Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
059	ENGINEERS, N.E.C.	6
224	CHEMICAL TECHNICIANS	143
235	TECHNICIANS, N.E.C.	30	6
385	DATA-ENTRY KEYERS	722
453	JANITORS AND CLEANERS	755
516	HEAVY EQUIPMENT MECHANICS	436
549	NOT SPECIFIED MECHANICS AND REPAIRERS	24
754	PACKAGING AND FILLING MACHINE OPERATORS	68
756	MIXING AND BLENDING MACHINE OPERATORS	240	48
779	MACHINE OPERATORS, NOT SPECIFIED	42
789	HAND PAINTING, COATING, AND DECORATING OCCUPATIONS	374	187
804	TRUCK DRIVERS, HEAVY	204
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	215
869	CONSTRUCTION LABORERS	2,654
888	HAND PACKERS AND PACKAGERS	120	12
889	LABORERS, EXCEPT CONSTRUCTION	98
TOTAL		6,130	253

*(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.