Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
188	PAINTERS, SCULPTORS, CRAFT-ARTISTS, AND ARTIST PRINTMAKERS	1,384	896
203	CLINICAL LABORATORY TECHNOLOGISTS AND TECHNICIANS	41	31
453	JANITORS AND CLEANERS	96
599	CONSTRUCTION TRADES, N.E.C.	92
754	PACKAGING AND FILLING MACHINE OPERATORS	827	276
756	MIXING AND BLENDING MACHINE OPERATORS	1,515	41
757	SEPARATING, FILTERING, AND CLARIFYING MACHINE OPERATORS	270
759	PAINTING AND PAINT SPRAYING MACHINE OPERATORS	518	52
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	467
768	CRUSHING AND GRINDING MACHINE OPERATORS	172
809	TAXI CAB DRIVERS AND CHAUFFEURS	358	36
833	MARINE ENGINEERS	2,632
877	STOCK HANDLERS AND BAGGERS	138
889	LABORERS, EXCEPT CONSTRUCTION	138
TOTAL		8,649	1,332

*(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.