Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
069	PHYSICISTS AND ASTRONOMERS	7	7
073	CHEMISTS, EXCEPT BIOCHEMISTS	3,344	2,266
078	BIOLOGICAL AND LIFE SCIENTISTS	1,068	830
083	MEDICAL SCIENTISTS	583	470
084	PHYSICIANS	560	516
095	REGISTERED NURSES	1,482	1,323
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	27,161	21,391
206	RADIOLOGIC TECHNICIANS	1,134	711
216	ENGINEERING TECHNICIANS, N.E.C.	3,659	2,646
223	BIOLOGICAL TECHNICIANS	524	524
224	CHEMICAL TECHNICIANS	1,155	834
235	TECHNICIANS, N.E.C.	154	92
365	STOCK AND INVENTORY CLERKS	102	102
446	HEALTH AIDES, EXCEPT NURSING	7,142	5,134
447	NURSING AIDES, ORDERLIES, AND ATTENDANTS	218	218
449	MAIDS AND HOUSEMEN	34	34
453	JANITORS AND CLEANERS	76
785	ASSEMBLERS	77	61
TOTAL		48,478	37,161

*(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.