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
PRIMARY METAL INDUSTRIES (SIC 33)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,075	31
SUBTOTAL		1,075	31
FABRICATED METAL PRODUCTS (SIC 34)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	93
519	MACHINERY MAINTENANCE OCCUPATIONS	46
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	209
783	WELDERS AND CUTTERS	5
SUBTOTAL		353
MACHINERY, EXCEPT ELECTRICAL (SIC 35)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	168
519	MACHINERY MAINTENANCE OCCUPATIONS	12
549	NOT SPECIFIED MECHANICS AND REPAIRERS	206
637	MACHINISTS	4,386
717	FABRICATING MACHINE OPERATORS, N.E.C.	262	22
785	ASSEMBLERS	2,008
SUBTOTAL		7,042	22
ELECTRIC AND ELECTRONIC EQUIPMENT (SIC 36)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	13
637	MACHINISTS	185
719	MOLDING AND CASTING MACHINE OPERATORS	19	12
SUBTOTAL		217	12
TRANSPORTATION EQUIPMENT (SIC 37)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	326
637	MACHINISTS	2,447	82
779	MACHINE OPERATORS, NOT SPECIFIED	2,854
783	WELDERS AND CUTTERS	245
785	ASSEMBLERS	4,985
SUBTOTAL		10,857	82
BUSINESS SERVICES (SIC 73)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
637	MACHINISTS	382	25
SUBTOTAL		382	25
TOTAL		21,010	172
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.