National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name NAPHTHA (PETROLEUM), HYDROTREATED HEAVY
CAS # 64742-48-9
RTECS #
Agent Code Y1016

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
013 MANAGERS, MARKETING, ADVERTISING, AND PUBLIC RELATIONS 60  
016 MANAGERS, PROPERTIES AND REAL ESTATE 81  
018 FUNERAL DIRECTORS 630 70
019 MANAGERS AND ADMINISTRATORS, N.E.C. 1,638 645
027 PERSONNEL, TRAINING, AND LABOR RELATIONS SPECIALISTS 822  
045 METALLURGICAL AND MATERIALS ENGINEERS 64  
055 ELECTRICAL AND ELECTRONIC ENGINEERS 5  
056 INDUSTRIAL ENGINEERS 16  
059 ENGINEERS, N.E.C. 697 299
064 COMPUTER SYSTEMS ANALYSTS AND SCIENTISTS 386 125
073 CHEMISTS, EXCEPT BIOCHEMISTS 3,986 614
074 ATMOSPHERIC AND SPACE SCIENTISTS 22  
095 REGISTERED NURSES 137 113
099 OCCUPATIONAL THERAPISTS 825 811
188 PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS 885 437
189 PHOTOGRAPHERS 41  
206 RADIOLOGIC TECHNICIANS 34 34
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 597 267
215 MECHANICAL ENGINEERING TECHNICIANS 165  
216 ENGINEERING TECHNICIANS, N.E.C. 925 111
217 DRAFTING OCCUPATIONS 72 14
224 CHEMICAL TECHNICIANS 384 160
225 SCIENCE TECHNICIANS, N.E.C. 327 313
235 TECHNICIANS, N.E.C. 766 115
269 SALES WORKERS, PARTS 132  
308 COMPUTER OPERATORS 2,260 282
309 PERIPHERAL EQUIPMENT OPERATORS 370 329
313 SECRETARIES 5,615 5,539
335 FILE CLERKS 15 15
345 DUPLICATING MACHINE OPERATORS 78 37
346 MAIL PREPARING AND PAPER HANDLING MACHINE OPERATORS 377 63
347 OFFICE MACHINE OPERATORS, N.E.C. 7 7
356 MAIL CLERKS, EXC. POSTAL SERVICE 613 552
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 2,705 198
365 STOCK AND INVENTORY CLERKS 1,722 89
366 METER READERS 202  
379 GENERAL OFFICE CLERKS 4,501 1,508
385 DATA-ENTRY KEYERS 1,602 764
444 MISCELLANEOUS FOOD PREPARATION OCCUPATIONS 258 228
448 SUPERVISORS, CLEANING AND BUILDING SERVICE WORKERS 306 51
449 MAIDS AND HOUSEMEN 11,336 7,135
453 JANITORS AND CLEANERS 108,424 25,974
455 PEST CONTROL OCCUPATIONS 4,742 574
469 PERSONAL SERVICE OCCUPATIONS, N.E.C. 238 98
503 SUPERVISORS, MECHANICS AND REPAIRERS 65  
505 AUTOMOBILE MECHANICS 12,080  
507 BUS, TRUCK, AND STATIONARY ENGINE MECHANICS 29,903 539
508 AIRCRAFT ENGINE MECHANICS 9,537 57
514 AUTOMOBILE BODY AND RELATED REPAIRERS 915  
515 AIRCRAFT MECHANICS, EXC. ENGINE 756 21
516 HEAVY EQUIPMENT MECHANICS 5,787 81
518 INDUSTRIAL MACHINERY REPAIRERS 3,808 66
519 MACHINERY MAINTENANCE OCCUPATIONS 2,445 7
523 ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT 80  
529 TELEPHONE INSTALLERS AND REPAIRERS 96  
533 MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS 5,508  
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 638  
538 OFFICE MACHINE REPAIRERS 431  
539 MECHANICAL CONTROLS AND VALVE REPAIRERS 73  
544 MILLWRIGHTS 1,779  
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 5,088  
549 NOT SPECIFIED MECHANICS AND REPAIRERS 14,554 357
558 SUPERVISORS, N.E.C. 1,010  
567 CARPENTERS 23,320 6
569 CARPENTER APPRENTICES 64  
573 DRYWALL INSTALLERS 2,264  
575 ELECTRICIANS 2,592 6
577 ELECTRICAL POWER INSTALLERS AND REPAIRERS 3,030  
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 5,586 163
583 PAPERHANGERS 387  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 5,254 6
595 ROOFERS 3,864  
597 STRUCTURAL METAL WORKERS 258  
599 CONSTRUCTION TRADES, N.E.C. 3,722  
613 SUPERVISORS, EXTRACTIVE OCCUPATIONS 178  
614 DRILLERS, OIL WELL 1,873  
617 MINING OCCUPATIONS, N.E.C. 8,359  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 2,345 170
634 TOOL AND DIE MAKERS 4,431  
637 MACHINISTS 28,674 868
643 BOILERMAKERS 65  
645 PATTERNMAKERS AND MODEL MAKERS, METAL 1,271 852
646 LAY-OUT WORKERS 58  
653 SHEET METAL WORKERS 2,310  
657 CABINET MAKERS AND BENCH CARPENTERS 565 151
659 MISCELLANEOUS PRECISION WOODWORKERS 60  
669 SHOE REPAIRERS 194  
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 95  
676 PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS 1,346  
679 BOOKBINDERS 1,084 553
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 1,515 413
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 3,028 56
695 POWER PLANT OPERATORS 135  
696 STATIONARY ENGINEERS 1,386 645
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 700 62
704 LATHE AND TURNING MACHINE OPERATORS 1,686 230
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 3,079 745
707 ROLLING MACHINE OPERATORS 1,519  
708 DRILLING AND BORING MACHINE OPERATORS 1,445  
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 1,401 198
713 FORGING MACHINE OPERATORS 2,615  
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 2,689 1,326
717 FABRICATING MACHINE OPERATORS, N.E.C. 81  
719 MOLDING AND CASTING MACHINE OPERATORS 4,825 1,492
723 METAL PLATING MACHINE OPERATORS 828 102
724 HEAT TREATING EQUIPMENT OPERATORS 342  
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 31  
727 SAWING MACHINE OPERATORS 2,513  
733 MISCELLANEOUS WOODWORKING MACHINE OPERATORS 694  
734 PRINTING MACHINE OPERATORS 41,356 4,136
735 PHOTOENGRAVERS AND LITHOGRAPHERS 175  
736 TYPESETTERS AND COMPOSITORS 7,383 2,730
737 MISCELLANEOUS PRINTING MACHINE OPERATORS 907 484
738 WINDING AND TWISTING MACHINE OPERATORS 264  
739 KNITTING, LOOPING, TAPING, AND WEAVING MACHINE OPERATORS 6,375 2,799
744 TEXTILE SEWING MACHINE OPERATORS 9,438 8,931
745 SHOE MACHINE OPERATORS 1,044 845
747 PRESSING MACHINE OPERATORS 57 57
748 LAUNDERING AND DRY CLEANING MACHINE OPERATORS 600 600
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 6,297 1,801
753 CEMENTING AND GLUING MACHINE OPERATORS 1,155 183
754 PACKAGING AND FILLING MACHINE OPERATORS 302  
755 EXTRUDING AND FORMING MACHINE OPERATORS 280 137
756 MIXING AND BLENDING MACHINE OPERATORS 2,950 96
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 583 45
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 15,130 1,710
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 139  
768 CRUSHING AND GRINDING MACHINE OPERATORS 55 29
769 SLICING AND CUTTING MACHINE OPERATORS 2,448 97
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 2,296 1,477
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 15,788 1,325
779 MACHINE OPERATORS, NOT SPECIFIED 13,030 6,392
783 WELDERS AND CUTTERS 7,474 127
785 ASSEMBLERS 53,930 29,293
787 HAND MOLDING, CASTING, AND FORMING OCCUPATIONS 54 23
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 119 34
795 MISCELLANEOUS HAND WORKING OCCUPATIONS 236 68
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 2,642 528
797 PRODUCTION TESTERS 836 464
804 TRUCK DRIVERS, HEAVY 1,769  
844 OPERATING ENGINEERS 1,095  
848 HOIST AND WINCH OPERATORS 355  
853 EXCAVATING AND LOADING MACHINE OPERATORS 781  
855 GRADER, DOZER, AND SCRAPER OPERATORS 468  
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 1,318 108
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 1,188 81
865 HELPERS, CONSTRUCTION TRADES 619  
869 CONSTRUCTION LABORERS 9,882  
873 PRODUCTION HELPERS 2,236  
878 MACHINE FEEDERS AND OFFBEARERS 12,186 8,855
883 FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C. 882  
885 GARAGE AND SERVICE STATION RELATED OCCUPATIONS 2,120  
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 1,294 805
888 HAND PACKERS AND PACKAGERS 2,320 2,131
889 LABORERS, EXCEPT CONSTRUCTION 9,510 2,891
TOTAL 628,746 136,026

*(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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