Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
453	JANITORS AND CLEANERS	62
563	BRICKMASONS AND STONEMASONS	43
567	CARPENTERS	7,750
573	DRYWALL INSTALLERS	326
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	1,067
593	INSULATION WORKERS	98
756	MIXING AND BLENDING MACHINE OPERATORS	179
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	13
869	CONSTRUCTION LABORERS	5,010
877	STOCK HANDLERS AND BAGGERS	179
889	LABORERS, EXCEPT CONSTRUCTION	16
TOTAL		14,741

*(1) The estimates for each occupation apply across the surveyed industries in which the agent was observed. Not all industries were surveyed, and not all agents were observed in all surveyed industries. (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.