Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
069	PHYSICISTS AND ASTRONOMERS	1,354	829
073	CHEMISTS, EXCEPT BIOCHEMISTS	510	392
095	REGISTERED NURSES	1,710	1,551
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	1,189	800
207	LICENSED PRACTICAL NURSES	150	150
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	1,625	1,134
224	CHEMICAL TECHNICIANS	637	359
225	SCIENCE TECHNICIANS, N.E.C.	57	11
335	FILE CLERKS	227
447	NURSING AIDES, ORDERLIES, AND ATTENDANTS	749	749
453	JANITORS AND CLEANERS	384
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	356
633	SUPERVISORS, PRODUCTION OCCUPATIONS	34
696	STATIONARY ENGINEERS	32
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	113
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	159
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	28
779	MACHINE OPERATORS, NOT SPECIFIED	56
796	PRODUCTION INSPECTORS, CHECKERS, AND EXAMINERS	93
797	PRODUCTION TESTERS	177	30
TOTAL		9,640	6,005

*(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.