Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
069	PHYSICISTS AND ASTRONOMERS	1,354	829
078	BIOLOGICAL AND LIFE SCIENTISTS	392	259
083	MEDICAL SCIENTISTS	300	253
095	REGISTERED NURSES	4,162	3,943
096	PHARMACISTS	109	83
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	5,450	4,268
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	1,625	1,134
223	BIOLOGICAL TECHNICIANS	284	215
224	CHEMICAL TECHNICIANS	95	63
225	SCIENCE TECHNICIANS, N.E.C.	50	50
446	HEALTH AIDES, EXCEPT NURSING	1,234	727
453	JANITORS AND CLEANERS	221
734	PRINTING MACHINE OPERATORS	3
TOTAL		15,280	11,825

*(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.