GENERAL BUILDING CONTRACTORS (SIC 15)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
783	WELDERS AND CUTTERS	183
869	CONSTRUCTION LABORERS	2,191	183
SUBTOTAL		2,374	183
RUBBER AND MISC. PLASTICS PRODUCTS (SIC 30)
Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	48	16
453	JANITORS AND CLEANERS	633
719	MOLDING AND CASTING MACHINE OPERATORS	535	249
755	EXTRUDING AND FORMING MACHINE OPERATORS	48
756	MIXING AND BLENDING MACHINE OPERATORS	711	199
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	3,947	80
779	MACHINE OPERATORS, NOT SPECIFIED	78
SUBTOTAL		6,000	544
TOTAL		8,374	727
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.