National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name SILICA, AMORPHOUS
CAS #
RTECS #
Agent Code X6493

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
019 MANAGERS AND ADMINISTRATORS, N.E.C. 680  
027 PERSONNEL, TRAINING, AND LABOR RELATIONS SPECIALISTS 58  
037 MANAGEMENT RELATED OCCUPATIONS, N.E.C. 129  
056 INDUSTRIAL ENGINEERS 80 53
059 ENGINEERS, N.E.C. 802 299
064 COMPUTER SYSTEMS ANALYSTS AND SCIENTISTS 386 125
073 CHEMISTS, EXCEPT BIOCHEMISTS 2,542 746
078 BIOLOGICAL AND LIFE SCIENTISTS 19  
084 PHYSICIANS 49 33
096 PHARMACISTS 1,031 610
098 INHALATION THERAPISTS 139 46
099 OCCUPATIONAL THERAPISTS 195 174
189 PHOTOGRAPHERS 88 44
204 DENTAL HYGIENISTS 85 49
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 412 282
215 MECHANICAL ENGINEERING TECHNICIANS 137  
216 ENGINEERING TECHNICIANS, N.E.C. 1,366 226
224 CHEMICAL TECHNICIANS 4,230 612
225 SCIENCE TECHNICIANS, N.E.C. 1,105 325
235 TECHNICIANS, N.E.C. 1,940 287
313 SECRETARIES 28,710 26,633
319 RECEPTIONISTS 134 101
335 FILE CLERKS 776 549
345 DUPLICATING MACHINE OPERATORS 115 74
356 MAIL CLERKS, EXC. POSTAL SERVICE 613 552
363 PRODUCTION COORDINATORS 19 19
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 1,873 734
365 STOCK AND INVENTORY CLERKS 211 211
368 WEIGHERS, MEASURERS, AND CHECKERS 62  
379 GENERAL OFFICE CLERKS 7,079 5,743
389 ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C. 1,513  
445 DENTAL ASSISTANTS 58 27
446 HEALTH AIDES, EXCEPT NURSING 197 59
453 JANITORS AND CLEANERS 26,772 395
458 HAIRDRESSERS AND COSMETOLOGISTS 2,271 1,817
459 ATTENDANTS, AMUSEMENT AND RECREATION FACILITIES 187  
503 SUPERVISORS, MECHANICS AND REPAIRERS 217  
505 AUTOMOBILE MECHANICS 11,268  
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 512  
508 AIRCRAFT ENGINE MECHANICS 4,845 528
514 AUTOMOBILE BODY AND RELATED REPAIRERS 8,789  
515 AIRCRAFT MECHANICS, EXC. ENGINE 1,494 29
516 HEAVY EQUIPMENT MECHANICS 413  
518 INDUSTRIAL MACHINERY REPAIRERS 2,743 46
519 MACHINERY MAINTENANCE OCCUPATIONS 154 31
527 TELEPHONE LINE INSTALLERS AND REPAIRERS 225  
529 TELEPHONE INSTALLERS AND REPAIRERS 4,724  
533 MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS 1,629  
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 39  
538 OFFICE MACHINE REPAIRERS 2,169  
544 MILLWRIGHTS 61  
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 3,357 28
549 NOT SPECIFIED MECHANICS AND REPAIRERS 7,442 313
558 SUPERVISORS, N.E.C. 900  
563 BRICKMASONS AND STONEMASONS 155  
565 TILE SETTERS, HARD AND SOFT 4,120  
567 CARPENTERS 13,462 75
573 DRYWALL INSTALLERS 1,603  
575 ELECTRICIANS 168  
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 12,239 456
584 PLASTERERS 550  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 12,228  
593 INSULATION WORKERS 721 23
595 ROOFERS 11,177  
597 STRUCTURAL METAL WORKERS 1,546  
599 CONSTRUCTION TRADES, N.E.C. 1,569  
614 DRILLERS, OIL WELL 4,107  
615 EXPLOSIVES WORKERS 143  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 3,271 370
634 TOOL AND DIE MAKERS 677 32
636 PRECISION ASSEMBLERS, METAL 262  
637 MACHINISTS 8,920 1,708
643 BOILERMAKERS 65  
645 PATTERNMAKERS AND MODEL MAKERS, METAL 48  
649 ENGRAVERS, METAL 263  
653 SHEET METAL WORKERS 2,405 28
656 PATTERNMAKERS AND MODEL MAKERS, WOOD 82 3
658 FURNITURE AND WOOD FINISHERS 162 78
667 TAILORS 40  
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 608  
676 PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS 56  
678 DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS 35 21
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 2,778 1,793
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 1,643 164
687 BAKERS 14  
696 STATIONARY ENGINEERS 11  
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 543  
704 LATHE AND TURNING MACHINE OPERATORS 2,491  
705 MILLING AND PLANING MACHINE OPERATORS 141  
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 3,261 360
707 ROLLING MACHINE OPERATORS 71  
708 DRILLING AND BORING MACHINE OPERATORS 211  
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 2,451 116
713 FORGING MACHINE OPERATORS 1,099  
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 7  
717 FABRICATING MACHINE OPERATORS, N.E.C. 307 295
719 MOLDING AND CASTING MACHINE OPERATORS 10,005 3,690
723 METAL PLATING MACHINE OPERATORS 1,578 320
724 HEAT TREATING EQUIPMENT OPERATORS 200  
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 1,064 34
727 SAWING MACHINE OPERATORS 31  
728 SHAPING AND JOINING MACHINE OPERATORS 1,954 1,042
733 MISCELLANEOUS WOODWORKING MACHINE OPERATORS 14  
734 PRINTING MACHINE OPERATORS 38,078 3,946
735 PHOTOENGRAVERS AND LITHOGRAPHERS 3,168 346
736 TYPESETTERS AND COMPOSITORS 1,935 108
737 MISCELLANEOUS PRINTING MACHINE OPERATORS 1,536 837
739 KNITTING, LOOPING, TAPING, AND WEAVING MACHINE OPERATORS 2,386 924
743 TEXTILE CUTTING MACHINE OPERATORS 1,132 162
744 TEXTILE SEWING MACHINE OPERATORS 21,899 21,234
747 PRESSING MACHINE OPERATORS 1,727 1,288
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 2,636 1,972
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 5,089 159
753 CEMENTING AND GLUING MACHINE OPERATORS 1,641 588
754 PACKAGING AND FILLING MACHINE OPERATORS 833 679
755 EXTRUDING AND FORMING MACHINE OPERATORS 2,404 442
756 MIXING AND BLENDING MACHINE OPERATORS 17,834 2,492
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 1,111 20
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 14,243 2,291
765 FOLDING MACHINE OPERATORS 443  
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 2,608 18
768 CRUSHING AND GRINDING MACHINE OPERATORS 314  
769 SLICING AND CUTTING MACHINE OPERATORS 4,527 885
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 2,970 1,691
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 24,389 5,459
779 MACHINE OPERATORS, NOT SPECIFIED 18,345 7,676
783 WELDERS AND CUTTERS 4,968 484
784 SOLDERERS AND BRAZERS 436  
785 ASSEMBLERS 39,467 16,951
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 90 56
793 HAND ENGRAVING AND PRINTING OCCUPATIONS 526 33
794 HAND GRINDING AND POLISHING OCCUPATIONS 179 179
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 1,967 749
797 PRODUCTION TESTERS 225  
798 PRODUCTION SAMPLERS AND WEIGHERS 68  
804 TRUCK DRIVERS, HEAVY 1,593  
833 MARINE ENGINEERS 3,509  
848 HOIST AND WINCH OPERATORS 8,072  
849 CRANE AND TOWER OPERATORS 386  
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 87  
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 3,025 143
865 HELPERS, CONSTRUCTION TRADES 126  
869 CONSTRUCTION LABORERS 26,209 430
873 PRODUCTION HELPERS 763  
877 STOCK HANDLERS AND BAGGERS 54 54
878 MACHINE FEEDERS AND OFFBEARERS 1,092 59
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 378  
888 HAND PACKERS AND PACKAGERS 9,014 5,164
889 LABORERS, EXCEPT CONSTRUCTION 11,103 3,231
TOTAL 532,187 133,161

*(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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