Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
085	DENTISTS	1,598	523
095	REGISTERED NURSES	410	351
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	516	273
215	MECHANICAL ENGINEERING TECHNICIANS	58
216	ENGINEERING TECHNICIANS, N.E.C.	413
224	CHEMICAL TECHNICIANS	3
235	TECHNICIANS, N.E.C.	243	182
453	JANITORS AND CLEANERS	411
579	PAINTERS, CONSTRUCTION AND MAINTENANCE	318	297
677	OPTICAL GOODS WORKERS	2,026	1,393
678	DENTAL LABORATORY AND MEDICAL APPLIANCE TECHNICIANS	1,581
753	CEMENTING AND GLUING MACHINE OPERATORS	646	530
756	MIXING AND BLENDING MACHINE OPERATORS	629
888	HAND PACKERS AND PACKAGERS	220	55
TOTAL		9,073	3,604

*(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.