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
SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	460
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	4,625
587	PLUMBER, PIPEFITTER, AND STEAMFITTER APPRENTICES	460
783	WELDERS AND CUTTERS	211
SUBTOTAL		5,756
FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	269
889	LABORERS, EXCEPT CONSTRUCTION	269
SUBTOTAL		538
TEXTILE MILL PRODUCTS (SIC 22)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
544	MILLWRIGHTS	19
SUBTOTAL		19
FURNITURE AND FIXTURES (SIC 25)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	295	12
SUBTOTAL		295	12
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	52
518	INDUSTRIAL MACHINERY REPAIRERS	418
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	100	6
756	MIXING AND BLENDING MACHINE OPERATORS	339
783	WELDERS AND CUTTERS	245	6
SUBTOTAL		1,154	12
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	1,626
783	WELDERS AND CUTTERS	53
SUBTOTAL		1,679
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	44	44
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	178
453	JANITORS AND CLEANERS	578
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	267	44
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	178
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	578	445
878	MACHINE FEEDERS AND OFFBEARERS	311	178
887	VEHICLE WASHERS AND EQUIPMENT CLEANERS	89
SUBTOTAL		2,223	711
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	67
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
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	43
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	48
637	MACHINISTS	32
643	BOILERMAKERS	40
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
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	2,369
758	COMPRESSING AND COMPACTING MACHINE OPERATORS	13
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	954
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	156
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	51
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	117
SUBTOTAL		5,832
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	193
563	BRICKMASONS AND STONEMASONS	185
653	SHEET METAL WORKERS	2,454
779	MACHINE OPERATORS, NOT SPECIFIED	1,567
783	WELDERS AND CUTTERS	8,174	779
785	ASSEMBLERS	2,470
SUBTOTAL		15,043	779
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	207
637	MACHINISTS	488
683	ELECTRICAL AND ELECTRONIC EQUIPMENT ASSEMBLERS	73	35
783	WELDERS AND CUTTERS	7,169	55
785	ASSEMBLERS	1,611
889	LABORERS, EXCEPT CONSTRUCTION	999
SUBTOTAL		10,547	90
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	259
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	23
633	SUPERVISORS, PRODUCTION OCCUPATIONS	207	104
637	MACHINISTS	294
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	130	130
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	35
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	180
783	WELDERS AND CUTTERS	212	6
785	ASSEMBLERS	46	35
SUBTOTAL		1,386	275
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
515	AIRCRAFT MECHANICS, EXC. ENGINE	45
634	TOOL AND DIE MAKERS	36
637	MACHINISTS	158
703	LATHE AND TURNING MACHINE SET-UP OPERATORS	41
704	LATHE AND TURNING MACHINE OPERATORS	93
708	DRILLING AND BORING MACHINE OPERATORS	14
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	461	3
715	MISCELLANEOUS METAL, PLASTIC, STONE, AND GLASS WORKING MACHINE OPERATORS	89
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	50
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	327
783	WELDERS AND CUTTERS	6,424	72
785	ASSEMBLERS	310
SUBTOTAL		8,048	75
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	225
SUBTOTAL		225
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	207
783	WELDERS AND CUTTERS	798
SUBTOTAL		1,005
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
379	GENERAL OFFICE CLERKS	362
538	OFFICE MACHINE REPAIRERS	362
SUBTOTAL		724
TOTAL		64,138	1,954
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.