National Occupational Exposure Survey
(1981 - 1983)

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

Agent Name METHANE, TRICHLOROFLUORO-
CAS # 75-69-4
RTECS # PB6125000
Agent Code 33565

Code Occupation Description (1980) Total # Employees
(Male & Female)
Total # Female
Employees
018 FUNERAL DIRECTORS 541  
019 MANAGERS AND ADMINISTRATORS, N.E.C. 101  
044 AEROSPACE ENGINEERS 190  
055 ELECTRICAL AND ELECTRONIC ENGINEERS 396  
056 INDUSTRIAL ENGINEERS 132  
057 MECHANICAL ENGINEERS 1,117 14
059 ENGINEERS, N.E.C. 805 165
073 CHEMISTS, EXCEPT BIOCHEMISTS 951 243
074 ATMOSPHERIC AND SPACE SCIENTISTS 22  
084 PHYSICIANS 557 236
085 DENTISTS 56 14
095 REGISTERED NURSES 43,307 36,982
098 INHALATION THERAPISTS 474 343
099 OCCUPATIONAL THERAPISTS 188 188
103 PHYSICAL THERAPISTS 2,922 2,357
185 DESIGNERS 66  
203 CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS 372 14
206 RADIOLOGIC TECHNICIANS 963 715
207 LICENSED PRACTICAL NURSES 2,608 2,473
208 HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C. 72 72
213 ELECTRICAL AND ELECTRONIC TECHNICIANS 2,198 138
215 MECHANICAL ENGINEERING TECHNICIANS 58  
216 ENGINEERING TECHNICIANS, N.E.C. 2,435 340
224 CHEMICAL TECHNICIANS 544 87
225 SCIENCE TECHNICIANS, N.E.C. 734  
235 TECHNICIANS, N.E.C. 127 12
327 ORDER CLERKS 189 139
335 FILE CLERKS 644 484
345 DUPLICATING MACHINE OPERATORS 28 9
364 TRAFFIC, SHIPPING, AND RECEIVING CLERKS 3,039 205
365 STOCK AND INVENTORY CLERKS 1,197 522
445 DENTAL ASSISTANTS 49 49
446 HEALTH AIDES, EXCEPT NURSING 1,058 670
447 NURSING AIDES, ORDERLIES, AND ATTENDANTS 561 548
449 MAIDS AND HOUSEMEN 4,888 1,924
453 JANITORS AND CLEANERS 21,929 1,366
455 PEST CONTROL OCCUPATIONS 3,732 574
487 ANIMAL CARETAKERS, EXCEPT FARM 1,838 1,608
505 AUTOMOBILE MECHANICS 1,043  
508 AIRCRAFT ENGINE MECHANICS 2,920 199
515 AIRCRAFT MECHANICS, EXC. ENGINE 150  
516 HEAVY EQUIPMENT MECHANICS 2,072 81
518 INDUSTRIAL MACHINERY REPAIRERS 458 18
523 ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT 9,361 87
526 HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS 268  
529 TELEPHONE INSTALLERS AND REPAIRERS 846  
533 MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS 135 19
534 HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS 9,001 15
535 CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS 153  
544 MILLWRIGHTS 1,691 109
547 SPECIFIED MECHANICS AND REPAIRERS, N.E.C. 1,429 33
549 NOT SPECIFIED MECHANICS AND REPAIRERS 5,004 179
567 CARPENTERS 1,918 241
575 ELECTRICIANS 1,905  
577 ELECTRICAL POWER INSTALLERS AND REPAIRERS 3,106  
579 PAINTERS, CONSTRUCTION AND MAINTENANCE 297  
585 PLUMBERS, PIPEFITTERS, AND STEAMFITTERS 6,983  
633 SUPERVISORS, PRODUCTION OCCUPATIONS 1,745 196
634 TOOL AND DIE MAKERS 2,057  
637 MACHINISTS 2,274 133
643 BOILERMAKERS 65  
645 PATTERNMAKERS AND MODEL MAKERS, METAL 1,332 852
647 PRECIOUS STONES AND METALS WORKERS (JEWELERS) 145  
649 ENGRAVERS, METAL 18  
655 MISCELLANEOUS PRECISION METAL WORKERS 364  
675 HAND MOLDERS AND SHAPERS, EXCEPT JEWELERS 391 135
676 PATTERNMAKERS, LAY-OUT WORKERS, AND CUTTERS 3  
678 DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS 617 21
679 BOOKBINDERS 45 27
683 ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS 1,686 992
684 MISCELLANEOUS PRECISION WORKERS, N.E.C. 2,369 58
689 INSPECTORS, TESTERS, AND GRADERS 2,038 726
693 ADJUSTERS AND CALIBRATORS 48 10
696 STATIONARY ENGINEERS 766 75
699 MISCELLANEOUS PLANT AND SYSTEM OPERATORS 26  
703 LATHE AND TURNING MACHINE SET-UP OPERATORS 627 62
704 LATHE AND TURNING MACHINE OPERATORS 71 3
706 PUNCHING AND STAMPING PRESS MACHINE OPERATORS 1,325 25
709 GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS 419  
715 MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS 110  
717 FABRICATING MACHINE OPERATORS, N.E.C. 63 13
719 MOLDING AND CASTING MACHINE OPERATORS 19,949 12,275
723 METAL PLATING MACHINE OPERATORS 130 6
725 MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS 1,618 306
728 SHAPING AND JOINING MACHINE OPERATORS 595 595
733 MISCELLANEOUS WOODWORKING MACHINE OPERATORS 18  
734 PRINTING MACHINE OPERATORS 1,168 491
735 PHOTOENGRAVERS AND LITHOGRAPHERS 103 22
736 TYPESETTERS AND COMPOSITORS 27  
737 MISCELLANEOUS PRINTING MACHINE OPERATORS 134 81
744 TEXTILE SEWING MACHINE OPERATORS 1,626 817
749 MISCELLANEOUS TEXTILE MACHINE OPERATORS 278 69
753 CEMENTING AND GLUING MACHINE OPERATORS 83 14
755 EXTRUDING AND FORMING MACHINE OPERATORS 919 364
756 MIXING AND BLENDING MACHINE OPERATORS 694 48
757 SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS 976 73
759 PAINTING AND PAINT SPRAYING MACHINE OPERATORS 1,185 409
765 FOLDING MACHINE OPERATORS 840 840
766 FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD 6,949 1,691
768 CRUSHING AND GRINDING MACHINE OPERATORS 35  
769 SLICING AND CUTTING MACHINE OPERATORS 1,708 256
774 PHOTOGRAPHIC PROCESS MACHINE OPERATORS 27  
777 MISCELLANEOUS MACHINE OPERATORS, N.E.C. 9,237 2,087
779 MACHINE OPERATORS, NOT SPECIFIED 9,431 2,630
783 WELDERS AND CUTTERS 1,888 51
784 SOLDERERS AND BRAZERS 6 6
785 ASSEMBLERS 30,983 13,686
786 HAND CUTTING AND TRIMMING OCCUPATIONS 189  
789 HAND PAINTING, COATING, AND DECORATING OCCUPATIONS 2  
796 PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS 937 307
797 PRODUCTION TESTERS 58  
856 INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS 289  
859 MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS 1,075 237
869 CONSTRUCTION LABORERS 972  
873 PRODUCTION HELPERS 18 15
878 MACHINE FEEDERS AND OFFBEARERS 276 154
887 VEHICLE WASHERS AND EQUIPMENT CLEANERS 288  
888 HAND PACKERS AND PACKAGERS 3,630 1,548
889 LABORERS, EXCEPT CONSTRUCTION 969 12
TOTAL 267,742 95,886

*(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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