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
653	SHEET METAL WORKERS	1,986
735	PHOTOENGRAVERS AND LITHOGRAPHERS	76
SUBTOTAL		2,062
PRINTING AND PUBLISHING (SIC 27)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
753	CEMENTING AND GLUING MACHINE OPERATORS	1,264
SUBTOTAL		1,264
CHEMICALS AND ALLIED PRODUCTS (SIC 28)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	175
756	MIXING AND BLENDING MACHINE OPERATORS	408
SUBTOTAL		583
PETROLEUM AND COAL PRODUCTS (SIC 29)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	605
754	PACKAGING AND FILLING MACHINE OPERATORS	68
756	MIXING AND BLENDING MACHINE OPERATORS	98
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	215
889	LABORERS, EXCEPT CONSTRUCTION	98
SUBTOTAL		1,084
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	112	28
696	STATIONARY ENGINEERS	512
719	MOLDING AND CASTING MACHINE OPERATORS	840	476
756	MIXING AND BLENDING MACHINE OPERATORS	140
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	2,730	2,730
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	853
SUBTOTAL		5,187	3,234
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	144
544	MILLWRIGHTS	21
779	MACHINE OPERATORS, NOT SPECIFIED	13
783	WELDERS AND CUTTERS	31
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	5
SUBTOTAL		214
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	126
453	JANITORS AND CLEANERS	573
637	MACHINISTS	147
783	WELDERS AND CUTTERS	41
785	ASSEMBLERS	1,255
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	200
797	PRODUCTION TESTERS	122	61
SUBTOTAL		2,464	61
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	36
453	JANITORS AND CLEANERS	223
713	FORGING MACHINE OPERATORS	828
779	MACHINE OPERATORS, NOT SPECIFIED	4,016
785	ASSEMBLERS	7,193	1,360
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	121
SUBTOTAL		12,417	1,360
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
549	NOT SPECIFIED MECHANICS AND REPAIRERS	246
SUBTOTAL		246
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
225	SCIENCE TECHNICIANS, N.E.C.	24
235	TECHNICIANS, N.E.C.	26
505	AUTOMOBILE MECHANICS	45
637	MACHINISTS	187
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	89
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	112
SUBTOTAL		483
INSTRUMENTS AND RELATED PRODUCTS (SIC 38)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	12
SUBTOTAL		12
MISCELLANEOUS MANUFACTURING INDUSTRIES (SIC 39)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	420	210
785	ASSEMBLERS	1,259	1,259
SUBTOTAL		1,679	1,469
TRANSPORTATION BY AIR (SIC 45)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
689	INSPECTORS, TESTERS, AND GRADERS	193
SUBTOTAL		193
ELECTRIC, GAS, AND SANITARY SERVICES (SIC 49)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	3,809
SUBTOTAL		3,809
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
224	CHEMICAL TECHNICIANS	2,422	384
SUBTOTAL		2,422	384
MUSEUMS, BOTANICAL, ZOOLOGICAL GARDENS (SIC 84)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
185	DESIGNERS	575	246
SUBTOTAL		575	246
TOTAL		44,358	6,754
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.