Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	93	56
095	REGISTERED NURSES	1,155	1,110
103	PHYSICAL THERAPISTS	434	317
216	ENGINEERING TECHNICIANS, N.E.C.	159	56
303	SUPERVISORS, GENERAL OFFICE	24
453	JANITORS AND CLEANERS	3,460
547	SPECIFIED MECHANICS AND REPAIRERS, N.E.C.	282
785	ASSEMBLERS	114	57
TOTAL		5,721	1,596

*(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.