOFERS 22,161  
596 SHEETMETAL DUCT INSTALLERS 62  
597 STRUCTURAL METAL WORKERS 1,878  
599 CONSTRUCTION TRADES, N.E.C. 8,285 254
615 EXPLOSIVES WORKERS 72  
617 MINING OCCUPATIONS, N.E.C. 12,291  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 11,008 474
634 TOOL AND DIE MAKERS 14,124 115
635 TOOL AND DIE MAKER APPRENTICES 264 18
636 PRECISION ASSEMBLERS, METAL 1,075 140
637 MACHINISTS 54,767 1,580
639 MACHINIST APPRENTICES 139  
643 BOILERMAKERS 6,696 6
644 PRECISION GRINDERS, FITTERS, AND TOOL SHARPENERS 253 34
645 PATTERNMAKERS AND MODEL MAKERS, METAL 2,518 50
646 LAY-OUT WORKERS 5  
647 PRECIOUS STONES AND METALS WORKERS (JEWELERS) 985 483
649 ENGRAVERS, METAL 280 88
653 SHEET METAL WORKERS 12,703 365
655 MISCELLANEOUS PRECISION METAL WORKERS 281 148
656 PATTERNMAKERS AND MODEL MAKERS, WOOD 82 3
657 CABINET MAKERS AND BENCH CARPENTERS 709  
658 FURNITURE AND WOOD FINISHERS 9,989 4,027
668 UPHOLSTERERS 332  
674 MISCELLANEOUS PRECISION APPAREL AND FABRIC WORKERS 37 3
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 6,783 195
676 PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS 977  
677 OPTICAL GOODS WORKERS 5,173 2,341
678 DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS 5,946 2,370
679 BOOKBINDERS 833 341
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 11,402 7,705
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 9,533 254
686 BUTCHERS AND MEAT CUTTERS 2,067  
687 BAKERS 4,543 903
688 FOOD BATCHMAKERS 747  
689 INSPECTORS, TESTERS, AND GRADERS 813 147
693 ADJUSTERS AND CALIBRATORS 48 10
694 WATER AND SEWAGE TREATMENT PLANT OPERATORS 72  
695 POWER PLANT OPERATORS 876 81
696 STATIONARY ENGINEERS 6,565 678
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 1,453  
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 1,087 62
704 LATHE AND TURNING MACHINE OPERATORS 13,297 105
705 MILLING AND PLANING MACHINE OPERATORS 1,058  
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 4,209 1,869
707 ROLLING MACHINE OPERATORS 2,873  
708 DRILLING AND BORING MACHINE OPERATORS 932 204
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 24,031 4,956
713 FORGING MACHINE OPERATORS 1,468 86
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 455 79
717 FABRICATING MACHINE OPERATORS, N.E.C. 5,717 3,601
719 MOLDING AND CASTING MACHINE OPERATORS 34,156 11,464
723 METAL PLATING MACHINE OPERATORS 4,638 397
724 HEAT TREATING EQUIPMENT OPERATORS 3,650  
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 4,117 73
726 WOOD LATHE, ROUTING, AND PLANING MACHINE OPERATORS 410  
727 SAWING MACHINE OPERATORS 2,547 569
728 SHAPING AND JOINING MACHINE OPERATORS 2,862 1,042
733 MISCELLANEOUS WOODWORKING MACHINE OPERATORS 912 7
734 PRINTING MACHINE OPERATORS 57,278 5,475
735 PHOTOENGRAVERS AND LITHOGRAPHERS 208 40
736 TYPESETTERS AND COMPOSITORS 1,592  
737 MISCELLANEOUS PRINTING MACHINE OPERATORS 3,320 1,675
744 TEXTILE SEWING MACHINE OPERATORS 24,409 21,870
745 SHOE MACHINE OPERATORS 120 120
747 PRESSING MACHINE OPERATORS 2,035 1,288
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 3,714 1,500
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 5,953 288
753 CEMENTING AND GLUING MACHINE OPERATORS 3,240 1,512
754 PACKAGING AND FILLING MACHINE OPERATORS 7,248 2,406
755 EXTRUDING AND FORMING MACHINE OPERATORS 10,691 4,379
756 MIXING AND BLENDING MACHINE OPERATORS 41,664 2,115
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 5,995 236
758 COMPRESSING AND COMPACTING MACHINE OPERATORS 488 321
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 40,237 5,444
763 ROASTING AND BAKING MACHINE OPERATORS, FOOD 117  
764 WASHING, CLEANING, AND PICKLING MACHINE OPERATORS 1,430 417
765 FOLDING MACHINE OPERATORS 166 22
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 13,736 1,432
768 CRUSHING AND GRINDING MACHINE OPERATORS 6,318 472
769 SLICING AND CUTTING MACHINE OPERATORS 18,336 6,822
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 1,513 598
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 77,280 12,264
779 MACHINE OPERATORS, NOT SPECIFIED 85,796 16,976
783 WELDERS AND CUTTERS 74,787 958
784 SOLDERERS AND BRAZERS 1,561 784
785 ASSEMBLERS 195,059 76,976
786 HAND CUTTING AND TRIMMING OCCUPATIONS 2,494 2,339
787 HAND MOLDING, CASTING, AND FORMING OCCUPATIONS 1,046 205
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 2,026 618
793 HAND ENGRAVING AND PRINTING OCCUPATIONS 167 147
794 HAND GRINDING AND POLISHING OCCUPATIONS 667 567
795 MISCELLANEOUS HAND WORKING OCCUPATIONS 1,368 166
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 16,704 4,460
797 PRODUCTION TESTERS 2,677 712
798 PRODUCTION SAMPLERS AND WEIGHERS 76  
799 GRADERS AND SORTERS, EXCEPT AGRICULTURAL 1,711 133
804 TRUCK DRIVERS, HEAVY 9,992 44
806 DRIVER-SALES WORKERS 1,445  
843 SUPERVISORS, MATERIAL MOVING EQUIPMENT OPERATORS 334  
844 OPERATING ENGINEERS 1,730 181
849 CRANE AND TOWER OPERATORS 2,908  
853 EXCAVATING AND LOADING MACHINE OPERATORS 781  
855 GRADER, DOZER, AND SCRAPER OPERATORS 468  
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 3,531 175
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 5,413 990
865 HELPERS, CONSTRUCTION TRADES 326  
869 CONSTRUCTION LABORERS 78,296 1,299
873 PRODUCTION HELPERS 5,880 1,322
877 STOCK HANDLERS AND BAGGERS 1,602 5
878 MACHINE FEEDERS AND OFFBEARERS 2,483 1,116
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 558 78
885 GARAGE AND SERVICE STATION RELATED OCCUPATIONS 6,702  
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 1,862 934
888 HAND PACKERS AND PACKAGERS 30,841 21,449
889 LABORERS, EXCEPT CONSTRUCTION 44,067 4,845
TOTAL 2,250,097 507,833

*(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.

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