National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name SILICIC ACID
CAS # 1343-98-2
RTECS #
Agent Code 80288

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
007 FINANCIAL MANAGERS 91  
073 CHEMISTS, EXCEPT BIOCHEMISTS 513 68
095 REGISTERED NURSES 14,312 13,246
098 INHALATION THERAPISTS 69 46
099 OCCUPATIONAL THERAPISTS 84 70
185 DESIGNERS 86 86
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 108 72
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 162 115
207 LICENSED PRACTICAL NURSES 664 664
208 HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. 32 32
216 ENGINEERING TECHNICIANS, N.E.C. 409 153
224 CHEMICAL TECHNICIANS 449 196
235 TECHNICIANS, N.E.C. 8,057 243
335 FILE CLERKS 104  
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 153 153
365 STOCK AND INVENTORY CLERKS 115  
366 METER READERS 1,495  
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 1,792 1,526
448 SUPERVISORS, CLEANING AND BUILDING SERVICE WORKERS 945  
449 MAIDS AND HOUSEMEN 1,980 1,067
453 JANITORS AND CLEANERS 2,542 319
455 PEST CONTROL OCCUPATIONS 4,742 574
458 HAIRDRESSERS AND COSMETOLOGISTS 4,559 3,989
505 AUTOMOBILE MECHANICS 2,197  
518 INDUSTRIAL MACHINERY REPAIRERS 235  
527 TELEPHONE LINE INSTALLERS AND REPAIRERS 225  
529 TELEPHONE INSTALLERS AND REPAIRERS 13,266 36
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 326  
549 NOT SPECIFIED MECHANICS AND REPAIRERS 2,555 302
558 SUPERVISORS, N.E.C. 159  
565 TILE SETTERS, HARD AND SOFT 1,188  
567 CARPENTERS 5,809  
575 ELECTRICIANS 605  
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 504  
583 PAPERHANGERS 387  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 4,758  
593 INSULATION WORKERS 633  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 142  
637 MACHINISTS 14  
646 LAY-OUT WORKERS 58  
653 SHEET METAL WORKERS 2,286  
668 UPHOLSTERERS 58  
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 1,670 178
696 STATIONARY ENGINEERS 32  
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 52  
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 2,498 128
719 MOLDING AND CASTING MACHINE OPERATORS 417 296
723 METAL PLATING MACHINE OPERATORS 1,289  
724 HEAT TREATING EQUIPMENT OPERATORS 94  
734 PRINTING MACHINE OPERATORS 1,407 853
743 TEXTILE CUTTING MACHINE OPERATORS 1,132 162
744 TEXTILE SEWING MACHINE OPERATORS 917 755
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 235  
754 PACKAGING AND FILLING MACHINE OPERATORS 824  
755 EXTRUDING AND FORMING MACHINE OPERATORS 304  
756 MIXING AND BLENDING MACHINE OPERATORS 1,816 38
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 2,567  
764 WASHING, CLEANING, AND PICKLING MACHINE OPERATORS 95  
769 SLICING AND CUTTING MACHINE OPERATORS 755 54
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 1,335 50
779 MACHINE OPERATORS, NOT SPECIFIED 889 516
783 WELDERS AND CUTTERS 31  
785 ASSEMBLERS 6,244 2,117
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 450  
869 CONSTRUCTION LABORERS 5,320  
873 PRODUCTION HELPERS 344  
877 STOCK HANDLERS AND BAGGERS 54 54
878 MACHINE FEEDERS AND OFFBEARERS 1,025 54
888 HAND PACKERS AND PACKAGERS 940 78
889 LABORERS, EXCEPT CONSTRUCTION 34 6
TOTAL 111,636 28,296

*(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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