GENERAL BUILDING CONTRACTORS (SIC 15)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
643	BOILERMAKERS	6,423
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	3,241
SUBTOTAL		9,664
HEAVY CONSTRUCTION CONTRACTORS (SIC 16)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
516	HEAVY EQUIPMENT MECHANICS	152
SUBTOTAL		152
SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	153
516	HEAVY EQUIPMENT MECHANICS	3,235
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	19,905
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,692	77
558	SUPERVISORS, N.E.C.	374
565	TILE SETTERS, HARD AND SOFT	1,188
567	CARPENTERS	5,204
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	38,543
588	CONCRETE AND TERRAZZO FINISHERS	1,939
596	SHEETMETAL DUCT INSTALLERS	873
633	SUPERVISORS, PRODUCTION OCCUPATIONS	38
653	SHEET METAL WORKERS	1,986
783	WELDERS AND CUTTERS	107
804	TRUCK DRIVERS, HEAVY	606
869	CONSTRUCTION LABORERS	8,426
877	STOCK HANDLERS AND BAGGERS	77
SUBTOTAL		84,346	77
FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	269
783	WELDERS AND CUTTERS	18
889	LABORERS, EXCEPT CONSTRUCTION	269
SUBTOTAL		556
TOBACCO MANUFACTURES (SIC 21)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	23
SUBTOTAL		23
TEXTILE MILL PRODUCTS (SIC 22)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	180
SUBTOTAL		180
LUMBER AND WOOD PRODUCTS (SIC 24)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	180
SUBTOTAL		180
FURNITURE AND FIXTURES (SIC 25)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
717	FABRICATING MACHINE OPERATORS, N.E.C.	180
783	WELDERS AND CUTTERS	1,162
SUBTOTAL		1,342
PAPER AND ALLIED PRODUCTS (SIC 26)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
633	SUPERVISORS, PRODUCTION OCCUPATIONS	240
756	MIXING AND BLENDING MACHINE OPERATORS	240
783	WELDERS AND CUTTERS	168
873	PRODUCTION HELPERS	599
SUBTOTAL		1,247
PRINTING AND PUBLISHING (SIC 27)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	387
783	WELDERS AND CUTTERS	67
SUBTOTAL		454
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	117
SUBTOTAL		117
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	1,626
SUBTOTAL		1,626
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	294
637	MACHINISTS	441
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	246
783	WELDERS AND CUTTERS	4
SUBTOTAL		985
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
045	METALLURGICAL AND MATERIALS ENGINEERS	64
055	ELECTRICAL AND ELECTRONIC ENGINEERS	5
073	CHEMISTS, EXCEPT BIOCHEMISTS	19
216	ENGINEERING TECHNICIANS, N.E.C.	40
224	CHEMICAL TECHNICIANS	37
363	PRODUCTION COORDINATORS	8
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	8
374	MATERIAL RECORDING, SCHEDULING, AND DISTRIBUTING CLERKS, N.E.C.	13
453	JANITORS AND CLEANERS	552	112
516	HEAVY EQUIPMENT MECHANICS	11
518	INDUSTRIAL MACHINERY REPAIRERS	21
519	MACHINERY MAINTENANCE OCCUPATIONS	27
523	ELECTRONIC REPAIRERS, COMMUNICATIONS AND INDUSTRIAL EQUIPMENT	88
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	11
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	59
539	MECHANICAL CONTROLS AND VALVE REPAIRERS	37
544	MILLWRIGHTS	717
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	93
549	NOT SPECIFIED MECHANICS AND REPAIRERS	16
563	BRICKMASONS AND STONEMASONS	5
575	ELECTRICIANS	487	16
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	48
633	SUPERVISORS, PRODUCTION OCCUPATIONS	37
637	MACHINISTS	1,193	8
643	BOILERMAKERS	40
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	620
689	INSPECTORS, TESTERS, AND GRADERS	13
696	STATIONARY ENGINEERS	3
704	LATHE AND TURNING MACHINE OPERATORS	3
707	ROLLING MACHINE OPERATORS	125
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	24
719	MOLDING AND CASTING MACHINE OPERATORS	40
724	HEAT TREATING EQUIPMENT OPERATORS	48
727	SAWING MACHINE OPERATORS	3
756	MIXING AND BLENDING MACHINE OPERATORS	21
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	133
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	13
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	77
768	CRUSHING AND GRINDING MACHINE OPERATORS	5
769	SLICING AND CUTTING MACHINE OPERATORS	13
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	13
779	MACHINE OPERATORS, NOT SPECIFIED	37
783	WELDERS AND CUTTERS	528	22
785	ASSEMBLERS	117
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	69
797	PRODUCTION TESTERS	21
798	PRODUCTION SAMPLERS AND WEIGHERS	8
804	TRUCK DRIVERS, HEAVY	5
849	CRANE AND TOWER OPERATORS	57
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	21
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	16
873	PRODUCTION HELPERS	72
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	85
889	LABORERS, EXCEPT CONSTRUCTION	149	8
SUBTOTAL		5,975	166
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	80
389	ADMINISTRATIVE SUPPORT OCCUPATIONS, N.E.C.	1,462
453	JANITORS AND CLEANERS	957
518	INDUSTRIAL MACHINERY REPAIRERS	71
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,663
634	TOOL AND DIE MAKERS	1,882	13
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	692
725	MISCELLANEOUS METAL AND PLASTIC PROCESSING MACHINE OPERATORS	232
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	264
769	SLICING AND CUTTING MACHINE OPERATORS	224
783	WELDERS AND CUTTERS	8,496	249
785	ASSEMBLERS	3,108	812
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	1,071	741
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	679
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	198
889	LABORERS, EXCEPT CONSTRUCTION	124
SUBTOTAL		21,203	1,815
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	56
453	JANITORS AND CLEANERS	904
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	15
633	SUPERVISORS, PRODUCTION OCCUPATIONS	101
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	25
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	1,079	93
724	HEAT TREATING EQUIPMENT OPERATORS	213
755	EXTRUDING AND FORMING MACHINE OPERATORS	704
769	SLICING AND CUTTING MACHINE OPERATORS	7
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	113
779	MACHINE OPERATORS, NOT SPECIFIED	1,710
783	WELDERS AND CUTTERS	11,036	787
784	SOLDERERS AND BRAZERS	489	408
785	ASSEMBLERS	5,395	1,363
849	CRANE AND TOWER OPERATORS	23
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	32
SUBTOTAL		21,902	2,651
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	74	25
453	JANITORS AND CLEANERS	37
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	12
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	18
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	17
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	65
706	PUNCHING AND STAMPING PRESS MACHINE OPERATORS	574	103
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	2
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	111	81
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	81
783	WELDERS AND CUTTERS	784	130
785	ASSEMBLERS	1,703	905
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	162
SUBTOTAL		3,640	1,244
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
335	FILE CLERKS	82
453	JANITORS AND CLEANERS	2,117
503	SUPERVISORS, MECHANICS AND REPAIRERS	65
505	AUTOMOBILE MECHANICS	93
514	AUTOMOBILE BODY AND RELATED REPAIRERS	22
518	INDUSTRIAL MACHINERY REPAIRERS	91
519	MACHINERY MAINTENANCE OCCUPATIONS	22
575	ELECTRICIANS	100
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	259
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	273
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	150	14
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	755	74
779	MACHINE OPERATORS, NOT SPECIFIED	259
783	WELDERS AND CUTTERS	8,369	37
785	ASSEMBLERS	425
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	687
SUBTOTAL		13,769	125
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	37	23
637	MACHINISTS	106
783	WELDERS AND CUTTERS	2,203
785	ASSEMBLERS	2,871	630
SUBTOTAL		5,217	653
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	254	51
518	INDUSTRIAL MACHINERY REPAIRERS	268
783	WELDERS AND CUTTERS	127
SUBTOTAL		649	51
TRUCKING AND WAREHOUSING (SIC 42)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	327	25
655	MISCELLANEOUS PRECISION METAL WORKERS	364
SUBTOTAL		691	25
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
515	AIRCRAFT MECHANICS, EXC. ENGINE	206
783	WELDERS AND CUTTERS	1,077
SUBTOTAL		1,283
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
505	AUTOMOBILE MECHANICS	558
783	WELDERS AND CUTTERS	38
SUBTOTAL		596
WHOLESALE TRADE - DURABLE GOODS (SIC 50)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
505	AUTOMOBILE MECHANICS	466
SUBTOTAL		466
WHOLESALE TRADE - NONDURABLE GOODS (SIC 51)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
549	NOT SPECIFIED MECHANICS AND REPAIRERS	3,335
SUBTOTAL		3,335
PERSONAL SERVICES (SIC 72)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
549	NOT SPECIFIED MECHANICS AND REPAIRERS	140
SUBTOTAL		140
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	78
SUBTOTAL		78
AUTO REPAIR, SERVICES, AND GARAGES (SIC 75)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	2,963
SUBTOTAL		2,963
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	36
526	HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS	248
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	3,959
535	CAMERA, WATCH, AND MUSICAL INSTRUMENT REPAIRERS	3,476
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,419
633	SUPERVISORS, PRODUCTION OCCUPATIONS	133
637	MACHINISTS	2,346
783	WELDERS AND CUTTERS	8,297
787	HAND MOLDING, CASTING, AND FORMING OCCUPATIONS	293
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	905
SUBTOTAL		22,112
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	841	595
449	MAIDS AND HOUSEMEN	55
453	JANITORS AND CLEANERS	641	32
518	INDUSTRIAL MACHINERY REPAIRERS	81
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	12
549	NOT SPECIFIED MECHANICS AND REPAIRERS	634
575	ELECTRICIANS	27
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	25
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	84
783	WELDERS AND CUTTERS	40
SUBTOTAL		2,440	627
MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS (SIC 84)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	1,643	164
SUBTOTAL		1,643	164
TOTAL		208,974	7,598
RELATED PAGES: Estimates by SIC, Estimates by Occupation

*(1) The estimates for each occupation apply only to the 3- and 4-digit SICs surveyed within the 2-digit SIC where the agent was observed. Not all SICs were surveyed, and not all agents were observed in all surveyed SICs. (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.