National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name MAGNESIUM SILICATE
CAS #
RTECS #
Agent Code 80299

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
019 MANAGERS AND ADMINISTRATORS, N.E.C. 300  
048 CHEMICAL ENGINEERS 64 3
059 ENGINEERS, N.E.C. 8,805 1,601
073 CHEMISTS, EXCEPT BIOCHEMISTS 85 6
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 215 29
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 255 127
216 ENGINEERING TECHNICIANS, N.E.C. 254 57
224 CHEMICAL TECHNICIANS 651 307
235 TECHNICIANS, N.E.C. 6 6
335 FILE CLERKS 104  
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 637 124
365 STOCK AND INVENTORY CLERKS 40  
453 JANITORS AND CLEANERS 14,681 48
503 SUPERVISORS, MECHANICS AND REPAIRERS 2,429  
505 AUTOMOBILE MECHANICS 52  
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 1,322  
508 AIRCRAFT ENGINE MECHANICS 2,315  
514 AUTOMOBILE BODY AND RELATED REPAIRERS 10,007  
515 AIRCRAFT MECHANICS, EXC. ENGINE 1,657  
516 HEAVY EQUIPMENT MECHANICS 244  
519 MACHINERY MAINTENANCE OCCUPATIONS 149  
533 MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS 5,365  
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 23  
544 MILLWRIGHTS 837  
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 1,075  
549 NOT SPECIFIED MECHANICS AND REPAIRERS 1,642 17
567 CARPENTERS 9,041 65
575 ELECTRICIANS 11,673  
576 ELECTRICIAN APPRENTICES 368  
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 4,896 476
583 PAPERHANGERS 387  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 2,099 36
588 CONCRETE AND TERRAZZO FINISHERS 90  
596 SHEETMETAL DUCT INSTALLERS 586  
597 STRUCTURAL METAL WORKERS 2,548  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 1,586  
637 MACHINISTS 6  
645 PATTERNMAKERS AND MODEL MAKERS, METAL 158  
653 SHEET METAL WORKERS 675 24
658 FURNITURE AND WOOD FINISHERS 2,113 1,330
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 22 22
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 62  
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 259  
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 618 41
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 445 32
713 FORGING MACHINE OPERATORS 271  
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 14  
719 MOLDING AND CASTING MACHINE OPERATORS 176  
723 METAL PLATING MACHINE OPERATORS 136  
734 PRINTING MACHINE OPERATORS 387  
736 TYPESETTERS AND COMPOSITORS 73 24
744 TEXTILE SEWING MACHINE OPERATORS 1,234 1,234
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 3,376 237
753 CEMENTING AND GLUING MACHINE OPERATORS 56 28
754 PACKAGING AND FILLING MACHINE OPERATORS 213  
755 EXTRUDING AND FORMING MACHINE OPERATORS 941 65
756 MIXING AND BLENDING MACHINE OPERATORS 1,964 103
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 18,492 452
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 48  
769 SLICING AND CUTTING MACHINE OPERATORS 554 58
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 4,048 340
779 MACHINE OPERATORS, NOT SPECIFIED 2,320 782
783 WELDERS AND CUTTERS 11,408 5
785 ASSEMBLERS 9,048 3,955
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 2,508  
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 891 29
797 PRODUCTION TESTERS 14  
833 MARINE ENGINEERS 2,632  
849 CRANE AND TOWER OPERATORS 144  
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 73 24
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 947 148
869 CONSTRUCTION LABORERS 3,408 5
873 PRODUCTION HELPERS 2,013 729
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 31  
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 56  
888 HAND PACKERS AND PACKAGERS 1,115 78
889 LABORERS, EXCEPT CONSTRUCTION 772 116
TOTAL 160,207 12,764

*(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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