Code	Occupation Description (1980)	Total # Employees (Male & Female)	Total # Female Employees
036	INSPECTORS AND COMPLIANCE OFFICERS, EXC. CONSTRUCTION	13
073	CHEMISTS, EXCEPT BIOCHEMISTS	439
225	SCIENCE TECHNICIANS, N.E.C.	93
368	WEIGHERS, MEASURERS, AND CHECKERS	213
453	JANITORS AND CLEANERS	252
519	MACHINERY MAINTENANCE OCCUPATIONS	95
563	BRICKMASONS AND STONEMASONS	63
615	EXPLOSIVES WORKERS	9
695	POWER PLANT OPERATORS	175
699	MISCELLANEOUS PLANT AND SYSTEM OPERATORS	9
709	GRINDING, ABRADING, BUFFING, AND POLISHING MACHINE OPERATORS	145
756	MIXING AND BLENDING MACHINE OPERATORS	184
766	FURNACE, KILN, AND OVEN OPERATORS, EXC. FOOD	155
777	MISCELLANEOUS MACHINE OPERATORS, N.E.C.	1,567
779	MACHINE OPERATORS, NOT SPECIFIED	196
795	MISCELLANEOUS HAND WORKING OCCUPATIONS	53
798	PRODUCTION SAMPLERS AND WEIGHERS	73
804	TRUCK DRIVERS, HEAVY	13
805	TRUCK DRIVERS, LIGHT	80
853	EXCAVATING AND LOADING MACHINE OPERATORS	125
855	GRADER, DOZER, AND SCRAPER OPERATORS	81
856	INDUSTRIAL TRUCK AND TRACTOR EQUIPMENT OPERATORS	109
859	MISCELLANEOUS MATERIAL MOVING EQUIPMENT OPERATORS	102
873	PRODUCTION HELPERS	67
883	FREIGHT, STOCK, AND MATERIAL MOVERS, HAND, N.E.C.	32
888	HAND PACKERS AND PACKAGERS	13
889	LABORERS, EXCEPT CONSTRUCTION	823
TOTAL		5,181

*(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.