Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
216	ENGINEERING TECHNICIANS, N.E.C.	581	290
453	JANITORS AND CLEANERS	1,067	154
487	ANIMAL CARETAKERS, EXCEPT FARM	436	15
633	SUPERVISORS, PRODUCTION OCCUPATIONS	972	144
686	BUTCHERS AND MEAT CUTTERS	34,802	22,970
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	39
888	HAND PACKERS AND PACKAGERS	3,472	2,816
889	LABORERS, EXCEPT CONSTRUCTION	72
TOTAL		41,439	26,389

*(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.