SPECIAL TRADE CONTRACTORS (SIC 17)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	2,281
516	HEAVY EQUIPMENT MECHANICS	5,603
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	26,989
549	NOT SPECIFIED MECHANICS AND REPAIRERS	4,305	77
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	14,657
596	SHEETMETAL DUCT INSTALLERS	2,466
637	MACHINISTS	297
653	SHEET METAL WORKERS	1,300
869	CONSTRUCTION LABORERS	17,471
SUBTOTAL		75,369	77
FOOD AND KINDRED PRODUCTS (SIC 20)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
019	MANAGERS AND ADMINISTRATORS, N.E.C.	232
453	JANITORS AND CLEANERS	2,350	280
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	3,652
633	SUPERVISORS, PRODUCTION OCCUPATIONS	53
687	BAKERS	1,883	222
756	MIXING AND BLENDING MACHINE OPERATORS	157
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	52
SUBTOTAL		8,379	502
TEXTILE MILL PRODUCTS (SIC 22)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	334
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	221	52
783	WELDERS AND CUTTERS	26
785	ASSEMBLERS	79	34
873	PRODUCTION HELPERS	206	79
SUBTOTAL		866	165
APPAREL AND OTHER TEXTILE PRODUCTS (SIC 23)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
518	INDUSTRIAL MACHINERY REPAIRERS	37
744	TEXTILE SEWING MACHINE OPERATORS	2,421	2,421
769	SLICING AND CUTTING MACHINE OPERATORS	277	277
888	HAND PACKERS AND PACKAGERS	1,176	623
SUBTOTAL		3,911	3,321
LUMBER AND WOOD PRODUCTS (SIC 24)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	36
SUBTOTAL		36
FURNITURE AND FIXTURES (SIC 25)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
518	INDUSTRIAL MACHINERY REPAIRERS	366
SUBTOTAL		366
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	123
453	JANITORS AND CLEANERS	186
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	263
637	MACHINISTS	278
684	MISCELLANEOUS PRECISION WORKERS, N.E.C.	334
696	STATIONARY ENGINEERS	62
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	26
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	129
779	MACHINE OPERATORS, NOT SPECIFIED	547	313
783	WELDERS AND CUTTERS	245	6
785	ASSEMBLERS	938	938
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	313	235
SUBTOTAL		3,444	1,492
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	105
SUBTOTAL		105
STONE, CLAY, AND GLASS PRODUCTS (SIC 32)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
575	ELECTRICIANS	246
SUBTOTAL		246
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	92
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	192
SUBTOTAL		284
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	284
785	ASSEMBLERS	16
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	104
798	PRODUCTION SAMPLERS AND WEIGHERS	71
SUBTOTAL		475
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	96	32
216	ENGINEERING TECHNICIANS, N.E.C.	169
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	637	124
453	JANITORS AND CLEANERS	3,158	80
518	INDUSTRIAL MACHINERY REPAIRERS	625
567	CARPENTERS	123
575	ELECTRICIANS	386
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	58
633	SUPERVISORS, PRODUCTION OCCUPATIONS	65
779	MACHINE OPERATORS, NOT SPECIFIED	15,569	4,432
785	ASSEMBLERS	5,449	679
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	891
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	32
SUBTOTAL		27,258	5,347
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
365	STOCK AND INVENTORY CLERKS	12
453	JANITORS AND CLEANERS	276	6
518	INDUSTRIAL MACHINERY REPAIRERS	112	9
533	MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT REPAIRERS	19
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	31
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3
645	PATTERNMAKERS AND MODEL MAKERS, METAL	139
696	STATIONARY ENGINEERS	66
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	35
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	41	18
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	495	185
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	59	12
SUBTOTAL		1,288	230
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	67
224	CHEMICAL TECHNICIANS	3	3
235	TECHNICIANS, N.E.C.	142
453	JANITORS AND CLEANERS	1,528
505	AUTOMOBILE MECHANICS	45
515	AIRCRAFT MECHANICS, EXC. ENGINE	44
519	MACHINERY MAINTENANCE OCCUPATIONS	22
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	77
575	ELECTRICIANS	65
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	115
637	MACHINISTS	176
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	51
769	SLICING AND CUTTING MACHINE OPERATORS	131
785	ASSEMBLERS	21
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	38
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	687
SUBTOTAL		3,212	3
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	14
453	JANITORS AND CLEANERS	251
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	18
567	CARPENTERS	139	6
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	55
696	STATIONARY ENGINEERS	45
785	ASSEMBLERS	243
SUBTOTAL		765	6
LOCAL AND INTERURBAN PASSENGER TRANSIT (SIC 41)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	3,681
503	SUPERVISORS, MECHANICS AND REPAIRERS	217
507	BUS, TRUCK, AND STATIONARY ENGINE MECHANICS	516
SUBTOTAL		4,414
TRUCKING AND WAREHOUSING (SIC 42)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	638
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	339	25
SUBTOTAL		977	25
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	945
453	JANITORS AND CLEANERS	770
515	AIRCRAFT MECHANICS, EXC. ENGINE	143
653	SHEET METAL WORKERS	1,727	28
689	INSPECTORS, TESTERS, AND GRADERS	193
SUBTOTAL		3,778	28
COMMUNICATION (SIC 48)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
235	TECHNICIANS, N.E.C.	1,509	201
SUBTOTAL		1,509	201
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
055	ELECTRICAL AND ELECTRONIC ENGINEERS	70
575	ELECTRICIANS	700
577	ELECTRICAL POWER INSTALLERS AND REPAIRERS	933
SUBTOTAL		1,703
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
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	1,441	432
453	JANITORS AND CLEANERS	140
696	STATIONARY ENGINEERS	22
SUBTOTAL		1,603	432
AUTO REPAIR, SERVICES, AND GARAGES (SIC 75)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
549	NOT SPECIFIED MECHANICS AND REPAIRERS	2,508
SUBTOTAL		2,508
MISCELLANEOUS REPAIR SERVICES (SIC 76)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
526	HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS	248
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	3,959
549	NOT SPECIFIED MECHANICS AND REPAIRERS	1,985
633	SUPERVISORS, PRODUCTION OCCUPATIONS	133
SUBTOTAL		6,325
HEALTH SERVICES (SIC 80)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
083	MEDICAL SCIENTISTS	57	28
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	62
446	HEALTH AIDES, EXCEPT NURSING	300	270
449	MAIDS AND HOUSEMEN	1,561
453	JANITORS AND CLEANERS	1,633	53
518	INDUSTRIAL MACHINERY REPAIRERS	116
526	HOUSEHOLD APPLIANCE AND POWER TOOL REPAIRERS	20
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	439
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	29
549	NOT SPECIFIED MECHANICS AND REPAIRERS	383	7
567	CARPENTERS	14
575	ELECTRICIANS	95
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	221
SUBTOTAL		4,930	358
TOTAL		157,086	12,187
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.