Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
073	CHEMISTS, EXCEPT BIOCHEMISTS	37	18
095	REGISTERED NURSES	2,692	2,455
207	LICENSED PRACTICAL NURSES	349	337
224	CHEMICAL TECHNICIANS	203	92
225	SCIENCE TECHNICIANS, N.E.C.	1,185	474
447	NURSING AIDES, ORDERLIES, AND ATTENDANTS	561	548
453	JANITORS AND CLEANERS	191	17
633	SUPERVISORS, PRODUCTION OCCUPATIONS	1,185
726	WOOD LATHE, ROUTING, AND PLANING MACHINE OPERATORS	410
756	MIXING AND BLENDING MACHINE OPERATORS	185
779	MACHINE OPERATORS, NOT SPECIFIED	296	296
785	ASSEMBLERS	557	278
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	74	74
889	LABORERS, EXCEPT CONSTRUCTION	4,201
TOTAL		12,125	4,591

*(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.