Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
069	PHYSICISTS AND ASTRONOMERS	1,354	829
073	CHEMISTS, EXCEPT BIOCHEMISTS	7
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	198	151
206	RADIOLOGIC TECHNICIANS	403	267
208	HEALTH TECHNOLOGISTS AND TECHNICIANS, N.E.C.	1,625	1,134
213	ELECTRICAL AND ELECTRONIC TECHNICIANS	20
224	CHEMICAL TECHNICIANS	3,636	1,536
235	TECHNICIANS, N.E.C.	512	183
453	JANITORS AND CLEANERS	855
617	MINING OCCUPATIONS, N.E.C.	159
694	WATER AND SEWAGE TREATMENT PLANT OPERATORS	443
769	SLICING AND CUTTING MACHINE OPERATORS	14
889	LABORERS, EXCEPT CONSTRUCTION	165	91
TOTAL		9,392	4,192

*(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.