Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
007	FINANCIAL MANAGERS	91
073	CHEMISTS, EXCEPT BIOCHEMISTS	75	37
216	ENGINEERING TECHNICIANS, N.E.C.	93	56
235	TECHNICIANS, N.E.C.	7,091	236
364	TRAFFIC, SHIPPING, AND RECEIVING CLERKS	1,147
448	SUPERVISORS, CLEANING AND BUILDING SERVICE WORKERS	945
453	JANITORS AND CLEANERS	915	241
455	PEST CONTROL OCCUPATIONS	3,732	574
534	HEATING, AIR CONDITIONING, AND REFRIGERATION MECHANICS	638
585	PLUMBERS, PIPEFITTERS, AND STEAMFITTERS	3,990
633	SUPERVISORS, PRODUCTION OCCUPATIONS	44
637	MACHINISTS	453
653	SHEET METAL WORKERS	319
744	TEXTILE SEWING MACHINE OPERATORS	1,510	1,322
756	MIXING AND BLENDING MACHINE OPERATORS	1,509
877	STOCK HANDLERS AND BAGGERS	1,086
889	LABORERS, EXCEPT CONSTRUCTION	565
TOTAL		24,205	2,466

*(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.