National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name SILICA, POWDER
CAS # 7631-86-9
RTECS #
Agent Code M1806

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
018 FUNERAL DIRECTORS 3,806  
048 CHEMICAL ENGINEERS 6  
073 CHEMISTS, EXCEPT BIOCHEMISTS 45 20
083 MEDICAL SCIENTISTS 9  
095 REGISTERED NURSES 17,340 16,070
096 PHARMACISTS 363 237
098 INHALATION THERAPISTS 83  
103 PHYSICAL THERAPISTS 441 302
105 THERAPISTS, N.E.C. 219 219
198 ANNOUNCERS 1,806 258
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 4,518 3,485
206 RADIOLOGIC TECHNICIANS 540 22
207 LICENSED PRACTICAL NURSES 442 430
208 HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. 163 163
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 153  
216 ENGINEERING TECHNICIANS, N.E.C. 2,333 1,412
224 CHEMICAL TECHNICIANS 657 383
225 SCIENCE TECHNICIANS, N.E.C. 53  
235 TECHNICIANS, N.E.C. 18  
243 SUPERVISORS AND PROPRIETORS, SALES OCCUPATIONS 342  
313 SECRETARIES 360 360
365 STOCK AND INVENTORY CLERKS 926 616
368 WEIGHERS, MEASURERS, AND CHECKERS 328  
379 GENERAL OFFICE CLERKS 3,416 1,689
435 WAITERS AND WAITRESSES 297 297
436 COOKS, EXCEPT SHORT ORDER 589 354
443 WAITERS'/WAITRESSES' ASSISTANTS 1,239 899
444 MISCELLANEOUS FOOD PREPARATION OCCUPATIONS 1,654 1,248
446 HEALTH AIDES, EXCEPT NURSING 1,521 1,035
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 904 795
448 SUPERVISORS, CLEANING AND BUILDING SERVICE WORKERS 28  
449 MAIDS AND HOUSEMEN 16,008 11,816
453 JANITORS AND CLEANERS 57,546 29,517
458 HAIRDRESSERS AND COSMETOLOGISTS 2,646 1,664
486 GROUNDSKEEPERS AND GARDENERS, EXCEPT FARM 29  
503 SUPERVISORS, MECHANICS AND REPAIRERS 719  
505 AUTOMOBILE MECHANICS 959  
518 INDUSTRIAL MACHINERY REPAIRERS 211  
549 NOT SPECIFIED MECHANICS AND REPAIRERS 2,114  
567 CARPENTERS 35  
593 INSULATION WORKERS 418  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 336  
679 BOOKBINDERS 462 231
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 359 335
687 BAKERS 1,744 162
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 1,090  
707 ROLLING MACHINE OPERATORS 653  
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 501 242
719 MOLDING AND CASTING MACHINE OPERATORS 1,038 350
723 METAL PLATING MACHINE OPERATORS 48 48
734 PRINTING MACHINE OPERATORS 3,848 41
735 PHOTOENGRAVERS AND LITHOGRAPHERS 17 3
736 TYPESETTERS AND COMPOSITORS 2,122 1,635
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 18  
753 CEMENTING AND GLUING MACHINE OPERATORS 156  
756 MIXING AND BLENDING MACHINE OPERATORS 144  
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 1,076 11
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 4,777 29
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 2,433 1,297
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 3,474 99
779 MACHINE OPERATORS, NOT SPECIFIED 441  
783 WELDERS AND CUTTERS 1,690  
785 ASSEMBLERS 2,453 377
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 761 119
809 TAXI CAB DRIVERS AND CHAUFFEURS 541  
849 CRANE AND TOWER OPERATORS 162  
869 CONSTRUCTION LABORERS 4,997 5
873 PRODUCTION HELPERS 723  
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 554  
889 LABORERS, EXCEPT CONSTRUCTION 4,045 21
TOTAL 165,948 78,298

*(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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